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2022RU03      Phys.Lett. B 830, 137144 (2022)

D.Rudolph, B.Blank, J.Giovinazzo, T.Roger, H.Alvarez-Pol, A.Arokia Raj, P.Ascher, M.Caamano-Fresco, L.Caceres, D.M.Cox, B.Fernandez-Dominguez, J.Lois-Fuentes, M.Gerbaux, S.Grevy, G.F.Grinyer, O.Kamalou, B.Mauss, A.Mentana, J.Pancin, J.Pibernat, J.Piot, O.Sorlin, C.Stodel, J.-C.Thomas, M.Versteegen

Mirror symmetry at mass A=54: E4 effective charges near doubly magic 56Ni

RADIOACTIVITY 54Ni(IT), (p) [from 9Be(58Ni, X)54Ni, E=75 MeV/nucleon]; measured decay products, Ep, Ip; deduced proton energies, B(E2), B(E4), partial level scheme, effective charges for E4 transitions, T1/2. Comparison with shell model calculations. The active target and time projection chamber (ACTAR TPC) in an experiment conducted at the Grand Accelerateur National d'Ions Lourds (GANIL).

doi: 10.1016/j.physletb.2022.137144
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2022VI03      Phys.Lett. B 830, 137123 (2022)

A.Vitez-Sveiczer, A.Algora, A.I.Morales, B.Rubio, G.G.Kiss, P.Sarriguren, P.Van Isacker, G.de Angelis, F.Recchia, S.Nishimura, J.Agramunt, V.Guadilla, A.Montaner-Piza, S.E.A.Orrigo, A.Horvath, D.Napoli, S.Lenzi, A.Boso, V.H.Phong, J.Wu, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, D.S.Ahn, H.Baba, P.Doornebal, N.Fukuda, N.Inabe, T.Isobe, T.Kubo, S.Kubono, H.Sakurai, Y.Shimizu, C.Sidong, B.Blank, P.Ascher, M.Gerbaux, T.Goigoux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, C.Magron, W.Gelletly, Zs.Dombradi, Y.Fujita, M.Tanaka, P.Aguilera, F.Molina, J.Eberth, F.Diel, D.Lubos, C.Borcea, E.Ganioglu, D.Nishimura, H.Oikawa, Y.Takei, S.Yagi, W.Korten, G.de France, P.Davies, J.Liu, J.Lee, T.Lokotko, I.Kojouharov, N.Kurz, H.Shaffner, A.Petrovici

The β-decay of 70Kr into 70Br: Restoration of the pseudo-SU(4) symmetry

RADIOACTIVITY 70Kr(EC), (β+p) [from 9Be(78Kr, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, T1/2, log ft, B(GT), β-delayed proton emission probability, an approximate realization of pseudo-SU(4) symmetry in the system. Comparison with the proton-neutron quasiparticle random-phase approximation (pnQRPA) calculations. The Radioactive Ion Beam Factory (RIBF) of the RIKEN Nishina Center using the BigRIPS fragment separator, the ZeroDegree Spectrometer, the WAS3ABI implantation station and the EURICA HPGe cluster array.

doi: 10.1016/j.physletb.2022.137123
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2021BL02      Eur.Phys.J. A 57, 28 (2021)

B.Blank, N.Adimi, M.Alcorta, A.Bey, M.J.G.Borge, B.A.Brown, F.de Oliveira Santos, C.Dossat, H.O.U.Fynbo, J.Giovinazzo, H.H.Knudsen, M.Madurga, A.Magilligan, I.Matea, A.Perea, K.Summerer, O.Tengblad, J.C.Thomas

Detailed study of the decay of 32Ar

RADIOACTIVITY 32Ar(EC), (β+p); measured decay products, Ep, Ip, Eγ, Iγ, p-γ-coin.; deduced γ-ray energies and intensities, branching ratios, energy levels, J, π, Gamow-Teller strength distribution B(GT). Comparison with shell-model calculations.

doi: 10.1140/epja/s10050-020-00341-3
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2021GI18      Nat. Commun. 12, 1 (2021)

J.Giovinazzo, T.Roger, B.Blank, D.Rudolph, B.A.Brown, H.Alvarez-Pol, A.Arokia Raj, P.Ascher, M.Caamano-Fresco, L.Caceres, D.M.Cox, B.Fernandez-Dominguez, J.Lois-Fuentes, M.Gerbaux, S.Grevy, G.F.Grinyer, O.Kamalou, B.Mauss, A.Mentana, J.Pancin, J.Pibernat, J.Piot, O.Sorlin, C.Stodel, J.-C.Thomas, M.Versteegen

4D-imaging of drip-line radioactivity by detecting proton emission from 54mNi pictured with ACTAR TPC

RADIOACTIVITY 54Ni(IT), (p) [from 9Be(58Ni, X)54mN, E=75 MeV/nucleon]; measured decay products, Ep, Ip; deduced proton-emission branching ratios from an isomeric state, spectroscopic factors, decay widths, T1/2. Comparison with shell model calculations using GXPF1A and KB3G interactions. The ACTAR TPC device.

doi: 10.1038/s41467-021-24920-0
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2021OR01      Phys.Rev. C 103, 014324 (2021)

S.E.A.Orrigo, B.Rubio, W.Gelletly, P.Aguilera, A.Algora, A.I.Morales, J.Agramunt, D.S.Ahn, P.Ascher, B.Blank, C.Borcea, A.Boso, R.B.Cakirli, J.Chiba, G.de Angelis, G.de France, F.Diel, P.Doornenbal, Y.Fujita, N.Fukuda, E.Ganioglu, M.Gerbaux, J.Giovinazzo, S.Go, T.Goigoux, S.Grevy, V.Guadilla, N.Inabe, G.G.Kiss, T.Kubo, S.Kubono, T.Kurtukian-Nieto, D.Lubos, C.Magron, F.Molina, A.Montaner-Piza, D.Napoli, D.Nishimura, S.Nishimura, H.Oikawa, V.H.Phong, H.Sakurai, Y.Shimizu, C.Sidong, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, Y.Takei, M.Tanaka, J.Wu, S.Yagi

β decay of the very neutron-deficient 60Ge and 62Ge nuclei

RADIOACTIVITY 59Zn, 60Ga, 60,62Ge(EC), (β+); 62Ge(β+p)[60,62Ge activities from 9Be(78Kr, X), E=345 MeV/nucleon at RIBF-RIKEN]; measured Eγ, Iγ, Ep, Ip, β+γ-, β+pγ- and γγ-coin, γ(implants)- and p(implants)-correlations, half-lives of decays of 60Ga, 60,62Ge using the WAS3ABi and EURICA arrays. 60Ge; deduced β+-delayed proton branching ratio. 60,62Ga, 59,60Zn, 59Cu; deduced levels, J, π, β feedings, Fermi and B(F) and Gamow-Teller B(GT) transition strengths, mass excesses of 60,62Ge, and 60Ga by analysis of IMME for A=60 nuclei. Comparison with previous experimental data.

NUCLEAR REACTIONS 9Be(78Kr, X), E=345 MeV/nucleon; measured reaction products, Z versus A/Q identification plot for nuclei of Z=28-36 and A/Q=1.85-1.95, with fragments separated using the BigRIPS separator and ZeroDegree spectrometer at RIBF-RIKEN facility, with main emphasis on the production of 60,62Ge.

doi: 10.1103/PhysRevC.103.014324
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2020AR04      Phys.Rev. C 101, 055501 (2020)

V.Araujo-Escalona, D.Atanasov, X.Flechard, P.Alfaurt, P.Ascher, B.Blank, L.Daudin, M.Gerbaux, J.Giovinazzo, S.Grevy, T.Kurtukian-Nieto, E.Lienard, G.Quemener, N.Severijns, S.Vanlangendonck, M.Versteegen, D.Zakoucky

Simultaneous measurements of the β-neutrino angular correlation in 32Ar pure Fermi and pure Gamow-Teller transitions using β-proton coincidences

RADIOACTIVITY 32Ar(β+), (β+p)[from Ca(p, X), E=1.4 GeV]; measured Eβ+, Iβ+, Ep, Ip, pβ+-coin using plastic scintillator for β+ detection and silicon detectors for proton detection at ISOLDE-CERN facility; deduced β-neutrino angular correlation coefficients for Fermi and Gamow-Teller transitions. Comparison with theoretical predictions of Standard model. Relevance to constraints on exotic weak interactions, and future WISArD (weak-interaction studies with 32Ar decay) research at CERN.

doi: 10.1103/PhysRevC.101.055501
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2020BL03      Eur.Phys.J. A 56, 156 (2020)

B.Blank, M.Aouadi, P.Ascher, M.Gerbaux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, M.R.Dunlop, R.Dunlop, A.T.Laffoley, G.F.Grinyer, P.Finlay

Branching ratio of the super-allowed β decay of 10C

RADIOACTIVITY 10C (β+); measured γ-decay products of β-decay of 10C using high-resolution separator (HRS) of ISOLDE at CERN with Al catcher foil with USSSD detector; deduced γ-ray energy spectrum (separately 1021l7 keV peak, experiment and background); calculated pile-up 511 keV contribution; simulated energy spectrum, used for peak-area more precise evaluation; deduced super-allowed branching ratio. Future experiment on super-allowed β-decay branching ratio , of 10C; deduced higher precision to be obtained, expected still better precision and very good precision for T1/2 and the reaction Q.

doi: 10.1140/epja/s10050-020-00165-1
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2020GI02      Acta Phys.Pol. B51, 577 (2020)

J.Giovinazzo, T.Goigoux, B.Blank, P.Ascher, M.Gerbaux, S.Grevy, T.Kurtukian Nieto, C.Magron, P.Doornenbal, N.Fukuda, N.Inabe, G.G.Kiss, T.Kubo, S.Kubono, S.Nishimura, H.Sakurai, Y.Shimizu, C.Sidong, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, P.Vi, J.Wu, D.S.Ahn, J.Agramunt, A.Algora, V.Guadilla, A.Montaner-Piza, A.I.Morales, S.E.A.Orrigo, B.Rubio, Y.Fujita, M.Tanaka, W.Gelletly, P.Aguilera, F.Molina, F.Diel, D.Lubos, G.De Angelis, D.Napoli, C.Borcea, A.Boso, R.B.Cakirli, E.Ganioglu, J.Chiba, D.Nishimura, H.Oikawa, Y.Takei, S.Yagi, K.Wimmer, G.De France, S.Go, B.A.Brown

Two-proton radioactivity: The interesting case of 67Kr and Further Studies

RADIOACTIVITY 67Kr(2p), (β+), 57Zn, 59,61Ge, 63,65Se, 68,69Kr(EC), (β+), (β+p), 55,56Cu, 60Ga, 63Ge, 64,65As, 67Kr(EC), (β+)[from 9Be(78Kr, X), E=350 MeV/nucleon, followed by separation of fragments using BigRIPS and Zero Degree Spectrometer at RIBF-RIKEN]; measured E(p), I(p), Eγ, half-lives of decays of isotopes from time distribution of (fragment)(decay events) correlations using EURICA-WAS3ABi setup at RIKEN; deduced %2p for the decay of 67Kr, and %β+p for 59,61Ge, 63Se, 68,69Kr. Comparison with previous experimental results.

doi: 10.5506/APhysPolB.51.577
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2020PA25      Phys.Rev. C 102, 014304 (2020)

J.Park, R.Krucken, A.Blazhev, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

Spectroscopy of 99Cd and 101In from β decays of 99In and 101Sn

RADIOACTIVITY 99In(EC), (β+), 101Sn(EC), (β+), (β+p)[from 9Be(124Xe, X), E=345 MeV/nucleon, followed by separation of fragments of interest using BigRIPS separator and the ZeroDegree spectrometer at RIBF-RIKEN facility]; measured β-correlated γ spectra, Eγ, Iγ, γγ-coin using the WAS3ABi detector and the EURICA array; generated hypothetical βγ-coin and βγγ-coin matrices. 99Cd, 101In; deduced levels, J, π. 101Sn(β+p); analyzed intensity distributions of β-delayed proton emission branches as a function of the excitation energy; calculated partial half-lives of electromagnetic decay and proton emission. Comparison of level structure with phenomenological shell model using SR88MHJM interaction, and β+p decay with semi-empirical proton emission theory by Delion, Liotta, and Wyss 2006.

doi: 10.1103/PhysRevC.102.014304
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2020VI02      Acta Phys.Pol. B51, 587 (2020)

A.Vitez-Sveiczer, A.Algora, A.I.Morales, B.Rubio, G.G.Kiss, G.De Angelis, R.Recchia, S.Nishimura, J.Agramunt, V.Guadilla, A.Montaner-Piza, S.E.A.Orrigo, A.Horvath, D.Napoli, S.Lenzi, A.Boso, V.H.Phong, J.Wu, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, D.S.Ahn, H.Baba, P.Doornenbal, N.Fukuda, N.Inabe, T.Isobe, T.Kubo, S.Kubono, H.Sakurai, Y.Shimizu, S.Chen, B.Blank, P.Ascher, M.Gerbaux, T.Goigoux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, C.Magron, W.Gelletly, Z.Dombradi, Y.Fujita, M.Tanaka, P.Aguilera, F.Molina, J.Eberth, F.Diel, D.Lubos, C.Borcea, E.Ganioglu, D.Nishimura, H.Oikawa, Y.Takei, S.Yagi, W.Korten, G.De France, P.Davies, J.Liu, J.Lee, T.Lokotko, I.Kojouharov, N.Kurz, H.Shaffner

Studying the Exotic Decay 70Kr → 70Br*

doi: 10.5506/APhysPolB.51.587
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2019BR15      Phys.Rev. C 100, 054332 (2019)

B.A.Brown, B.Blank, J.Giovinazzo

Hybrid model for two-proton radioactivity

RADIOACTIVITY 19Mg, 45Fe, 48Ni, 54Zn, 67Kr(2p); calculated half-lives using hybrid model combining the nuclear structure part from configuration-interaction (CI) calculations and the emission dynamics from a three-body approach, with the incoherent and the coherent sum of the different amplitudes contributing to the emission process, and compared with the experimental values; compiled experimental and theoretical data in literature.

doi: 10.1103/PhysRevC.100.054332
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2019DA02      Phys.Rev. C 99, 021302 (2019)

P.J.Davies, J.Park, H.Grawe, R.Wadsworth, R.Gernhauser, R.Krucken, F.Nowacki, D.S.Ahn, F.Ameil, H.Baba, T.Back, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, M.Dewald, P.Doornenbal, T.Faestermann, Y.Fang, G.de France, N.Fukuda, A.Gengelbach, J.Gerl, J.Giovinazzo, S.Go, N.Goel, M.Gorska, E.Gregor, H.Hotaka, S.Ilieva, N.Inabe, T.Isobe, D.G.Jenkins, J.Jolie, H.S.Jung, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, M.Lewitowicz, G.Lorusso, D.Lubos, L.Maier, E.Merchan, K.Moschner, D.Murai, F.Naqvi, H.Nishibata, D.Nishimura, S.Nishimura, I.Nishizuka, Z.Patel, N.Pietralla, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.F.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, J.Taprogge, P.Thole, S.Valder, Z.Wang, N.Warr, H.Watanabe, V.Werner, J.Wu, Z.Y.Xu, A.Yagi, K.Yoshinaga, Y.Zhu

Toward the limit of nuclear binding on the N=Z line: Spectroscopy of 96Cd

NUCLEAR REACTIONS 9Be(124Xe, X), E=345 MeV/nucleon; measured delayed γ-spectrum, Eγ, Iγ, γγ-coin, half-life of an isomeric state using BigRIPS separator, silicon active stopper for particle identification, and EURICA Ge detector array for γ detection at RIBF-RIKEN. 96Cd; deduced levels, isomer, J, π, configuration, medium-spin negative-parity spin trap based on the coupling of isoscalar T=0 and isovector T=1 neutron-proton pairs. Comparison with shell model calculations using GF, LSSM, and r3g model spaces.

doi: 10.1103/PhysRevC.99.021302
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2019GO34      Acta Phys.Pol. B50, 399 (2019)

T.Goigoux, P.Ascher, B.Blank, M.Gerbaux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, C.Magron, D.S.Ahn, P.Doornenbal, N.Fukuda, N.Inabe, G.Kiss, T.Kubo, S.Kubono, S.Nishimura, H.Sakurai, Y.Shimizu, C.Sidong, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, P.Vi, J.Wu, Y.Fujita, M.Tanaka, J.Agramunt, A.Algora, V.Guadilla, A.Montaner-Piza, A.I.Morales, S.E.A.Orrigo, B.Rubio, W.Gelletly, P.Aguilera, F.Molina, F.Diel, D.Lubos, G.de Angelis, D.Napoli, C.Borcea, A.Boso, R.B.Cakirli, E.Ganioglu, J.Chiba, D.Nishimura, H.Oikawa, Y.Takei, S.Yagi, K.Wimmer, G.De France, S.Go, B.A.Brown

67Kr Two-proton Radioactivity: Results and Theoretical Interpretations

RADIOACTIVITY 67Kr(2p)[from 9Be(78Kr, X), E=350 MeV/nucleon, followed by separation of fragments using BigRIPS and Zero Degree Spectrometer at RIBF-RIKEN]; measured E(p), I(p), half-life of decay of 67Kr from time distribution of (fragment)(decay events) correlations using EURICA-WAS3ABi setup at RIKEN. 67Kr; deduced %2p, Nilsson configurations. Comparison with theoretical calculations. 59Ge, 63Se, 68Kr; isotopes observed in A/Q versus Z identification plot.

doi: 10.5506/aphyspolb.50.399
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2019LU08      Phys.Rev.Lett. 122, 222502 (2019)

D.Lubos, J.Park, T.Faestermann, R.Gernhauser, R.Krucken, M.Lewitowicz, S.Nishimura, H.Sakurai, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, Y.K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, N.Warr, H.Watanabe, J.Wu, Z.Xu

Improved Value for the Gamow-Teller Strength of the 100Sn Beta Decay

RADIOACTIVITY 100Sn(β+) [from 9Be(124Xe, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ; deduced Gamow-Teller Strength, Q-value, T1/2. Comparison with available data.

doi: 10.1103/PhysRevLett.122.222502
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2019PA16      Phys.Rev. C 99, 034313 (2019)

J.Park, R.Krucken, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, Y.K.Kwon, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

New and comprehensive β- and βp-decay spectroscopy results in the vicinity of 100Sn

RADIOACTIVITY 87,88,88mTc, 88,89,91,91mRu, 90,90m,91,91m,92,92mRh, 92,93,94,95,95mPd, 94,94m,95,96,96mAg, 96,96m,97,97m,98,99Cd, 98,98m,99,100,101In, 101Sn(β+), (β+p)[from 9Be(124Xe, X), E=345 MeV/nucleon]; measured Eγ, Iγ, γγ- and βγ-coin, β+p spectra, half-lives of ground states and isomers from β decay βγ-coin, and βp decay curves, Q(β+), and %b+p branching ratios using the WAS3ABi double-sided silicon strip detector array for β+ detection and the Euroball-RIKEN Cluster Array for γ detection at RIKEN Nishina Center. 88Mo, 88,89,91Tc, 90,91,92Ru, 92,93,94Rh, 95,96Pd, 96,97Ag, 98Cd; deduced levels, J , π, multipolarities, β feedings and logft. Comparison with Serduke-Lawson-Gloeckner empirical shell model in proton and neutron p1/2 and g9/2 model space below 100Sn core.

NUCLEAR REACTIONS 9Be(124Xe, X)87Ru/88Ru/89Ru/90Ru/91Ru/92Ru/93Ru/90Rh/91Rh/92Rh/93Rh/94Rh/95Rh/91Pd/92Pd/93Pd/94Pd/95Pd/96Pd/97Pd/93Ag/94Ag/95Ag/96Ag/97Ag/98Ag/95Cd/96Cd/97Cd/98Cd/99Cd/97In/98In/99In/100In/99Sn/100Sn/101Sn, E=345 MeV/nucleon; measured yields, particle identification plot using BigRIPS and the ZeroDegree spectrometers, Bρ-TOF-ΔE technique with position-sensitive parallel-plate avalanche counters, plastic scintillators and gas-filled ionization chamber at RIBF-RIKEN facility.

doi: 10.1103/PhysRevC.99.034313
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2019RU07      Proc.XLII Symposium on Nuclear Physics 2019 (Cocoyoc2019), 7-10 January 2019, Cocoyoc, Mexico, p.012018 (2019), J.Phys.:Conf. Ser. 1308 (2019)

B.Rubio, P.Aguilera, F.Molina, J.Agramunt, A.Algora, V.Guadilla, A.Montaner-Piza, A.I.Morales, S.E.A.Orrigo, W.Gelletly, B.Blank, P.Asher, M.Gerbaux, J.Giovinazzo, S.Grevy, T.Kurtukian, C.Magron, J.Chiba, D.Nishimura, H.Oikawa, Y.Takei, S.Yang, D.S.Ahn, P.Doornenbal, N.Fukuda, N.Inabe, G.Kiss, T.Kubo, S.Kubono, S.Nishimura, Y.Shimizu, C.Sidong, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, P.Vi, J.Wu, Y.Fujita, M.Tanaka, F.Diel, D.Lubos, G.de Angelis, D.Napoli, C.Borcea, A.Boso, R.B.Cakirli, E.Ganioglu, G.de France, S.Go

Beta decay of the Tz=-2 nucleus 64Se and its descendants

RADIOACTIVITY 64Se, 64As(β+), (EC), (β+p)[from 9Be(78Kr, X), E=345 MeV, followed by separation of fragments using BigRIPS separator and implantation in double-sided Si-strip detectors (DSSSDs) at RIBF-RIKEN facility]; 63Ge(β+), (EC)[from 74Se β+p decay]; measured reaction products, particle identification plot, Eγ, Iγ, (implants)γ-coin, E(p), I(p) from β+-delayed proton decays, T1/2 of decays of 64Se, 64As, 63Ge. 64As, 63,64Ge, 63Ga; deduced levels, J, π, 0+ IAS of 64As, mirror states in 64As and 64Ga, and in 63Ge and 63Ga.

doi: 10.1088/1742-6596/1308/1/012018
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2018BL03      Eur.Phys.J. A 54, 93 (2018)

B.Blank, M.Aouadi, P.Ascher, M.Gerbaux, J.Giovinazzo, T.Goigoux, S.Grevy, T.Kurtukian Nieto, C.Magron, K.Johnston

Gamma-ray branching ratios in the decay of 49Cr

RADIOACTIVITY 49Cr(β+), (EC)[49Cr from ZnO3 target bombarded by protons and collected by ISOLDE facility]; measured Eγ, Iγ using coax Ge detector; deduced relative γ-ray branching ratios of 49V, 49V, 49Cr γ-ray transitions, levels, J, π, 49V β-decay and EC-decay relative and absolute ones. Compared with published data.

doi: 10.1140/epja/i2018-12532-4
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2018PA20      Phys.Rev. C 97, 051301R (2018)

J.Park, R.Krucken, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

β decays of the heaviest N=Z-1 nuclei and proton instability of 97In

RADIOACTIVITY 91Pd, 95Cd, 97In, 97mIn, 99Sn(β+p) [from 9Be(124Xe, X), E=345 MeV/nucleon]; measured decay products, Iβ, Eβ, Ip, Ep, Iγ, Eγ; deduced T1/2, Q-values, β-delayed proton emission branching ratios, log ft, isomeric ratio. Comparison shell model calculations, available experimental and mass evaluated data.

doi: 10.1103/PhysRevC.97.051301
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2017KU12      Eur.Phys.J. A 53, 134 (2017)

L.Kucuk, S.E.A.Orrigo, A.Montaner-Piza, B.Rubio, Y.Fujita, W.Gelletly, B.Blank, Y.Oktem, T.Adachi, A.Algora, P.Ascher, R.B.Cakirli, G.de France, H.Fujita, E.Ganioglu, J.Giovinazzo, S.Grevy, F.M.Marques, F.Molina, F.de Oliveira Santos, L.Perrot, R.Raabe, P.C.Srivastava, G.Susoy, A.Tamii, J.C.Thomas

Half-life determination of Tz = -1 and Tz = -1/2 proton-rich nuclei and the β decay of 58Zn

NUCLEAR REACTIONS Ni(64Zn, x), E=79 MeV/nucleon; measured fragments of Tz=-1 and =-1/2 (together 16 isotopes), subsequent charged particle decays using two DSSSD and four Ge detectors, β-delayed Eγ, Iγ. 58Zn[Tz=-1]; deduced decay scheme, absolute Fermi and Gamow-Teller β-transition strength B(F), B(GT), T1/2. 50Fe, 52Co, 56Cu, 60Ga, 62Ge[Tz=-1]; deduced T1/2. 47Cr, 49Mn, 51Fe, 55Ni, 57Cu, 59Zn, 61Ga, 63Ge[Tz=-1/2]; deduced T1/2. Here, T1/2 deduced using correlation time and the results compared with published ones.

doi: 10.1140/epja/i2017-12327-1
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2017MA18      Eur.Phys.J. A 53, 77 (2017)

C.Magron, Ph.Alfaurt, B.Blank, L.Daudin, T.Eronen, M.Gerbaux, J.Giovinazzo, D.Gorelov, S.Grevy, H.Guerin, J.Hakala, V.S.Kolhinen, J.Koponen, T.Kurtukian Nieto, I.D.Moore, H.Penttila, I.Pohjalainen, J.Reinikainen, M.Reponen, S.Rinta-Antila, M.Roche, A.de Roubin, N.Smirnova, B.Thomas, A.Voss, L.Xayavong

Precise measurements of half-lives and branching ratios for the β mirror transitions in the decay of 23Mg and 27Si

RADIOACTIVITY 23Mg, 27Si(β+), (EC)[from 23Na, 27Si(p, n), E=15, 30 MeV]; measured Eβ, Iβ using plastic scintillator, Eγ, Iγ using Ge detector; deduced T1/2, super-allowed branching ratio. Compared with other published results.

doi: 10.1140/epja/i2017-12271-0
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2017MO18      Phys.Rev. C 95, 064327 (2017)

A.I.Morales, A.Algora, B.Rubio, K.Kaneko, S.Nishimura, P.Aguilera, S.E.A.Orrigo, F.Molina, G.de Angelis, F.Recchia, G.Kiss, V.H.Phong, J.Wu, D.Nishimura, H.Oikawa, T.Goigoux, J.Giovinazzo, P.Ascher, J.Agramunt, D.S.Ahn, H.Baba, B.Blank, C.Borcea, A.Boso, P.Davies, F.Diel, Zs.Dombradi, P.Doornenbal, J.Eberth, G.de France, Y.Fujita, N.Fukuda, E.Ganioglu, W.Gelletly, M.Gerbaux, S.Grevy, V.Guadilla, N.Inabe, T.Isobe, I.Kojouharov, W.Korten, T.Kubo, S.Kubono, T.Kurtukian Nieto, N.Kurz, J.Lee, S.Lenzi, J.Liu, T.Lokotko, D.Lubos, C.Magron, A.Montaner-Piza, D.R.Napoli, H.Sakurai, H.Schaffner, Y.Shimizu, C.Sidong, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, Y.Takei, M.Tanaka, S.Yagi

Simultaneous investigation of the T=1(Jπ=0+) and T=0(Jπ=9+) β decays in 70Br

RADIOACTIVITY 70Br(β+), (EC) [from 9Be(78Kr, X), E=345 MeV/nucleon at RIKEN's RILAC2-RRC-fRC-IRC-SRC acceleration system using BigRIPS separator and ZeroDegree spectrometer]; measured reaction products, Eγ, Iγ, Eβ, half-life of the 9+ isomer by βγ(t), and 0+ ground state by (70Br)β(t), γγ-, and βγ-coin using Wide-Range Active Silicon Strip Stopper array for β and ion detection (WAS3ABi), and EURICA array for γ detection. 70Se; deduced levels, J, π, β feedings, logf Ft, bands, Ft value for the superallowed decay of 70Br. Comparison with Shell-model calculations using the PMMU and JUN45 interactions. Discussed test of the CVC hypothesis using the data in the present work.

doi: 10.1103/PhysRevC.95.064327
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2017PA35      Phys.Rev. C 96, 044311 (2017); Pub.Note Phys.Rev. C 96, 049901 (2017); Erratum Phys.Rev. C 97, 019901 (2018); Erratum Phys.Rev. C 103, 0499011 (2021)

J.Park, R.Krucken, D.Lubos, R.Gernhauser, M.Lewitowicz, S.Nishimura, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, I.Celikovic, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, H.Grawe, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, G.D.Kim, Y.-K.Kim, I.Kojouharov, T.Kubo, N.Kurz, G.Lorusso, K.Moschner, D.Murai, I.Nishizuka, Z.Patel, M.M.Rajabali, S.Rice, H.Sakurai, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Y.Xu

Properties of γ-decaying isomers and isomeric ratios in the 100Sn region

NUCLEAR REACTIONS 9Be(124Xe, X)88Zr/90Nb/90Mo/90Rh/91Nb/92Mo/92Rh/92Tc/92Ru/93Ru/94Ru/94Pd/94Ag/95Pd/95Ag/96Pd/96Ag/97Cd/98Cd/98In/98Ag/100Sn, E=345 MeV/nucleon; measured reaction products, half-lives of micro-second isomers and isomeric ratios using BigRIPS, ZeroDegree spectrometer, WAS3ABi and EURICA array at RIBF-RIKEN facility. Comparison of isomeric ratios with abrasion-ablation model combined with sharp cutoff model.

RADIOACTIVITY 88mZr, 90mNb, 90m,92mMo, 92mRh, 92mTc, 92m,93mRu, 94m,96mPd, 96m,98mAg, 98mCd(IT)[from 9Be(124Xe, X), E=345 MeV/nucleon]; measured Eγ, Iγ, branching ratios, γγ-coin, isomer half-lives by γ(t), isomeric ratios using BigRIPS, ZeroDegree spectrometer, WAS3ABi and EURICA array at RIBF-RIKEN facility. 88Zr, 90Nb, 90,92Mo, 92Rh, 92Tc, 92,93Ru, 94,96Pd, 96,98Ag, 98Cd; deduced levels, J, π, multipolarities, B(E1), B(E2), B(M2), B(E3), B(E4). Comparison with previous experimental results, and with shell model calculations using NUSHELLX code and SLGM interaction. 100Sn; search for a core-excited isomer in 100Sn decaying by E2 proved negative; calculated upper limit for half-life and lower limit for Eγ of an hypothetical isomer in 100Sn decaying by E2.

doi: 10.1103/PhysRevC.96.044311
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2016BL05      Phys.Rev. C 93, 061301 (2016)

B.Blank, T.Goigoux, P.Ascher, M.Gerbaux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, C.Magron, J.Agramunt, A.Algora, V.Guadilla, A.Montaner-Piza, A.I.Morales, S.E.A.Orrigo, B.Rubio, D.S.Ahn, P.Doornenbal, N.Fukuda, N.Inabe, G.Kiss, T.Kubo, S.Kubono, S.Nishimura, V.H.Phong, H.Sakurai, Y.Shimizu, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, J.Wu, Y.Fujita, M.Tanaka, W.Gelletly, P.Aguilera, F.Molina, F.Diel, D.Lubos, G.de Angelis, D.Napoli, C.Borcea, A.Boso, R.B.Cakirli, E.Ganioglu, J.Chiba, D.Nishimura, H.Oikawa, Y.Takei, S.Yagi, K.Wimmer, G.de France, S.Go

New neutron-deficient isotopes from 78Kr fragmentation

NUCLEAR REACTIONS 9Be(78Kr, X)39Ti/40Ti/43Cr/44Cr/46Mn/47Fe/48Fe/51Ni/59Ge/60Ge/63Se/64Se/67Kr/68Kr, E=345 MeV/nucleon; measured fragmentation residues, production σ using BigRIPS separator, zero-degree spectrometer, WAS3ABi setup for implantation, and EURICA array for γ detection at RIBF-RIKEN facility. Comparison of experimental cross sections with predictions from the EPAX3 parameterization. 63Se, 67Kr, 68Kr; newly identified nuclides. 59Ge, 63Se, 67Kr; candidates for 2p emitters. 58Ge, 62Se, 66Kr; deduced upper limit of cross sections, half-lives, search for these nuclides proved unsuccessful, consistent with unbound nature of these nuclei.

doi: 10.1103/PhysRevC.93.061301
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2515. Data from this article have been entered in the XUNDL database. For more information, click here.


2016CE02      Phys.Rev.Lett. 116, 162501 (2016)

I.Celikovic, M.Lewitowicz, R.Gernhauser, R.Krucken, S.Nishimura, H.Sakurai, D.S.Ahn, H.Baba, B.Blank, A.Blazhev, P.Boutachkov, F.Browne, G.de France, P.Doornenbal, T.Faestermann, Y.Fang, N.Fukuda, J.Giovinazzo, N.Goel, M.Gorska, S.Ilieva, N.Inabe, T.Isobe, A.Jungclaus, D.Kameda, Y.-K.Kim, Y.K.Kwon, I.Kojouharov, T.Kubo, N.Kurz, G.Lorusso, D.Lubos, K.Moschner, D.Murai, I.Nishizuka, J.Park, Z.Patel, M.Rajabali, S.Rice, H.Schaffner, Y.Shimizu, L.Sinclair, P.-A.Soderstrom, K.Steiger, T.Sumikama, H.Suzuki, H.Takeda, Z.Wang, H.Watanabe, J.Wu, Z.Xu

New Isotopes and Proton Emitters-Crossing the Drip Line in the Vicinity of 100Sn

NUCLEAR REACTIONS Be(124Xe, X)99Sn/100Sn/96In/97In/98In/94Cd/95Cd/92Ag/93Ag/90Pd, E=345 MeV/nucleon; measured reaction products, TOF; deduced production σ.

RADIOACTIVITY 93Ag, 89Rh(p); measured decay products, TOF; deduced T1/2.

doi: 10.1103/PhysRevLett.116.162501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2507. Data from this article have been entered in the XUNDL database. For more information, click here.


2016GO26      Phys.Rev.Lett. 117, 162501 (2016)

T.Goigoux, P.Ascher, B.Blank, M.Gerbaux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, C.Magron, P.Doornenbal, G.G.Kiss, S.Nishimura, P.-A.Soderstrom, V.H.Phong, J.Wu, D.S.Ahn, N.Fukuda, N.Inabe, T.Kubo, S.Kubono, H.Sakurai, Y.Shimizu, T.Sumikama, H.Suzuki, H.Takeda, J.Agramunt, A.Algora, V.Guadilla, A.Montaner-Piza, A.I.Morales, S.E.A.Orrigo, B.Rubio, Y.Fujita, M.Tanaka, W.Gelletly, P.Aguilera, F.Molina, F.Diel, D.Lubos, G.de Angelis, D.Napoli, C.Borcea, A.Boso, R.B.Cakirli, E.Ganioglu, J.Chiba, D.Nishimura, H.Oikawa, Y.Takei, S.Yagi, K.Wimmer, G.de France, S.Go, B.A.Brown

Two-Proton Radioactivity of 67Kr

RADIOACTIVITY 67Kr(2p), 59Ge, 63Se(β+) [from Be(78Kr, X), E=345 MeV/nucleon]; measured decay products, Eβ, Iβ; deduced decay energy, branching ratio, T1/2. Comparison with available data.

doi: 10.1103/PhysRevLett.117.162501
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2016OR03      Phys.Rev. C 93, 044336 (2016)

S.E.A.Orrigo, B.Rubio, Y.Fujita, W.Gelletly, J.Agramunt, A.Algora, P.Ascher, B.Bilgier, B.Blank, L.Caceres, R.B.Cakirli, E.Ganioglu, M.Gerbaux, J.Giovinazzo, S.Grevy, O.Kamalou, H.C.Kozer, L.Kucuk, T.Kurtukian-Nieto, F.Molina, L.Popescu, A.M.Rogers, G.Susoy, C.Stodel, T.Suzuki, A.Tamii, J.C.Thomas

β decay of the exotic Tz = - 2 nuclei 48Fe, 52Ni, and 56Zn

RADIOACTIVITY 48Fe, 52Ni, 56Zn(EC), (β+), (β+p)[from Ni(58Ni, X), E=74.5 MeV/nucleon using LISE3 separator at GANIL]; measured decay products, Eγ, Iγ, Ep, Ip, pγ-coin, half-life of decays of 48Fe, 52Ni, 56Zn from time correlations between protons and implants using DSSSDs and four EXOGAM Ge clovers; deduced total proton branching ratios. 47Cr, 48Mn, 51Fe, 52Co, 55Ni, 56Cu; deduced energy levels, J, π, isospin (T), T=2 IAS, beta and proton branching ratios, Fermi B(F) and Gamow Teller B(GT) transition strengths using comparison with mirror states, mass excesses for T=2 multiplet by isobaric mass multiplet equation (IMME). Comparison with previous available experimental data, and mass evaluations.

NUCLEAR REACTIONS Ni(58Ni, X)56Zn/57Zn/55Cu/56Cu/52Ni/53Ni/54Ni/55Ni/50Co/51Co/52Co/53Co/48Fe/49Fe/50Fe/51Fe/47Mn/48Mn/49Mn/45Cr/46Cr/47Cr/48Cr/44V/45V/46V, E=74.5 MeV/nucleon; measured ΔE versus TOF isotopic identification plot for Tz=-2, -3/2, -1 and -1/2 nuclei using LISE3 separator at GANIL.

doi: 10.1103/PhysRevC.93.044336
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2016OR08      Phys.Rev. C 94, 044315 (2016)

S.E.A.Orrigo, B.Rubio, W.Gelletly, B.Blank, Y.Fujita, J.Giovinazzo, J.Agramunt, A.Algora, P.Ascher, B.Bilgier, L.Caceres, R.B.Cakirli, G.de France, E.Ganioglu, M.Gerbaux, S.Grevy, O.Kamalou, H.C.Kozer, L.Kucuk, T.Kurtukian-Nieto, F.Molina, L.Popescu, A.M.Rogers, G.Susoy, C.Stodel, T.Suzuki, A.Tamii, J.C.Thomas

Observation of the 2+ isomer in 52Co

RADIOACTIVITY 52Ni, 52mCo, 52Co(EC), (β+)[from Ni(58Ni, X), E=74.5 MeV/nucleon using LISE3 separator at GANIL]; measured yields of reaction products with Tz=-1/2, -1, -3/2 and -2 by ΔE-E and TOF techniques, β particle and protons, Eγ, Iγ, half-lives of the ground state and isomer of 52Co from (fragment)γ-correlated decay curves. 52Co, 52Fe; deduced levels, J, π, IAS in 52Fe, β feedings, Fermi and Gamow-Teller transition strengths B(F) and B(GT). Relevance of 52Co nucleus for the rp-process.

doi: 10.1103/PhysRevC.94.044315
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2015BL02      Eur.Phys.J. A 51, 8 (2015)

B.Blank, J.-C.Thomas, P.Ascher, L.Audirac, A.Bacquias, L.Caceres, G.Canchel, L.Daudin, F.de Oliveira Santos, F.Didierjean, M.Gerbaux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, I.Matea, F.Munoz, M.Roche, L.Serani, N.Smirnova, J.Souin

Half-life and branching ratios for the β decay of 38Ca

RADIOACTIVITY 38Ca(β+)[from 40Ca fragmentation]; measured Iβ using scintillator, Eγ, Iγ using Ge; deduced T1/2, Ft, branching ratio. 38K deduced γ transitions decay scheme (partially using also Anderson data). 38Ca calculated β decay scheme with branching ratios, strength distribution using shell model with USD and Chung-Wildenthal interactions.

doi: 10.1140/epja/i2015-15008-1
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2015LA19      Phys.Rev. C 92, 025502 (2015)

A.T.Laffoley, C.E.Svensson, C.Andreoiu, G.C.Ball, P.C.Bender, H.Bidaman, V.Bildstein, B.Blank, D.S.Cross, G.Deng, A.Diaz Varela, M.R.Dunlop, R.Dunlop, A.B.Garnsworthy, P.E.Garrett, J.Giovinazzo, G.F.Grinyer, J.Grinyer, G.Hackman, B.Hadinia, D.S.Jamieson, B.Jigmeddorj, D.Kisliuk, K.G.Leach, J.R.Leslie, A.D.MacLean, D.Miller, B.Mills, M.Moukaddam, A.J.Radich, M.M.Rajabali, E.T.Rand, J.C.Thomas, J.Turko, C.Unsworth, P.Voss

High-precision half-life measurements for the superallowed Fermi β+ emitter 18Ne

RADIOACTIVITY 18Ne(β+), (EC), 23Ne(β-)[from Si(p, X), E=480 MeV, mass-separated 18,23Ne beams]; measured β using 4π continuous-flow gas proportional counter, Eγ, Iγ, βγ-coin, half-lives of 18Ne and 23Ne isotopes at TRIUMF-ISAC facility. Discussed rate-dependent and diffusion effects, and uncertainty analysis. Comparison with previous measurements. Relevance to superallowed Fermi decay.

doi: 10.1103/PhysRevC.92.025502
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2015OR02      Acta Phys.Pol. B46, 709 (2015)

S.E.A.Orrigo, B.Rubio, Y.Fujita, B.Blank, W.Gelletly, J.Agramunt, A.Algora, P.Ascher, B.Bilgier, L.Caceres, R.B.Cakirli, H.Fujita, E.Ganioglu, M.Gerbaux, J.Giovinazzo, S.Grevy, O.Kamalou, H.C.Kozer, L.Kucuk, T.Kurtukian-Nieto, F.Molina, L.Popescu, A.M.Rogers, G.Susoy, C.Stodel, T.Suzuki, A.Tamii, J.C.Thomas

β-delayed γ-proton Decay in 56Zn: Analysis of the Charged-particle Spectrum

RADIOACTIVITY 56Zn(ECp) [from Ni(56Ni, X)56Zn, E=74.5 MeV/nucleon]; measured decay products, Ep, Ip; deduced the charged particle spectrum.

doi: 10.5506/APhysPolB.46.709
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2014BL01      Hyperfine Interactions 223, 157 (2014)

B.Blank, A.Bacquias, G.Canchel, J.Giovinazzo, T.Kurtukian Nieto, I.Matea, J.Souin

High-precision half-life measurements of atomic nuclei

doi: 10.1007/s10751-012-0614-7
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2014KO17      Phys.Rev. C 89, 064315 (2014)

G.T.Koldste, B.Blank, M.J.G.Borge, J.A.Briz, M.Carmona-Gallardo, L.M.Fraile, H.O.U.Fynbo, J.Giovinazzo, B.D.Grann, J.G.Johansen, A.Jokinen, B.Jonson, T.Kurturkian-Nieto, J.H.Kusk, T.Nilsson, A.Perea, V.Pesudo, E.Picado, K.Riisager, A.Saastamoinen, O.Tengblad, J.-C.Thomas, J.Van de Walle

Multiparticle emission in the decay of 31Ar

RADIOACTIVITY 31Ar(β+p), (β+2p), (β+3p); 33Ar(β+), (β+p); measured Eγ, Iγ, E(p), I(p), γγ-, pγ-coin, pp(θ), half-life of 31Ar ground state at ISOLDE-CERN facility; deduced branching ratios for different decay modes, Q values, Fermi strength in β-decay. 28Si, 29P, 30S, 31,33Cl; deduced levels, J, π. measured Eγ, Iγ, decays of IAR in 31Cl and 33Cl. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.89.064315
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2014KO34      Phys.Lett. B 737, 383 (2014)

G.T.Koldste, B.Blank, M.J.G.Borge, J.A.Briz, M.Carmona-Gallardo, L.M.Fraile, H.O.U.Fynbo, J.Giovinazzo, J.G.Johansen, A.Jokinen, B.Jonson, T.Kurturkian-Nieto, T.Nilsson, A.Perea, V.Pesudo, E.Picado, K.Riisager, A.Saastamoinen, O.Tengblad, J.-C.Thomas, J.Van de Walle

Sizeable beta-strength in 31Ar (β 3p) decay

RADIOACTIVITY 31Ar(β+3p), (β+2p), (β+p); measured decay products, Eβ, Iβ, Eγ, Iγ, Ep, Ip; deduced decay spectra, Gamow-Teller strength B(GT). Comparison with available data.

doi: 10.1016/j.physletb.2014.09.015
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2014KU02      Phys.Rev. C 89, 024616 (2014)

T.Kurtukian-Nieto, J.Benlliure, K.-H.Schmidt, L.Audouin, F.Becker, B.Blank, E.Casarejos, F.Farget, M.Fernandez-Ordonez, J.Giovinazzo, D.Henzlova, B.Jurado, J.Pereira, O.Yordanov

Production cross sections of heavy neutron-rich nuclei approaching the nucleosynthesis r-process path around A=195

NUCLEAR REACTIONS 9Be(208Pb, X), E=1 GeV/nucleon; measured reaction products, production σ for 190 heavy neutron-rich nuclei, including 26 nuclides produced for the first time, using FRS, SEETRAM, MUSIC1 and MUSIC2 at UNILAC-SIS facility at GSI. In-flight fragmentation. 181,182Yb, 185,186Lu, 189,190Hf, 191,192,193Ta, 193,194,195W, 195,196,197,198Re, 198,199,200,201Os, 200,201,202,203Ir, 203,204Pt; measured production σ for new nuclides. Z=70, A=170-182; Z=71, A=170-186; Z=72, A=174, 175, 177-190; Z=73, A=176-193; Z=74, A=178-195; Z=75, A=182-184, 186-198; Z=76, A=183-201; Z=77, A=186-203; Z=78, A=188-190, 192-204; Z=79, A=191-205; Z=80, A=197-202, 204-206; Z=81, A=200-204, 206, 207; Z=82, A=204-207; Z=83, A=205-208; measured production σ. Comparison with EPAX, COFRA, and ABRABLA nuclear fragmentation cross-section models. Relevance to r-process waiting point nuclei at A=195.

doi: 10.1103/PhysRevC.89.024616
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2014KU23      Eur.Phys.J. A 50, 135 (2014)

T.Kurtukian-Nieto, J.Benlliure, K.-H.Schmidt, L.Audouin, F.Becker, B.Blank, I.N.Borzov, E.Casarejos, F.Farget, M.Fernandez-Ordonez, J.Giovinazzo, D.Henzlova, B.Jurado, K.Langanke, G.Martinez-Pinedo, J.Pereira, O.Yordanov

Beta-decay half-lives of new neutron-rich isotopes of Re, Os and Ir approaching the r-process path near N = 126

doi: 10.1140/epja/i2014-14135-5
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2014OR03      Acta Phys.Pol. B45, 355 (2014)

S.E.A.Orrigo, B.Rubio, J.Agramunt, A.Algora, F.Molina, Y.Fujita, B.Blank, P.Ascher, M.Gerbaux, J.Giovinazzo, S.Grevy, T.Kurtukian-Nieto, W.Gelletly, B.Bilgier, R.B.Cakirli, E.Ganioglu, H.C.Kozer, L.Kucuk, G.Susoy, L.Caceres, O.Kamalou, C.Stodel, J.C.Thomas, H.Fujita, T.Suzuki, A.Tamii, L.Popescu, A.M.Rogers

Beta Decay of the Exotic Tz = -2, 56Zn Nucleus and Half-life of Various Proton-rich Tz = -1 Nuclei

RADIOACTIVITY 56Zn(β+p); measured decay products, Eπ, Iπ, Eγ, Iγ; deduced level scheme, J, π, Fermi strength.

doi: 10.5506/APhysPolB.45.355
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2014OR04      Phys.Rev.Lett. 112, 222501 (2014)

S.E.A.Orrigo, B.Rubio, Y.Fujita, B.Blank, W.Gelletly, J.Agramunt, A.Algora, P.Ascher, B.Bilgier, L.Caceres, R.B.Cakirli, H.Fujita, E.Ganioglu, M.Gerbaux, J.Giovinazzo, S.Grevy, O.Kamalou, H.C.Kozer, L.Kucuk, T.Kurtukian-Nieto, F.Molina, L.Popescu, A.M.Rogers, G.Susoy, C.Stodel, T.Suzuki, A.Tamii, J.C.Thomas

Observation of the β-Delayed γ-Proton Decay of 56Zn and its Impact on the Gamow-Teller Strength Evaluation

RADIOACTIVITY 56Zn(EC), (ECp) [from Ni(58Ni, X)56Zn, E=74.5 MeV/nucleon]; measured decay products, Eγ, Iγ, Ep, Ip; deduced γ and proton energies, intensities, Fermi and Gamow-Teller transition strengths, B(F), B(GT). Comparison with available data.

doi: 10.1103/PhysRevLett.112.222501
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2014RO14      Nucl.Data Sheets 120, 41 (2014)

A.M.Rogers, J.Giovinazzo, C.J.Lister, B.Blank, G.Canchel, J.A.Clark, G.de France, S.Grevy, S.Gros, E.A.McCutchan, F.de Oliveira Santos, G.Savard, D.Seweryniak, I.Stefan, J.-C.Thomas

β-Decay in the Region of Neutron-deficient 69, 70, 71Kr

RADIOACTIVITY 65Se, 69Kr(EC), (β+p) [from Ni(78Kr, X), E=70 MeV/nucleon]; measured decay products, Eγ, Iγ. 59Zn, 61,62Ga, 62,63Ge, 64,65,66As, 66,67Se, 70Br, 70,71Kr; deduced T1/2.

doi: 10.1016/j.nds.2014.07.001
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2014RU08      Nucl.Data Sheets 120, 37 (2014)

B.Rubio, S.E.A.Orrigo, L.Kucuk, A.Montaner-Piza, Y.Fujita, H.Fujita, B.Blank, W.Gelletly, T.Adachi, J.Agramunt, A.Algora, P.Ascher, B.Bilgier, L.Caceres, R.B.Cakirli, G.de France, E.Ganioglu, M.Gerbaux, J.Giovinazzo, S.Grevy, O.Kamalou, H.C.Kozer, T.Kurtukian-Nieto, F.M.Marques, F.Molina, Y.Oktem, F.de Oliveira Santos, L.Perrot, L.Popescu, R.Raabe, A.M.Rogers, P.C.Srivastava, G.Susoy, T.Suzuki, A.Tamii, J.C.Thomas

Beta Decay Study of the Tz = -256Zn Nucleus and the Determination of the Half-Lives of a Few fp-shell Nuclei

RADIOACTIVITY 56,58,59Zn, 53Co(EC), (β+p), 55Ni(EC); measured decay products, Ep, Ip.; deduced energy levels, J, π, total proton branching ratios, β-delayed γ-emission.

doi: 10.1016/j.nds.2014.06.135
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2013KO13      Phys.Rev. C 87, 055808 (2013)

G.T.Koldste, B.Blank, M.J.G.Borge, J.A.Briz, M.Carmona-Gallardo, L.M.Fraile, H.O.U.Fynbo, J.Giovinazzo, J.G.Johansen, A.Jokinen, B.Jonson, T.Kurturkian-Nieto, J.H.Kusk, T.Nilsson, A.Perea, V.Pesudo, E.Picado, K.Riisager, A.Saastamoinen, O.Tengblad, J.-C.Thomas, J.Van de Walle

Relative proton and γ widths of astrophysically important states in 30S studied in the β-delayed decay of 31Ar

RADIOACTIVITY 31Ar(β+), (β+p), (β+2p)[60 keV 31Ar beam from Ca(p, X), pulsed beam]; measured Eγ, Iγ, E(p), pγ-coin at ISOLDE-CERN facility. 30S; deduced levels, astrophysically relevant resonances in, γ-branching ratios, Γγp ratios. 29P; deduced levels. Comparison with previous experimental data.

doi: 10.1103/PhysRevC.87.055808
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2013LA23      Phys.Rev. C 88, 015501 (2013)

A.T.Laffoley, C.E.Svensson, C.Andreoiu, R.A.E.Austin, G.C.Ball, B.Blank, H.Bouzomita, D.S.Cross, A.Diaz Varela, R.Dunlop, P.Finlay, A.B.Garnsworthy, P.E.Garrett, J.Giovinazzo, G.F.Grinyer, G.Hackman, B.Hadinia, D.S.Jamieson, S.Ketelhut, K.G.Leach, J.R.Leslie, E.Tardiff, J.C.Thomas, C.Unsworth

High-precision half-life measurements for the superallowed Fermi β+ emitter 14O

RADIOACTIVITY 14O(β+)[from 12C14O molecules in A=26 products produced in bombardment of SiC target by 500 MeV protons]; measured Eγ, Iγ, Eβ, Iβ, half-life of 14O superallowed β+ emitter using 8π detector array for γ rays and plastic scintillators for β radiation at TRIUMF-ISAC facility. Detailed analysis of statistical and systematic uncertainties. Comparison with previous experimental half-life values.

doi: 10.1103/PhysRevC.88.015501
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2012AS02      Acta Phys.Pol. B43, 261 (2012)

P.Ascher, N.Adimi, L.Audirac, B.Blank, F.Delalee, C.-E.Demonchy, J.Giovinazzo, T.Kurtukian-Nieto, S.Leblanc, J.-L.Pedroza, J.Pibernat, L.Serani, F.de Oliveira Santos, S.Grevy, J.-C.Thomas, L.Perrot, P.Srivastava, C.Borcea, I.Companis, L.V.Grigorenko, B.A.Brown

Two Proton Radioactivity Studies with a Time Projection Chamber

RADIOACTIVITY 45Fe, 54Zn(2p) [from Ni(58Ni, X), E=74.5 MeV/nucleon]; measured decay products, Ep, Ip; deduced angular and energy distributions between two protons. Comparison with MSU experiment.

doi: 10.5506/APhysPolB.43.261
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2012AU08      Eur.Phys.J. A 48, 179 (2012)

L.Audirac, P.Ascher, B.Blank, C.Borcea, B.A.Brown, G.Canchel, C.E.Demonchy, F.de Oliveira Santos, C.Dossat, J.Giovinazzo, S.Grevy, L.Hay, J.Huikari, S.Leblanc, I.Matea, J.-L.Pedroza, L.Perrot, J.Pibernat, L.Serani, C.Stodel, J.-C.Thomas

Direct and β-delayed multi-proton emission from atomic nuclei with a time projection chamber: the cases of 43Cr, 45Fe, and 51Ni

RADIOACTIVITY 45Fe, 51Ni(2p);43Cr(β+p), (β+2p), (β+3p); measured decay products correlations using Si and TPC (time-projection chamber); calculated 2p removal spectroscopic amplitudes, partial T1/2 using SDPFU Hamiltonian; deduced preference of sequential proton emission in β-delayed 2p decay.

doi: 10.1140/epja/i2012-12179-1
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2012BA54      Eur.Phys.J. A 48, 155 (2012)

A.Bacquias, T.Kurtukian-Nieto, P.Ascher, L.Audirac, J.Aysto, B.Blank, V.-V.Elomaa, T.Eronen, J.Giovinazzo, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, V.S.Kolhinen, I.D.Moore, S.Rahaman, M.Reponen, J.Rissanen, A.Saastamoinen, J.Souin

Precision half-life determination of a mirror β transition: The decay of 31S

RADIOACTIVITY 31S(β+), (EC)[from 31P(p, n), E=19 MEV]; measured half-life. IGISOL method for source production and JYFLTRAP Penning trap.

doi: 10.1140/epja/i2012-12155-9
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2012BE38      J.Phys.:Conf.Ser. 337, 012070 (2012)

J.Benlliure, H.Alvarez-Pol, T.Kurtukian-Nieto, A.I.Morales, L.Audouin, F.Becker, B.Blank, I.Borzov, E.Casarejos, D.Cortina-Gil, B.Fernandez, J.Giovinazzo, D.Henzlova, B.Jurado, L.Langanke, G.Martinez-Pinedo, P.Napolitani, J.Pereira, F.Rejmund, K.-H.Schmidt, O.Yordanov, for the RISING Collaboration

Approaching r-process nuclei at N = 126

RADIOACTIVITY 194,195,196Re, 199,200Os, 198,201,202Ir, 203,204Pt, 204Au(β-); measured Iβ(t) using DSSSD; deduced T1/2; calculated T1/2 using Gross theory, FR droplet model and energy-density functional.

doi: 10.1088/1742-6596/337/1/012070
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2011AS08      Phys.Rev.Lett. 107, 102502 (2011)

P.Ascher, L.Audirac, N.Adimi, B.Blank, C.Borcea, B.A.Brown, I.Companis, F.Delalee, C.E.Demonchy, F.de Oliveira Santos, J.Giovinazzo, S.Grevy, L.V.Grigorenko, T.Kurtukian-Nieto, S.Leblanc, J.-L.Pedroza, L.Perrot, J.Pibernat, L.Serani, P.C.Srivastava, J.-C.Thomas

Direct Observation of Two Protons in the Decay of 54Zn

RADIOACTIVITY 54Zn(2p) [from Ni(58Ni, X), E=75.5 MeV/nucleon]; measured decay products, proton spectra; deduced branching ratio, total decay energy, angular and energy correlations, T1/2. Comparison with theoretical calculations.

doi: 10.1103/PhysRevLett.107.102502
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2011BL01      Acta Phys.Pol. B42, 545 (2011)

B.Blank, P.Ascher, L.Audirac, G.Canchel, J.Giovinazzo, T.Kurtukian-Nieto, F.de Oliveira Santos, S.Grevy, J.-C.Thomas, C.Borcea, L.V.Grigorenko

Two-proton Radioactivity as a Tool of Nuclear Structure Studies

RADIOACTIVITY 45Fe, 54Zn(2p); measured proton spectra; deduced T1/2, proton energy and angular distributions.

doi: 10.5506/APhysPolB.42.545
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2011DA08      Phys.Rev. C 83, 054312 (2011)

J.M.Daugas, I.Matea, J.-P.Delaroche, M.Pfutzner, M.Sawicka, F.Becker, G.Belier, C.R.Bingham, R.Borcea, E.Bouchez, A.Buta, E.Dragulescu, G.Georgiev, J.Giovinazzo, M.Girod, H.Grawe, R.Grzywacz, F.Hammache, F.Ibrahim, M.Lewitowicz, J.Libert, P.Mayet, V.Meot, F.Negoita, F.de Oliveira Santos, O.Perru, O.Roig, K.Rykaczewski, M.G.Saint-Laurent, J.E.Sauvestre, O.Sorlin, M.Stanoiu, I.Stefan, Ch.Stodel, Ch.Theisen, D.Verney, J.Zylicz

β-decay measurements for N > 40 Mn nuclei and inference of collectivity for neutron-rich Fe isotopes

RADIOACTIVITY 58,59,60,61Ti, 61,62,63,64V, 63,64,65,66Cr, 64,65,66,67,68,69Mn, 67,68,69,70,71Fe, 69,70,71,72,73,74Co(β-)[from 86Kr(Ta, X), E=57.8 MeV/nucleon]; measured β spectra, Eγ, Iγ, βγ-coin, half-lives. Comparison with previous half-life measurements. 67Mn(β-n); measured beta-delayed neutron emission probability. 66,67,68Fe; deduced levels, J, π, multipolarity. Comparison with mean-field calculations.

NUCLEAR STRUCTURE 66,68Fe; calculated levels, J, π, PES, neutron single-particle levels. Application to 67Fe structure. Beyond-mean-field calculations with the Gogny D1S force. Systematics of first 2+ states in N=24-50 Fe isotopes.

doi: 10.1103/PhysRevC.83.054312
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2011RO47      Phys.Rev. C 84, 051306 (2011)

A.M.Rogers, J.Giovinazzo, C.J.Lister, B.Blank, G.Canchel, J.A.Clark, G.de France, S.Grevy, S.Gros, E.A.McCutchan, F.de Oliveira Santos, G.Savard, D.Seweryniak, I.Stefan, J.-C.Thomas

69Kr β-delayed proton emission: A Trojan horse for studying states in proton-unbound 69Br

RADIOACTIVITY 69Kr, 65Se(β+p)[from Ni(78Kr, X), E=70 MeV/nucleon]; measured Eγ, Iγ, Eβ, (implants)βγ-coin, half-lives using LISE3 facility at GANIL. 64Ge, 65As, 68Se, 69Br; deduced levels, J, π, isospin, IAS, β feeding, log ft, Coulomb Displacement energy (CDE), Q value.

doi: 10.1103/PhysRevC.84.051306
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2011SO11      Eur.Phys.J. A 47, 40 (2011)

J.Souin, T.Eronen, P.Ascher, L.Audirac, J.Aysto, B.Blank, V.-V.Elomaa, J.Giovinazzo, J.Hakala, A.Jokinen, V.S.Kolhinen, P.Karvonen, I.D.Moore, S.Rahaman, J.Rissanen, A.Saastamoinen, J.C.Thomas

Precision half-life and Q -value measurement of the super-allowed β emitter 30S

RADIOACTIVITY 30S(EC) [from Ni2P(p, X), E=35 MeV]; measured cyclotron frequency ratio, Eβ, Iβ, Eγ, Iγ; deduced Q-value, T1/2 and uncertainties. JYFLTRAP Penning trap setup.

doi: 10.1140/epja/i2011-11040-5
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2010AC01      J.Phys.(London) G37, 045103 (2010)

N.L.Achouri, J.C.Angelique, G.Ban, B.Bastin, B.Blank, S.Dean, P.Dendooven, J.Giovinazzo, S.Grevy, K.Jungmann, B.Laurent, E.Lienard, O.Naviliat-Cuncic, N.A.Orr, A.Rogachevskiy, M.Sohani, E.Traykov, H.Wilschut

The β-γ decay of 21Na

RADIOACTIVITY 21Na(β+) [from 1H(21Ne, n), E=30 Mev/nucleon]; measured TOF, Eγ, Iγ; deduced Gamow-Teller branching ratios.

RADIOACTIVITY 22Mg(EC); measured TOF, Eγ, Iγ; deduced Gamow-Teller branching ratios.

doi: 10.1088/0954-3899/37/4/045103
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2010AD03      Phys.Rev. C 81, 024311 (2010)

N.Adimi, R.Dominguez-Reyes, M.Alcorta, A.Bey, B.Blank, M.J.G.Borge, F.de Oliveira Santos, C.Dossat, H.O.U.Fynbo, J.Giovinazzo, H.H.Knudsen, M.Madurga, I.Matea, A.Perea, K.Summerer, O.Tengblad, J.C.Thomas

Detailed β-decay study of 33Ar

RADIOACTIVITY 33Ar(β+), (EC), (β+p), (ECp); measured Eγ, Ep, Ip, and βp-, γp-coin. 33Cl; deduced levels, J, π, IAS, logft, and B(GT). 32S; deduced levels, J, π, and proton feedings. Comparison with USD shell-model calculations. Barrier penetration calculations for spin assignments.

doi: 10.1103/PhysRevC.81.024311
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2010BL09      Eur.Phys.J. A 44, 363 (2010)

B.Blank, A.Bey, I.Matea, J.Souin, L.Audirac, M.J.G.Borge, G.Canchel, P.Delahaye, F.Delalee, C.-E.Demonchy, R.Dominguez-Reyes, L.M.Fraile, J.Giovinazzo, Tran Trong Hui, J.Huikari, D.Lunney, F.Munoz, J.-L.Pedroza, C.Plaisir, L.Serani, S.Sturm, O.Tengblad, F.Wenander

Precise half-life measurements for 38Ca and 39Ca

RADIOACTIVITY 38Ca(β+), 39Ca(β+)[from Ti(p, X), E=1.4 GeV]; measured CaF molecule ToF, Eβ, Iβ(t); deduced T1/2. Comparison with other results.

doi: 10.1140/epja/i2010-10958-2
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2009FU15      Int.J.Mod.Phys. E18, 2134 (2009)

Y.Fujita, B.Rubio, W.Gelletly, B.Blank, T.Adachi, A.Algora, P.Ascher, R.B.Cakirli, G.De France, J.Giovinazzo, S.Grevy, H.Fujita, L.Kucuk, M.Marques, F.Molina, Y.Oktem, F.De Oliveira Santos, L.Perrot, R.Raabe, P.C.Srivastava, G.Susoy, A.Tamii, H.-C.Thomas

Nuclear weak response from the combined study of β-decay and charge-exchange reaction

NUCLEAR REACTIONS 50Cr, 58Ni, 56Fe(3He, t), E=140 MeV/nucleon; measured reaction products; deduced GT transition strengths.

RADIOACTIVITY 58Zn(β+), (EC) [from Ni(64Zn, X)]; measured Eγ, Iγ; deduced T1/2.

doi: 10.1142/S0218301309014433
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2009KU19      Phys.Rev. C 80, 035502 (2009)

T.Kurtukian Nieto, J.Souin, T.Eronen, L.Audirac, J.Aysto, B.Blank, V.-V.Elomaa, J.Giovinazzo, U.Hager, J.Hakala, A.Jokinen, A.Kankainen, P.Karvonen, T.Kessler, I.D.Moore, H.Penttila, S.Rahaman, M.Reponen, S.Rinta-Antila, J.Rissanen, A.Saastamoinen, T.Sonoda, C.Weber

Half-life, branching-ratio, and Q-value measurement for the O+ → O+ β+ emitter 42Ti

RADIOACTIVITY 42Ti(EC); measured Eγ, βγ-coin, half-life, branching ratio, Q value from measured mass differences; deduced logft value for 0+ to 0+ superallowed β transition.

ATOMIC MASSES 42Ti, 42Sc, 42mSc, 42Ca; measured mass differences using JYFLTRAP Penning-trap spectrometer; deduced Q values.

doi: 10.1103/PhysRevC.80.035502
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2009KU28      Nucl.Phys. A827, 587c (2009)

T.Kurtukian-Nieto, J.Benlliure, K.-H.Schmidt, L.Audouin, F.Becker, B.Blank, I.N.Borzov, E.Casarejos, M.Fernandez-Ordonez, J.Giovinazzo, D.Henzlova, B.Jurado, K.Langanke, G.Martinez-Pinedo, J.Pereira, F.Rejmund, O.Yordanov

Recent progress in measuring β half-lives of nuclei approaching the r-process waiting point A = 195

RADIOACTIVITY 194,195,196Re, 199,200Os, 198,199,200Ir(β-) [from Be(208Pb, X), E=1 GeV/nucleon]; measured T1/2. Comparison with two QRPA models.

doi: 10.1016/j.nuclphysa.2009.05.129
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2008BE21      Eur.Phys.J. A 36, 121 (2008)

A.Bey, B.Blank, G.Canchel, C.Dossat, J.Giovinazzo, I.Matea, V.-V.Elomaa, T.Eronen, U.Hager, J.Hakala, A.Jokinen, A.Kankainen, I.Moore, H.Penttila, S.Rinta-Antila, A.Saastamoinen, T.Sonoda, J.Aysto, N.Adimi, G.de France, J.-C.Thomas, G.Voltolini, T.Chaventre

Beta-decay branching ratios of 62Ga

RADIOACTIVITY 62Ga(β+) [from 64Zn(p, X), E=48 MeV]; measured Eγ, Iγ, Eβ, Iβ, γγ-, βγ-coin; deduced absolute γ-ray transition probabilities and β-decay branching ratio.

doi: 10.1140/epja/i2008-10578-5
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2008GI10      Int.J.Mod.Phys. E17, 2264 (2008)

J.Giovinazzo

Two-proton radioactivity: tracking 2He emission

doi: 10.1142/S0218301308011458
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2008MA39      Eur.Phys.J. A 37, 151 (2008); Erratum Eur.Phys.J. A 38, 247 (2008)

I.Matea, J.Souin, J.Aysto, B.Blank, P.Delahaye, V.-V.Elomaa, T.Eronen, J.Giovinazzo, U.Hager, J.Hakala, J.Huikari, A.Jokinen, A.Kankainen, I.D.Moore, J.-L.Pedroza, S.Rahaman, J.Rissanen, J.Ronkainen, A.Saastamoinen, T.Sonoda, C.Weber

Precise half-life measurement of the 26Si ground state

RADIOACTIVITY 26Si(β+); measured Eγ, Iγ, Eβ, Iβ, βγ-coin, T1/2, β-branching ratio using the IGISOL technique with the JYFLTRAP facility. Comparison with other results.

doi: 10.1140/epja/i2008-10623-5
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2007BL09      Eur.Phys.J. A 31, 267 (2007)

B.Blank, C.Borcea, G.Canchel, C.-E.Demonchy, F.de Oliveira Santos, C.Dossat, J.Giovinazzo, S.Grevy, L.Hay, P.Hellmuth, S.Leblanc, I.Matea, J.-L.Pedroza, L.Perrot, J.Pibernat, A.Rebii, L.Serani, J.C.Thomas

Production cross-sections of proton-rich 70Ge fragments and the decay of 57Zn and 61Ge

NUCLEAR REACTIONS Ni(70Ge, X)55Cu/56Cu/57Cu/58Cu/56Zn/57Zn/58Zn/59Zn/60Zn/60Ga/61Ga/60Ge/61Ge/62Ge/63Ge/64As, E=71.6 MeV/nucleon; measured production σ. Comparison with model predictions.

RADIOACTIVITY 57Zn, 61Ge(β+p) [from Ni(70Ge, X)]; measured β-delayed proton spectra, T1/2.

doi: 10.1140/epja/i2006-10236-0
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2007DO17      Nucl.Phys. A792, 18 (2007)

C.Dossat, N.Adimi, F.Aksouh, F.Becker, A.Bey, B.Blank, C.Borcea, R.Borcea, A.Boston, M.Caamano, G.Canchel, M.Chartier, D.Cortina, S.Czajkowski, G.de France, F.de Oliveira Santos, A.Fleury, G.Georgiev, J.Giovinazzo, S.Grevy, R.Grzywacz, M.Hellstrom, M.Honma, Z.Janas, D.Karamanis, J.Kurcewicz, M.Lewitowicz, M.J.Lopez Jimenez, C.Mazzocchi, I.Matea, V.Maslov, P.Mayet, C.Moore, M.Pfutzner, M.S.Pravikoff, M.Stanoiu, I.Stefan, J.C.Thomas

The decay of proton-rich nuclei in the mass A = 36-56 region

NUCLEAR REACTIONS Ni(58Ni, X), E=74.5 MeV/nucleon; measured fragments isotopic yields.

RADIOACTIVITY 36,37Ca, 39,40,41Ti, 43V, 42,43,44,45Cr, 46,47Mn, 46,47,48,49Fe, 50,51Co, 49,50,51,52,53Ni, 55Cu, 55,56Zn(β+), (EC), (β+p) [from Ni(58Ni, X)]; measured T1/2, β-delayed proton and γ spectra, branching ratios. 43,45Cr, 46Mn, 46,47,48Fe, 50Co, 50,51,52,53Ni deduced levels. Two-proton decay observed. Comparison with model predictions.

doi: 10.1016/j.nuclphysa.2007.05.004
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2007GI10      Phys.Rev.Lett. 99, 102501 (2007)

J.Giovinazzo, B.Blank, C.Borcea, G.Canchel, J.-C.Dalouzy, C.E.Demonchy, F.de Oliveira Santos, C.Dossat, S.Grevy, L.Hay, J.Huikari, S.Leblanc, I.Matea, J.-L.Pedroza, L.Perrot, J.Pibernat, L.Serani, C.Stodel, J.-C.Thomas

First Direct Observation of Two Protons in the Decay of 45Fe with a Time-Projection Chamber

RADIOACTIVITY 45Fe(2p), 43Cr(β+); measured direct and β-delayed proton energies, T1/2.

doi: 10.1103/PhysRevLett.99.102501
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2006AC04      Eur.Phys.J. A 27, 287 (2006)

N.L.Achouri, F.de Oliveira Santos, M.Lewitowicz, B.Blank, J.Aysto, G.Canchel, S.Czajkowski, P.Dendooven, A.Emsallem, J.Giovinazzo, N.Guillet, A.Jokinen, A.M.Laird, C.Longour, K.Perajarvi, N.Smirnova, M.Stanoiu, J.-C.Thomas

The β-decay of 22Al

RADIOACTIVITY 22Al(β+), (β+p), (β+2p), (β+α) [from 36Ar fragmentation]; measured β-delayed Eα, Eγ, Ep, T1/2; deduced mass excess. 22Mg deduced levels, J, π. 22Al deduced ground-state J, π. Comparison with shell model predictions.

doi: 10.1140/epja/i2005-10274-0
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2006ER03      Phys.Lett. B 636, 191 (2006)

T.Eronen, V.Elomaa, U.Hager, J.Hakala, A.Jokinen, A.Kankainen, I.Moore, H.Penttila, S.Rahaman, S.Rinta-Antila, A.Saastamoinen, T.Sonoda, J.Aysto, A.Bey, B.Blank, G.Canchel, C.Dossat, J.Giovinazzo, I.Matea, N.Adimi

Q-value of the superallowed β decay of 62Ga

ATOMIC MASSES 62Ga, 62Zn, 62Cu; measured masses. 62Ga deduced Q(EC). Penning trap mass spectrometer.

doi: 10.1016/j.physletb.2006.03.062
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2005BL15      Phys.Rev.Lett. 94, 232501 (2005); Erratum Phys.Rev.Lett. 94, 249901 (2005)

B.Blank, A.Bey, G.Canchel, C.Dossat, A.Fleury, J.Giovinazzo, I.Matea, N.Adimi, F.De Oliveira, I.Stefan, G.Georgiev, S.Grevy, J.C.Thomas, C.Borcea, D.Cortina, M.Caamano, M.Stanoiu, F.Aksouh, B.A.Brown, F.C.Barker, W.A.Richter

First Observation of 54Zn and its Decay by Two-Proton Emission

NUCLEAR REACTIONS Ni(58Ni, X), E=74.5 MeV/nucleon; measured fragment yields; deduced evidence for 54Zn.

RADIOACTIVITY 54Zn(2p) [from Ni(58Ni, X)]; measured Ep, T1/2, two-proton decay branching ratio. Comparison with model predictions.

doi: 10.1103/PhysRevLett.94.232501
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2005BL31      Eur.Phys.J. A 25, Supplement 1, 169 (2005)

B.Blank, N.Adimi, A.Bey, G.Canchel, C.Dossat, A.Fleury, J.Giovinazzo, I.Matea, F.De Oliveira, I.Stefan, G.Georgiev, S.Grevy, J.C.Thomas, C.Borcea, D.Cortina, M.Caamano, M.Stanoiu, F.Aksouh

First observation of 54Zn and its decay by two-proton emission

RADIOACTIVITY 45Fe, 48Ni, 54Zn(2p) [from Ni(58Ni, X)]; measured proton spectra, T1/2. Comparison with theory.

doi: 10.1140/epjad/i2005-06-012-6
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2005CA02      Eur.Phys.J. A 23, 201 (2005)

M.Caamano, P.M.Walker, P.H.Regan, M.Pfutzner, Zs.Podolyak, J.Gerl, M.Hellstrom, P.Mayet, M.N.Mineva, A.Aprahamian, J.Benlliure, A.M.Bruce, P.A.Butler, D.Cortina Gil, D.M.Cullen, J.Doring, T.Enqvist, C.Fox, J.Garces Narro, H.Geissel, W.Gelletly, J.Giovinazzo, M.Gorska, H.Grawe, R.Grzywacz, A.Kleinbohl, W.Korten, M.Lewitowicz, R.Lucas, H.Mach, C.D.O'Leary, F.De Oliveira, C.J.Pearson, F.Rejmund, M.Rejmund, M.Sawicka, H.Schaffner, C.Schlegel, K.Schmidt, K.-H.Schmidt, P.D.Stevenson, Ch.Theisen, F.Vives, D.D.Warner, C.Wheldon, H.J.Wollersheim, S.Wooding, F.Xu, O.Yordanov

Isomers in neutron-rich A ≈ 190 nuclides from 208Pb fragmentation

NUCLEAR REACTIONS Be(208Pb, X), E=1 GeV/nucleon; measured fragments isotopic yields, delayed Eγ, γγ-, (particle)γ-coin; deduced isomer production ratios.

RADIOACTIVITY 188Ta, 190W, 192,193Re, 195Os, 197,198Ir, 200,201,202Pt, 203Au(IT) [from Be(208Pb, X)]; measured Eγ, Iγ, γγ-coin, T1/2. 188Ta, 190W, 192,193Re, 195Os, 197,198Ir, 200,201,202Pt, 203Au deduced transitions. 190W, 200,201,202Pt deduced levels, J, π. 174,175Er, 185Hf, 191,194Re, 199Ir(IT) [from Be(208Pb, X)]; measured Eγ, Iγ.

doi: 10.1140/epja/i2004-10079-7
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2005CA06      Eur.Phys.J. A 23, 409 (2005)

G.Canchel, B.Blank, M.Chartier, F.Delalee, P.Dendooven, C.Dossat, J.Giovinazzo, J.Huikari, A.S.Lalleman, M.J.Lopez Jimenez, V.Madec, J.L.Pedroza, H.Penttila, J.C.Thomas

Precision measurement of the half-life and the decay branches of 62Ga

RADIOACTIVITY 62Ga(EC) [from 64Zn(p, 3n)]; measured Eγ, Iγ, βγ-coin, T1/2; deduced branching ratios. 62Zn deduced levels, β-feeding intensities.

doi: 10.1140/epja/i2004-10110-1
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2005DO20      Phys.Rev. C 72, 054315 (2005)

C.Dossat, A.Bey, B.Blank, G.Canchel, A.Fleury, J.Giovinazzo, I.Matea, F.de Oliveira Santos, G.Georgiev, S.Grevy, I.Stefan, J.C.Thomas, N.Adimi, C.Borcea, D.Cortina Gil, M.Caamano, M.Stanoiu, F.Aksouh, B.A.Brown, L.V.Grigorenko

Two-proton radioactivity studies with 45Fe and 48Ni

NUCLEAR REACTIONS Ni(58Ni, X), E=74.5 MeV/nucleon; measured fragments isotopic yields; deduced evidence for 48Ni, 45Fe.

RADIOACTIVITY 45Fe(2p) [from Ni(58Ni, X)]; measured Ep, T1/2, branching ratio. 48Ni; measured decay energy, T1/2; deduced probable two-proton decay. Comparisons with model predictions.

doi: 10.1103/PhysRevC.72.054315
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2005GI15      J.Phys.(London) G31, S1509 (2005)

J.Giovinazzo

The two-proton radioactivity in the A ∼ 50 mass region

RADIOACTIVITY 45Fe, 54Zn(p), (2p) [from Ni(58Ni, X)]; measured proton spectra, T1/2.

NUCLEAR REACTIONS Ni(58Ni, X), E=75 MeV/nucleon; measured fragments isotopic yields; deduced evidence for 48Ni.

doi: 10.1088/0954-3899/31/10/022
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2005MA86      Phys.Rev. C 72, 044314 (2005); Erratum Phys.Rev. C 76, 059902 (2007)

F.Marechal, D.L.Balabanski, D.Borremans, J.-M.Daugas, F.de Oliveira Santos, P.Dessagne, G.Georgiev, J.Giovinazzo, S.Grevy, P.Himpe, C.Jollet, I.Matea, G.Neyens, F.Perrot, E.Poirier, O.Roig, M.Stanoiu, C.Stodel, J.-C.Thomas, K.Turzo, D.Yordanov, E.Caurier, F.Nowacki, A.Poves

β decay of 31Mg: Extending the "island of inversion"

RADIOACTIVITY 31Mg(β-) [from Be(36S, X)]; measured Eγ, Iγ, βγ-coin, T1/2; deduced log ft. 31Al deduced levels, feeding intensities. 31Mg deduced ground-state intruder configuration.

doi: 10.1103/PhysRevC.72.044314
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2004BL05      Nucl.Phys. A734, 303 (2004)

B.Blank, J.Giovinazzo, M.Pfutzner, Y.Blumenfeld, T.Zerguerras

Two-proton radioactivity - a curiosity of Nature?

NUCLEAR REACTIONS Be(17F, 2p15O), E not given; measured invariant mass spectrum, angular correlations. 17F deduced possible correlated two-proton decay of excited state.

RADIOACTIVITY 45Fe(2p) [from 58Ni fragmentation]; measured two-proton decay Q-value, T1/2.

doi: 10.1016/j.nuclphysa.2004.01.054
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2004DE24      Eur.Phys.J. A 20, 405 (2004)

Ph.Dessagne, M.J.G.Borge, J.Giovinazzo, A.Huck, A.Jokinen, A.Knipper, C.Longour, G.Marguier, M.Ramdhane, V.Rauch, O.Tengblad, G.Walter, Ch.Miehe, and the ISOLDE Collaboration

The N = Z nucleus 76Sr: Gamow-Teller strength and nuclear deformation

RADIOACTIVITY 76Sr(EC), (β+), (β+p) [from Nb(p, X)]; measured Eγ, Iγ, T1/2, β-delayed Ep; deduced Gamow-Teller strength, log ft, proton branching ratio. 76Sr deduced ground-state deformation. 76Rb deduced levels, J, π, β-feeding intensities.

doi: 10.1140/epja/i2003-10171-6
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2004SA13      Eur.Phys.J. A 20, 109 (2004)

M.Sawicka, M.Pfutzner, R.Grzywacz, J.M.Daugas, I.Matea, M.Lewitowicz, H.Grawe, F.Becker, G.Belier, C.Bingham, R.Borcea, E.Bouchez, A.Buta, E.Dragulescu, J.E.Sauvestre, G.Georgiev, J.Giovinazzo, F.Hammache, F.Ibrahim, P.Mayet, V.Meot, F.Negoita, F.de Oliveira Santos, O.Perru, O.Roig, K.P.Rykaczewski, M.G.Saint-Laurent, O.Sorlin, M.Stanoiu, I.Stefan, C.Stodel, C.Theisen, D.Verney

Evidence for an isomer in 76Ni

NUCLEAR REACTIONS Ta(86Kr, X)71Ni/72Ni/73Ni/75Ni/76Ni, E=58 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin. 76Ni deduced transitions, isomer T1/2.

doi: 10.1140/epja/i2002-10333-0
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2004SA59      Eur.Phys.J. A 22, 455 (2004)

M.Sawicka, I.Matea, H.Grawe, R.Grzywacz, M.Pfutzner, M.Lewitowicz, J.M.Daugas, B.A.Brown, A.Lisetskiy, F.Becker, G.Belier, C.Bingham, R.Borcea, E.Bouchez, A.Buta, E.Dragulescu, G.de France, G.Georgiev, J.Giovinazzo, F.Hammache, F.Ibrahim, P.Mayet, V.Meot, F.Negoita, F.De Oliveira-Santos, O.Perru, O.Roig, K.Rykaczewski, M.G.Saint-Laurent, J.E.Sauvestre, O.Sorlin, M.Stanoiu, I.Stefan, C.Stodel, Ch.Theisen, D.Verney, J.Zylicz

Beta-decay of 71Co and 73Co

RADIOACTIVITY 71,73Co(β-) [from Ta(86Kr, X)]; measured Eγ, Iγ, βγ-coin, T1/2. 71,73Ni deduced levels, J, π. Comparison with model predictions.

doi: 10.1140/epja/i2004-10047-3
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2004TH09      Eur.Phys.J. A 21, 419 (2004)

J.C.Thomas, L.Achouri, J.Aysto, R.Beraud, B.Blank, G.Canchel, S.Czajkowski, P.Dendooven, A.Ensallem, J.Giovinazzo, N.Guillet, J.Honkanen, A.Jokinen, A.Laird, M.Lewitowicz, C.Longour, F.de Oliveira Santos, K.Perajarvi, M.Stanoiu

Beta-decay properties of 25Si and 26P

RADIOACTIVITY 25Si, 26P(EC) [from 12C(36Ar, X)]; measured β-delayed Eγ, Ep, T1/2; deduced log ft, Gamow-Teller strength distributions, proton-decay and two-proton decay branching ratios. 24Mg, 25Al, 26Si deduced levels, feeding intensities, mirror asymmetry parameters. Comparison with shell-model predictions.

doi: 10.1140/epja/i2003-10218-8
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2004ZE05      Eur.Phys.J. A 20, 389 (2004)

T.Zerguerras, B.Blank, Y.Blumenfeld, T.Suomijarvi, D.Beaumel, B.A.Brown, M.Chartier, M.Fallot, J.Giovinazzo, C.Jouanne, V.Lapoux, I.Lhenry-Yvon, W.Mittig, P.Roussel-Chomaz, H.Savajols, J.A.Scarpaci, A.Shrivastava, M.Thoennessen

Study of light proton-rich nuclei by complete kinematics measurements

NUCLEAR REACTIONS 9Be(18Ne, n17Ne), E=36 MeV/nucleon; 9Be(20Mg, 18NaX), (20Mg, 19NaX), E=43 MeV/nucleon; measured particle spectra, angular correlations, invariant mass following fragment proton decay. 18,19Na, 17Ne; deduced excited states proton decay features.

doi: 10.1140/epja/i2003-10176-1
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2003BL21      C.R.Physique 4, 521 (2003)

B.Blank, J.Giovinazzo, M.Pfutzner

First observation of two-proton radioactivity from an atomic nucleus

RADIOACTIVITY 45Fe(2p), (β+p) [from Be, Ni(58Ni, X)]; measured Ep, T1/2. Mass separator, comparison with model predictions.

doi: 10.1016/S1631-0705(03)00051-3
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2003GI13      Nucl.Phys. A722, 434c (2003)

J.Giovinazzo, B.Blank, C.Borcea, B.A.Brown, M.Chartier, S.Czajkowski, A.Fleury, R.Grzywacz, M.Lewitowicz, M.J.Lopez Jimenez, V.Maslov, F.de Oliveira-Santos, M.Pfutzner, M.S.Pravikoff, M.Staniou, J.-C.Thomas

Two-proton decay of 48Fe: a new type of radioactivity

RADIOACTIVITY 45Fe(2p) [from Ni(58Ni, X)]; measured Ep, T1/2, Q-value. Mass separator.

NUCLEAR REACTIONS Ni(58Ni, X), E=75 MeV/nucleon; measured fragment yields.

doi: 10.1016/S0375-9474(03)01403-9
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2003MA34      Eur.Phys.J. A 17, 519 (2003)

C.Mazzocchi, E.Badura, C.Bingham, B.Blank, M.Chartier, H.Geissel, J.Giovinazzo, E.Grodner, R.Grzywacz, M.Hellstrom, Z.Janas, J.Kurcewicz, A.S.Lalleman, I.Mukha, G.Munzenberg, M.Pfutzner, C.Plettner, E.Roeckl, K.P.Rykaczewski, K.Schmidt, R.S.Simon, M.Stanoiu, J.-C.Thomas

Beta decay of 50Ni

RADIOACTIVITY 50Ni(β+p) [from 9Be(58Ni, X)]; measured β-delayed proton spectrum, T1/2, branching ratio. Fragment separator, comparison with model predictions.

doi: 10.1140/epja/i2003-10052-0
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2003PF01      Acta Phys.Pol. B34, 2363 (2003)

M.Pfutzner, B.Blank, J.Giovinazzo, E.Badura, C.Bingham, C.Borcea, B.A.Brown, M.Chartier, S.Czajkowski, F.De Oliveira Santos, A.Fleury, H.Geissel, L.V.Grigorenko, R.Grzywacz, M.Hellstrom, Z.Janas, J.Kurcewicz, A.S.Lalleman, M.Lewitowicz, M.J.Lopez Jimenez, V.Maslov, C.Mazzocchi, I.Mukha, G.Munzenberg, C.Plettner, M.S.Pravikoff, E.Roeckl, K.P.Rykaczewski, K.Schmidt, R.S.Simon, M.Stanoiu, J.-C.Thomas

Discovery of the two-proton decay of 45Fe

RADIOACTIVITY 45Fe(2p) [from Be, Ni(58Ni, X)]; measured Ep, T1/2. Mass separator, comparison with model predictions.


2003PI03      Eur.Phys.J. A 16, 313 (2003)

I.Piqueras, M.J.G.Borge, Ph.Dessagne, J.Giovinazzo, A.Huck, A.Jokinen, A.Knipper, C.Longour, G.Marguier, M.Ramdhane, V.Rauch, O.Tengblad, G.Walter, Ch.Miehe, and the ISOLDE Collaboration

Beta-decay of the N = Z nucleus 72Kr

RADIOACTIVITY 72Kr(β+), (EC) [from Nb(p, X)]; measured Eγ, Iγ, γγ-, βγ-coin, T1/2; deduced log ft, Gamow-Teller strength distribution, β-delayed proton decay branch upper limit. 72Br deduced levels, J, π, β-feeding intensities, configurations. 73Kr(β+p); measured β-delayed proton decay branching ratio. Comparisons with model predictions.

doi: 10.1140/epja/i2002-10105-x
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2003SA40      Phys.Rev. C 68, 044304 (2003)

M.Sawicka, R.Grzywacz, I.Matea, H.Grawe, M.Pfutzner, J.M.Daugas, M.Lewitowicz, D.L.Balabanski, F.Becker, G.Belier, C.Bingham, C.Borcea, E.Bouchez, A.Buta, M.La Commara, E.Dragulescu, G.de France, G.Georgiev, J.Giovinazzo, M.Gorska, F.Hammache, M.Hass, M.Hellstrom, F.Ibrahim, Z.Janas, H.Mach, P.Mayet, V.Meot, F.Negoita, G.Neyens, F.de Oliveira Santos, R.D.Page, O.Perru, Zs.Podolyak, O.Roig, K.P.Rykaczewski, M.G.Saint-Laurent, J.E.Sauvestre, O.Sorlin, M.Stanoiu, I.Stefan, C.Stodel, Ch.Theisen, D.Verney, J.Zylicz

Low energy levels in 72Ni

RADIOACTIVITY 70,72Co(β-) [from Ta(86Kr, X)]; measured β-delayed Eγ, Iγ, βγ-coin, T1/2; deduced log ft. 70,72Ni deduced levels, J, π. Comparison with model predictions.

doi: 10.1103/PhysRevC.68.044304
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2002CH28      Nucl.Phys. A701, 433c (2002)

M.Chartier, B.Blank, S.Czajkowski, J.Giovinazzo, M.S.Pravikoff, J.-C.Thomas, G.de France, F.de Oliveira Santos, M.Lewitowicz, C.Borcea, R.Grzywacz, Z.Janas, M.Pfutzner

Discovery of Doubly-Magic 48Ni at GANIL

NUCLEAR REACTIONS Ni(58Ni, X), E=74.5 MeV/nucleon; measured fragments isotopic production σ; deduced evidence for 39Ti, 42Cr, 45Fe, 48,49Ni. 48Ni deduced T1/2 lower limit.

doi: 10.1016/S0375-9474(01)01623-2
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2002GI09      Phys.Rev.Lett. 89, 102501 (2002)

J.Giovinazzo, B.Blank, M.Chartier, S.Czajkowski, A.Fleury, M.J.Lopez Jimenez, M.S.Pravikoff, J.-C.Thomas, F.de Oliveira Santos, M.Lewitowicz, V.Maslov, M.Stanoiu, R.Grzywacz, M.Pfutzner, C.Borcea, B.A.Brown

Two-Proton Radioactivity of 45Fe

RADIOACTIVITY 45Fe(2p) [from Ni(58Ni, X)]; measured Ep, pβ-coin, T1/2. Comparison with model predictions.

NUCLEAR REACTIONS Ni(58Ni, X), E=75 MeV/nucleon; measured relative isotopic yields; deduced evidence for 45Fe.

doi: 10.1103/PhysRevLett.89.102501
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2002LO13      Phys.Rev. C66, 025803 (2002)

M.J.Lopez Jimenez, B.Blank, M.Chartier, S.Czajkowski, P.Dessagne, G.de France, J.Giovinazzo, D.Karamanis, M.Lewitowicz, V.Maslov, C.Miehe, P.H.Regan, M.Stanoiu, M.Wiescher

Half-life measurements of proton-rich 78Kr fragments

RADIOACTIVITY 53,54Co, 54,55Ni, 56,57Cu, 57,58,59Zn, 60,61,62Ga, 61,62,63Ge, 64,65,66As, 66,67Se, 70Br, 71Kr(β+), (EC) [from 78Kr fragmentation]; measured T1/2. Astrophysical implications discussed. Comparison with previous results.

doi: 10.1103/PhysRevC.66.025803
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2002PF01      Phys.Rev. C65, 064604 (2002)

M.Pfutzner, P.H.Regan, P.M.Walker, M.Caamano, J.Gerl, M.Hellstrom, P.Mayet, K.-H.Schmidt, Zs.Podolyak, M.N.Mineva, A.Aprahamian, J.Benlliure, A.M.Bruce, P.A.Butler, D.Cortina Gil, D.M.Cullen, J.Doring, T.Enqvist, C.Fox, J.Garces Narro, H.Geissel, W.Gelletly, J.Giovinazzo, M.Gorska, H.Grawe, R.Grzywacz, A.Kleinbohl, W.Korten, M.Lewitowicz, R.Lucas, H.Mach, C.D.O'Leary, F.De Oliveira, C.J.Pearson, F.Rejmund, M.Rejmund, M.Sawicka, H.Schaffner, Ch.Schlegel, K.Schmidt, Ch.Theisen, F.Vives, D.D.Warner, C.Wheldon, H.J.Wollersheim, S.Wooding

Angular Momentum Population in the Fragmentation of 208Pb at 1 GeV/nucleon

NUCLEAR REACTIONS Be(208Pb, X), E=1 GeV/nucleon; measured fragment yields, delayed Eγ, Iγ, (fragment)γ-coin; deduced isomeric ratios. 174,175,176Hf, 175,176,179,180Ta, 180,181,182W, 181,185Re deduced transitions, isomers T1/2, angular momentum distributions. Fragment separator.

doi: 10.1103/PhysRevC.65.064604
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2002PF02      Eur.Phys.J. A 14, 279 (2002)

M.Pfutzner, E.Badura, C.Bingham, B.Blank, M.Chartier, H.Geissel, J.Giovinazzo, L.V.Grigorenko, R.Grzywacz, M.Hellstrom, Z.Janas, J.Kurcewicz, A.S.Lalleman, C.Mazzocchi, I.Mukha, G.Munzenberg, C.Plettner, E.Roeckl, K.P.Rykaczewski, K.Schmidt, R.S.Simon, M.Stanoiu, J.-C.Thomas

First Evidence for the Two-Proton Decay of 45Fe

RADIOACTIVITY 45Fe(2p), (β+p) [from Be(58Ni, X), E=650 MeV/nucleon]; measured proton spectrum, (proton)γ-coin, T1/2, branching ratios, possible 2-proton separation energy. 43Cr(β+); analyzed radioactivity data; deduced ground state T1/2.

doi: 10.1140/epja/i2002-10033-9
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2002PF03      Nucl.Instrum.Methods Phys.Res. A493, 155 (2002)

M.Pfutzner, E.Badura, R.Grzywacz, Z.Janas, M.Momayezi, C.Bingham, B.Blank, M.Chartier, H.Geissel, J.Giovinazzo, M.Hellstrom, J.Kurcewicz, A.S.Lalleman, C.Mazzocchi, I.Mukha, C.Plettner, E.Roeckl, K.P.Rykaczewski, K.Schmidt, R.S.Simon, M.Stanoiu, J.C.Thomas

Charged-particle spectroscopy in the microsecond range following projectile fragmentation

NUCLEAR REACTIONS Be(58Ni, X), E=650 MeV/nucleon; measured fragment yields; deduced evidence for 48Mn, 45,49,50Fe, 51Co. Fragment separator.

RADIOACTIVITY 49Fe, 50Co(β+p) [from Be(58Ni, X)]; measured β-delayed proton spectra. 45Fe(2p) [from Be(58Ni, X)]; measured T1/2. Fragment separator.

doi: 10.1016/S0168-9002(02)01567-X
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2001CA60      Eur.Phys.J. A 12, 377 (2001)

G.Canchel, L.Achouri, J.Aysto, R.Beraud, B.Blank, E.Chabanat, S.Czajkowski, P.Dendooven, A.Emsallem, J.Giovinazzo, J.Honkanen, A.Jokinen, M.Lewitowicz, C.Longour, F.de Oliveira-Santos, K.Perajarvi, M.Staniou, J.C.Thomas

The β-Delayed One- and Two-Proton Emission of 27S

RADIOACTIVITY 27S(β+), (β+p), (β+2p) [from C(36Ar, X)]; measured Eγ, Ep, T1/2, branching ratios. Mass separator.

NUCLEAR REACTIONS C(36Ar, X)27S/26P/25Si/24Al/23Mg, E=95 MeV/nucleon; measured relative yields. Mass separator.

doi: 10.1007/s10050-001-8659-z
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2001GA24      Phys.Rev. C63, 044307 (2001)

J.Garces Narro, C.Longour, P.H.Regan, B.Blank, C.J.Pearson, M.Lewitowicz, C.Miehe, W.Gelletly, D.Appelbe, L.Axelsson, A.M.Bruce, W.N.Catford, C.Chandler, R.M.Clark, D.M.Cullen, S.Czajkowski, J.M.Daugas, P.Dessagne, A.Fleury, L.Frankland, J.Giovinazzo, B.Greenhalgh, R.Grzywacz, M.Harder, K.L.Jones, N.Kelsall, T.Kszczot, R.D.Page, A.T.Reed, O.Sorlin, R.Wadsworth

Fermi Superallowed β+ Decays and T = 1 Ground States of Heavy Odd-Odd N = Z Nuclei

RADIOACTIVITY 74Rb, 78Y, 82Nb, 86Tc(β+) [from 92Mo fragmentation]; measured T1/2; deduced Q(EC), log ft. Comparison with model predictions.

NUCLEAR REACTIONS Ni(92Mo, X), E=60 MeV/nucleon; measured fragments relative isotopic yields.

doi: 10.1103/PhysRevC.63.044307
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2001GI01      Eur.Phys.J. A 10, 73 (2001)

J.Giovinazzo, B.Blank, C.Borcea, M.Chartier, S.Czajkowski, G.de France, R.Grzywacz, Z.Janas, M.Lewitowicz, F.de Oliveira Santos, M.Pfutzner, M.S.Pravikoff, J.C.Thomas

Decay of Proton-Rich Nuclei between 39Tl and 49Ni

RADIOACTIVITY 39,40Ti, 42,43Cr, 46Mn, 45,46,47Fe, 49Ni(β+), (EC), (β+p) [from Ni(58Ni, X)]; measured T1/2, β-delayed proton spectra, branching ratios. 42Ti, 43V, 46Cr, 47Mn deduced levels. No two-proton decay observed. Comparisons with model predictions.

doi: 10.1007/s100500170146
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2001GI02      Nucl.Phys. A685, 127c (2001)

J.Giovinazzo, B.Blank, C.Borcea, M.Chartier, S.Czajkowski, G.de France, R.Grzywacz, Z.Janas, M.Lewitowicz, F.de Oliveira Santos, M.Pfutzner, M.S.Pravikoff, J.C.Thomas

Observation of 48Ni and Decay of Very Exotic Nuclei in this Mass Region

NUCLEAR REACTIONS Ni(58Ni, X), E=74.5 MeV/nucleon; measured fragments isotopic yields; deduced evidence for 48,49Ni, 45Fe, 42Cr, 39Ti.

RADIOACTIVITY 39,40Ti, 42,43Cr, 46Mn, 45,46,47Fe, 49Ni(β+), (EC) [from Ni(58Ni, X)]; measured T1/2. Comparisons with model predictions, previous measurements.

doi: 10.1016/S0375-9474(01)00534-6
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2001GI10      Eur.Phys.J. A 11, 247 (2001)

J.Giovinazzo, B.Blank, C.Borcea, M.Chartier, S.Czajkowski, G.de France, R.Grzywacz, Z.Janas, M.Lewitowicz, F.de Oliveira Santos, M.Pfutzner, M.S.Pravikoff, J.C.Thomas

First Observation of 55, 56Zn

NUCLEAR REACTIONS Ni(58Ni, X)55Zn/56Zn, E=74.5 MeV/nucleon; measured σ. Discussed possible decay modes.

doi: 10.1007/s100500170060
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2001KA51      Nucl.Sci.Eng. 139, 282 (2001)

D.Karamanis, M.Petit, S.Andriamonje, G.Barreau, M.Bercion, A.Billebaud, B.Blank, S.Czajkowski, R.Del Moral, J.Giovinazzo, V.Lacoste, C.Marchand, L.Perrot, M.Pravikoff, J.C.Thomas

Neutron Radiative Capture Cross Section of 232Th in the Energy Range from 0.06 to 2 MeV

NUCLEAR REACTIONS 232Th(n, γ), E=0.06-2 MeV; measured σ. Activation technique, comparison with previous results.

doi: 10.13182/NSE01-A2238
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset22663.


2000BL01      Phys.Rev.Lett. 84, 1116 (2000)

B.Blank, M.Chartier, S.Czajkowski, J.Giovinazzo, M.S.Pravikoff, J.-C.Thomas, G.de France, F.de Oliveira Santos, M.Lewitowicz, C.Borcea, R.Grzywacz, Z.Janas, M.Pfutzner

Discovery of Doubly Magic 48Ni

NUCLEAR REACTIONS Ni(58Ni, X)48Ni/49Ni/45Fe/42Cr, E=74.5 MeV/nucleon; measured production σ. 48Ni deduced T1/2 lower limit. Isotope separator, comparison with model predictions.

doi: 10.1103/PhysRevLett.84.1116
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2000CH07      Phys.Rev. C61, 044309 (2000)

C.Chandler, P.H.Regan, B.Blank, C.J.Pearson, A.M.Bruce, W.N.Catford, N.Curtis, S.Czajkowski, Ph.Dessagne, A.Fleury, W.Gelletly, J.Giovinazzo, R.Grzywacz, Z.Janas, M.Lewitowicz, C.Marchand, Ch.Miehe, N.A.Orr, R.D.Page, M.S.Pravikoff, A.T.Reed, M.G.Saint-Laurent, S.M.Vincent, R.Wadsworth, D.D.Warner, J.S.Winfield, F.Xu

Observation of Isomeric States in Neutron Deficient A ∼ 80 Nuclei following the Projectile Fragmentation of 92Mo

NUCLEAR REACTIONS Ni(92Mo, X), E=60 MeV/nucleon; measured fragments isotopic yields, Eγ, Iγ(t), (fragment)γ-coin; deduced isomer ratios.

RADIOACTIVITY 67Ge, 69,71Se, 76Rb, 73,74Kr, 80Y, 86Tc(IT) [from Ni(92Mo, X)]; measured Eγ, Iγ, T1/2. 80Y, 84Nb, 73Kr deduced levels, J, π, configurations. Cranked mean-field, TRS calculations.

doi: 10.1103/PhysRevC.61.044309
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Data from this article have been entered in the XUNDL database. For more information, click here.


2000GI11      Nucl.Phys. A674, 394 (2000)

J.Giovinazzo, P.Dessagne, C.Miehe, and the ISOLDE Collaboration

The Delayed Proton Emission in the A ≈ 65-77 Mass Region, Statistical Aspects and Structure Effects

RADIOACTIVITY 65Ge, 69Se, 73Kr, 77Sr(β+p); measured β-delayed proton spectra, (proton)γ-coin. 65Ga, 69As, 73Br, 77Rb deduced level density parameters, decay widths. Statistical analysis.

doi: 10.1016/S0375-9474(00)00142-1
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2000PO26      Phys.Lett. 491B, 225 (2000)

Zs.Podolyak, P.H.Regan, M.Pfutzner, J.Gerl, M.Hellstrom, M.Caamano, P.Mayet, Ch.Schlegel, A.Aprahamian, J.Benlliure, A.M.Bruce, P.A.Butler, D.Cortina Gil, D.M.Cullen, J.Doring, T.Enqvist, F.Rejmund, C.Fox, J.Garces Narro, H.Geissel, W.Gelletly, J.Giovinazzo, M.Gorska, H.Grawe, R.Grzywacz, A.Kleinbohl, W.Korten, M.Lewitowicz, R.Lucas, H.Mach, M.Mineva, C.D.O'Leary, F.De Oliveira, C.J.Pearson, M.Rejmund, M.Sawicka, H.Schaffner, K.Schmidt, Ch.Theisen, P.M.Walker, D.D.Warner, C.Wheldon, H.J.Wollersheim, S.C.Wooding, F.R.Xu

Isomer Spectroscopy of Neutron Rich 190W116

NUCLEAR REACTIONS Be(208Pb, X), E=1 GeV/nucleon; measured fragment isotopic yields, delayed Eγ, Iγ, γγ-, (fragment)γ-coin. 190W deduced levels, J, π, isomer T1/2. Fragment separator. Cranked mean-field calculations, comparisons with neighboring nuclides.

RADIOACTIVITY 190W(IT) [from Be(208Pb, X)]; measured Eγ, Iγ, γγ-coin. 190W deduced levels, J, π, isomer T1/2. Cranked mean-field calculations, comparisons with neighboring nuclides.

doi: 10.1016/S0370-2693(00)01051-0
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Data from this article have been entered in the XUNDL database. For more information, click here.


2000SC32      Phys.Scr. T88, 72 (2000)

C.Schlegel, P.H.Regan, M.Pfutzner, J.Gerl, M.Hellstrom, Zs.Podolyak, M.Caamano, P.Mayet, A.Aprahamian, J.Benlliure, A.M.Bruce, P.A.Butler, D.Cortina Gil, D.M.Cullen, J.Doring, T.Enqvist, F.Farget, C.Fox, J.Garces Narro, W.Gelletly, J.Giovinazzo, M.Gorska, H.Grawe, R.Grzywacz, A.Kleinbohl, W.Korten, M.Lewitowicz, R.Lucas, H.Mach, M.Mineva, C.O'Leary, F.De Oliveira, C.J.Pearson, M.Rejmund, M.Sawicka, H.Schaffner, K.Schmidt, Ch.Theisen, P.M.Walker, D.D.Warner, C.Wheldon, H.J.Wollersheim, S.Wooding, F.Xu

K-Isomers in Very Neutron-Rich Nuclei Around Mass 180

NUCLEAR REACTIONS 208Pb(208Pb, X), E=1 GeV/nucleon; measured Eγ, Iγ(t), (fragment)γ-coin. 179,190W deduced levels, J, π, isomeric states. Fragment separator.

doi: 10.1238/Physica.Topical.088a00072
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Data from this article have been entered in the XUNDL database. For more information, click here.


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