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NSR database version of May 24, 2024.

Search: Author = J.Piot

Found 47 matches.

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2024LE05      Phys.Rev.Lett. 132, 132501 (2024)

M.Le Joubioux, H.Savajols, W.Mittig, X.Flechard, L.Hayen, Yu.E.Penionzhkevich, D.Ackermann, C.Borcea, L.Caceres, P.Delahaye, F.Didierjean, S.Franchoo, A.Grillet, B.Jacquot, M.Lebois, X.Ledoux, N.Lecesne, E.Lienard, S.Lukyanov, O.Naviliat-Cuncic, J.Piot, A.Singh, V.Smirnov, C.Stodel, D.Testov, D.Thisse, J.C.Thomas, D.Verney

Search for a Neutron Dark Decay in 6He

RADIOACTIVITY 6He(α), (2n), (n); measured decay products, En, In. 1NN; deduced a coincident neutron signal resulted in an upper limit on a dark decay branching ratio, an upper bound on a dark neutron branching ratio. The Grand Accelerateur National d'Ions Lourds (GANIL) SPIRAL1 facility.

doi: 10.1103/PhysRevLett.132.132501
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2023LO09      Phys.Lett. B 845, 138149 (2023)

J.Lois-Fuentes, B.Fernandez-Dominguez, X.Pereira-Lopez, F.Delaunay, W.N.Catford, A.Matta, N.A.Orr, T.Duguet, T.Otsuka, V.Soma, O.Sorlin, T.Suzuki, N.L.Achouri, M.Assie, S.Bailey, B.Bastin, Y.Blumenfeld, R.Borcea, M.Caamano, L.Caceres, E.Clement, A.Corsi, N.Curtis, Q.Deshayes, F.Farget, M.Fisichella, G.de France, S.Franchoo, M.Freer, J.Gibelin, A.Gillibert, G.F.Grinyer, F.Hammache, O.Kamalou, A.Knapton, Tz.Kokalova, V.Lapoux, B.Le Crom, S.Leblond, F.M.Marques, P.Morfouace, J.Pancin, L.Perrot, J.Piot, E.Pollacco, D.Ramos, D.Regueira-Castro, C.Rodriguez-Tajes, T.Roger, F.Rotaru, M.Senoville, N.de Sereville, R.Smith, M.Stanoiu, I.Stefan, C.Stodel, D.Suzuki, J.C.Thomas, N.Timofeyuk, M.Vandebrouck, J.Walshe, C.Wheldon

Cross-shell states in 15C: A test for p-sd interactions

NUCLEAR REACTIONS 2H(16C, t), E=17.2 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), level energies, J, π, experimental level scheme, single-particle strength, normalised spectroscopic factors. Comparison with the ab initio self-consistent Green's function method employing the NNLOsat interaction. TIARA Silicon array, three MUST2 telescopes, GANIL.

doi: 10.1016/j.physletb.2023.138149
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2022GI05      Phys.Rev. C 105, L051301 (2022)

V.Girard Alcindor, A.Mercenne, I.Stefan, F.de Oliveira Santos, N.Michel, M.Ploszajczak, M.Assie, A.Lemasson, E.Clement, F.Flavigny, A.Matta, D.Ramos, M.Rejmund, J.Dudouet, D.Ackermann, P.Adsley, M.Assuncao, B.Bastin, D.Beaumel, G.Benzoni, R.Borcea, A.J.Boston, D.Brugnara, L.Caceres, B.Cederwall, I.Celikovic, V.Chudoba, M.Ciemala, J.Collado, F.C.L.Crespi, G.D'Agata, G.De France, F.Delaunay, C.Diget, C.Domingo-Pardo, J.Eberth, C.Fougeres, S.Franchoo, F.Galtarossa, A.Georgiadou, J.Gibelin, S.Giraud, V.Gonzalez, N.Goyal, A.Gottardo, J.Goupil, S.Grevy, V.Guimaraes, F.Hammache, L.J.Harkness-Brennan, H.Hess, N.Jovancevic, D.S.Judson Oliver, O.Kamalou, A.Kamenyero, J.Kiener, W.Korten, S.Koyama, M.Labiche, L.Lalanne, V.Lapoux, S.Leblond, A.Lefevre, C.Lenain, S.Leoni, H.Li, A.Lopez-Martens, A.Maj, I.Matea, R.Menegazzo, D.Mengoni, A.Meyer, B.Million, B.Monteagudo, P.Morfouace, J.Mrazek, M.Niikura, J.Piot, Zs.Podolyak, C.Portail, A.Pullia, B.Quintana, F.Recchia, P.Reiter, K.Rezynkina, T.Roger, J.S.Rojo, F.Rotaru, M.D.Salsac, A.M.Sanchez-Benitez, E.Sanchis, M.Senyigit, N.de Sereville, M.Siciliano, J.Simpson, D.Sohler, O.Sorlin, M.Stanoiu, C.Stodel, D.Suzuki, C.Theisen, D.Thisse, J.C.Thomas, P.Ujic, J.J.Valiente-Dobon, M.Zielinska

New narrow resonances observed in the unbound nucleus 15F

NUCLEAR REACTIONS 1H(14O, p), E=7.64 MeV/nucleon; 1H(14O, 2p), E=7.42 MeV/nucleon; measured reaction products Ep, Ip, Eγ, Iγ, protons angular distributions, pp-coin, γγ-coin, pγ-coin; deduced σ(θ), resonances properties of 14O+p system - energy, spin and width, spectroscopic factors, major amplitudes of channels. 15F; deduced levels, J, π, configurations. Data has been analyzed and interpreted in the framework of the Gamow shell model (GSM) with the coupled-channel representation (GSMCC). Beam provided by SPIRAL1 facility (GANIL). Detectors: MUST2 (telescope composed of DSSD and CsI array) for (14O, p) reaction and MUGAST array (MUST2+VAMOS magnetic spectrometer+AGATA HPGE-array).

doi: 10.1103/PhysRevC.105.L051301
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2022HA04      Eur.Phys.J. A 58, 6 (2022)

K.Hauschild, A.Lopez-Martens, R.Chakma, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayeva, A.V.Yeremin, Z.Asfari, O.Dorvaux, B.J.P.Gall, K.Kessaci, D.Ackermann, J.Piot, P.Mosat, B.Andel

Alpha-decay spectroscopy of 257Rf

RADIOACTIVITY 257Rf(α), (IT) [from 208Pb(50Ti, n), E=240-245 MeV]; measured decay products, Eα, Iα, Eγ, Iγ; deduced α-particles energies and intensities, T1/2, J, π, decay scheme. Nilsson configurations. The detectorarray GABRIELA at the FLNR, Dubna.

doi: 10.1140/epja/s10050-021-00657-8
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2022LE07      Phys.Lett. B 829, 137057 (2022)

B.Le Crom, M.Assie, Y.Blumenfeld, J.Guillot, H.Sagawa, T.Suzuki, M.Honma, N.L.Achouri, B.Bastin, R.Borcea, W.N.Catford, E.Clement, L.Caceres, M.Caamano, A.Corsi, G.De France, F.Delaunay, N.De Sereville, B.Fernandez-Dominguez, M.Fisichella, S.Franchoo, A.Georgiadou, J.Gibelin, A.Gillibert, F.Hammache, O.Kamalou, A.Knapton, V.Lapoux, S.Leblond, A.O.Macchiavelli, F.M.Marques, A.Matta, L.Menager, P.Morfouace, N.A.Orr, J.Pancin, X.Pereira-Lopez, L.Perrot, J.Piot, E.Pollacco, D.Ramos, T.Roger, F.Rotaru, A.M.Sanchez-Benitez, M.Senoville, O.Sorlin, M.Stanoiu, I.Stefan, C.Stodel, D.Suzuki, J.-C.Thomas, M.Vandebrouck

Neutron-proton pairing in the N=Z radioactive fp-shell nuclei 56Ni and 52Fe probed by pair transfer

NUCLEAR REACTIONS 1H(56Ni, 3He)54Co, E=30.5 MeV/nucleon; 1H(52Fe, 3He)50Mn, E=31.2 MeV/nucleon; measured reaction products; deduced yields, σ(θ), partial level schemes, J, π, isovector and isoscalar components of neutron-proton pairing. Comparison with with second-order distorted-wave Born approximation (DWBA) calculations. GANIL/LISE facility, MUST2 telescopes.

doi: 10.1016/j.physletb.2022.137057
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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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2021GI06      Eur.Phys.J. A 57, 93 (2021)

V.Girard Alcindor, I.Stefan, F.de Oliveira Santos, O.Sorlin, D.Ackermann, P.Adsley, J.C.Angelique, M.Assie, M.Assuncao, D.Beaumel, E.Berthoumieux, R.Borcea, L.Caceres, I.Celikovic, M.Ciemala, V.Chudoba, G.D'Agata, F.de Grancey, G.Dumitru, F.Flavigny, C.Fougeres, S.Franchoo, A.Georgiadou, N.Goyal, S.Grevy, J.Guillot, V.Guimaraes, F.Hammache, O.Kamalou, J.Kiener, S.Koyama, L.Lalanne, V.Lapoux, I.Matea, A.Matta, A.Meyer, N.Michel, P.Morfouace, J.Mrazek, F.Negoita, M.Niikura, D.Pantelica, L.Perrot, C.Petrone, J.Piot, C.Portail, T.Roger, F.Rotaru, A.M.Sanchez-Benitez, N.de Sereville, M.Stanoiu, C.Stodel, K.Subotic, D.Suzuki, V.Tatischeff, J.C.Thomas, P.Ujic, D.Verney

Probing nuclear forces beyond the nuclear drip line: the cases of 16F and 15F. A Tribute to Mahir Hussein

NUCLEAR STRUCTURE 15,16F, 16N, 15C; analyzed available data; deduced strength of the nucleon-nucleon effective interaction, the mirror symmetry of the n-p interaction.

doi: 10.1140/epja/s10050-021-00410-1
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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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2021KE10      Phys.Rev. C 104, 044609 (2021)

K.Kessaci, B.J.P.Gall, O.Dorvaux, A.Lopez-Martens, R.Chakma, K.Hauschild, M.L.Chelnokov, V.I.Chepigin, M.Forge, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.A.Kuznetsova, O.N.Malyshev, R.Mukhin, J.Piot, A.G.Popeko, Yu.A.Popov, E.A.Sokol, A.I.Svirikhin, M.S.Tezekbayev, A.V.Yeremin

Evidence of high-K isomerism in 256102No154

RADIOACTIVITY 256,256mNo(α), 256mNo(IT)[from 238U(22Ne, 4n), E=113, 116 MeV, followed by separation of evaporation residues (ERs) using the Super Heavy ELements Separator (SHELS) at the U400 cyclotron of FLNR-JINR-Dubna]; measured Eα, Iα, Eγ, Iγ, conversion electrons, (ce)γ-coin, (recoils)α-correlations, half-lives of decays of 256No and 256mNo using the GABRIELA apparatus with time-of-flight (TOF) system, a double-sided silicon strip detector (DSSD), eight silicon strip detectors, five Compton-suppressed HPGe detectors, and a clover HPGe detector. 256No; deduced level, J, π, Kπ, first evidence of an isomer in 256No, high-K isomerism, two- and four-quasiparticle Nilsson configurations; schematics of two quasiparticles states on neutron and proton single-particle levels, based on experimental sequences of states in neighboring isotones and isotopes.

doi: 10.1103/PhysRevC.104.044609
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2021LE19      Eur.Phys.J. A 57, 257 (2021)

X.Ledoux, J.C.Foy, J.E.Ducret, A.M.Frelin, D.Ramos, J.Mrazek, E.Simeckova, R.Behal, L.Caceres, V.Glagolev, B.Jacquot, A.Lemasson, J.Pancin, J.Piot, C.Stodel, M.Vandebrouck

First beams at neutrons for science

NUCLEAR REACTIONS 9Be(p, n), E=31.9 MeV; measured reaction products, En, In; deduced neutron yields. The neutrons for science facility (NFS), GANIL/SPIRAL-2 facility.

doi: 10.1140/epja/s10050-021-00565-x
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2020MA16      Phys.Rev. C 101, 044312 (2020)

S.N.T.Majola, M.A.Sithole, L.Mdletshe, D.Hartley, J.Timar, B.M.Nyako, J.M.Allmond, R.A.Bark, C.Beausang, L.Bianco, T.D.Bucher, S.P.Bvumbi, M.P.Carpenter, C.J.Chiara, N.Cooper, D.M.Cullen, D.Curien, T.S.Dinoko, B.J.P.Gall, P.E.Garrett, P.T.Greenlees, J.Hirvonen, U.Jakobsson, P.M.Jones, R.Julin, S.Juutinen, S.Ketelhut, B.V.Kheswa, F.G.Kondev, A.Korichi, W.D.Kulp, T.Lauritsen, E.A.Lawrie, L.Makhathini, P.L.Masiteng, B.Maqabuka, E.A.McCutchan, D.Miller, S.Miller, A.Minkova, L.Msebi, S.H.Mthembu, J.Ndayishimye, P.Nieminen, P.Z.Ngcobo, S.S.Ntshangase, J.N.Orce, P.Peura, P.Rahkila, N.Redon, L.L.Riedinger, M.A.Riley, D.G.Roux, P.Ruotsalainen, J.Piot, J.Saren, J.F.Sharpey-Schafer, C.Scholey, O.Shirinda, J.Simpson, J.Sorri, I.Stefanescu, S.Stolze, J.Uusitalo, X.Wang, V.Werner, J.L.Wood, C.-H.Yu, S.Zhu, G.Zimba

First candidates for γ vibrational bands built on the [505] 11/2- neutron orbital in odd-A Dy isotopes

NUCLEAR REACTIONS 155Gd(α, 2n)157Dy, E=25 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization) using the JUROGAM II array at the University of Jyvaskyla. 148Nd(12C, 5n)155Dy, E=65 MeV; 124Sn(36S, 5n)155Dy, E=165 MeV; measured Eγ, Iγ, γγ-coin using GAMMASPHERE array at Argonne National Laboratory. 155,157Dy; deduced high-spin levels, J, π, multipolarities, Kπ=0+ bands, Kπ=2+ γ-vibrational bands, configurations, alignments, B(M1)/B(E2) ratios. 157Dy; calculated neutron quasiparticle Routhians using cranked shell model (CSM). 154,156Dy; discussed first excited 0+ states in the core nuclei. Systematics of level energies versus spin for γ bands in 154,155,156,157,158Dy and 152,153,154,155,156Gd.

doi: 10.1103/PhysRevC.101.044312
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2020MO10      Acta Phys.Pol. B51, 849 (2020)

P.Mosat, S.Antalic, F.P.Hessberger, D.Ackermann, B.Andel, M.Block, Z.Kalaninova, B.Kindler, M.Laatiaoui, B.Lommel, A.K.Mistry, J.Piot, M.Vostinar

Isomeric States in 255Rf, 256Rf and 257Rf

doi: 10.5506/APhysPolB.51.849
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2020MO11      Phys.Rev. C 101, 034310 (2020)

P.Mosat, F.P.Hessberger, S.Antalic, D.Ackermann, B.Andel, M.Block, S.Hofmann, Z.Kalaninova, B.Kindler, M.Laatiaoui, B.Lommel, A.K.Mistry, J.Piot, M.Vostinar

K isomerism in 255Rf and total kinetic energy measurements for spontaneous fission of 255, 256, 258Rf

RADIOACTIVITY 255,256RF(SF)[from 207,208Pb(50Ti, 2n), E=228.8, 238.3, 239.8 MeV]; 258Db(EC)[from 209Bi(50Ti, n), E=232.6 MeV]; 258Rf(SF)[from 258Db(EC)]; measured evaporation residues (ERs) using the velocity filter SHIP at GSI, spontaneous fission events using time and position correlations, (fragment)(fragment)-coin, total kinetic energy (TKE) distributions of SF fragments, half-lives of 255,256Rf decays from ER-SF correlated events, half-life of 258Rf decay from ce-SF correlated events, Eγ, Iγ, x rays, ce, γ(ce)-coin, K-isomers and their half-lives in 255Rf from ER-ce-SF/α and ER-ce-(ce)-SF/α correlated events using the STOP and BOX silicon strip detectors, and Ge clover detector at GSI; deduced tentative bimodal fission mode. 255Rf; deduced levels, J, π, two new high-K isomers and their Nilsson configurations; proposed level schemes of the isomers.

doi: 10.1103/PhysRevC.101.034310
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2020PE15      Phys.Lett. B 811, 135939 (2020)

X.Pereira-Lopez, B.Fernandez-Dominguez, F.Delaunay, N.L.Achouri, N.A.Orr, W.N.Catford, M.Assie, S.Bailey, B.Bastin, Y.Blumenfeld, R.Borcea, M.Caamano, L.Caceres, E.Clement, A.Corsi, N.Curtis, Q.Deshayes, F.Farget, M.Fisichella, G.de France, S.Franchoo, M.Freer, J.Gibelin, A.Gillibert, G.F.Grinyer, F.Hammache, O.Kamalou, A.Knapton, T.Kokalova, V.Lapoux, J.A.Lay, B.Le Crom, S.Leblond, J.Lois-Fuentes, F.M.Marques, A.Matta, P.Morfouace, A.M.Moro, T.Otsuka, J.Pancin, L.Perrot, J.Piot, E.Pollacco, D.Ramos, C.Rodriguez-Tajes, T.Roger, F.Rotaru, M.Senoville, N.de Sereville, R.Smith, O.Sorlin, M.Stanoiu, I.Stefan, C.Stodel, D.Suzuki, T.Suzuki, J.C.Thomas, N.Timofeyuk, M.Vandebrouck, J.Walshe, C.Wheldon

Low-lying single-particle structure of 17C and the N=14 sub-shell closure

NUCLEAR REACTIONS 2H(16C, p)17C, E=17.2 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ(θ), γ-ray energies, J, π, level scheme, spectroscopic factors. Comparison with shell model and particle-core model calculations.

doi: 10.1016/j.physletb.2020.135939
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2020RA05      Phys.Rev. C 101, 034609 (2020)

D.Ramos, M.Caamano, A.Lemasson, M.Rejmund, H.Alvarez-Pol, L.Audouin, J.D.Frankland, B.Fernandez-Dominguez, E.Galiana-Baldo, J.Piot, C.Schmitt, D.Ackermann, S.Biswas, E.Clement, D.Durand, F.Farget, M.O.Fregeau, D.Galaviz, A.Heinz, A.Henriques, B.Jacquot, B.Jurado, Y.H.Kim, P.Morfouace, D.Ralet, T.Roger, P.Teubig, I.Tsekhanovich

Scission configuration of 239U from yields and kinetic information of fission fragments

NUCLEAR REACTIONS 9Be(238U, 239U)8Be, E=5.88 MeV/nucleon; measured fission fragments of 239U, α-α coin using a double-sided segmented silicon telescope SPIDER, mass and charge distribution of fission fragments, yields of fission fragment using VAMOS++ spectrometer at GANIL; deduced fragment velocity and kinetic energy, fragment neutron excess and multiplicity, average total kinetic energy of fission fragments, total excitation energy and elongation at scission. Comparison with evaluated data in ENDF/B-VIII.0, with predictions of GEF code, and with similar observables from the fission of 240Pu.

doi: 10.1103/PhysRevC.101.034609
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2020YE02      Phys.Atomic Nuclei 83, 503 (2020)

A.V.Yeremin, A.G.Popeko, O.N.Malyshev, A.V.Isaev, A.A.Kuznetsova, Yu.A.Popov, A.I.Svirikhin, E.A.Sokol, M.S.Tezekbayeva, M.L.Chelnokov, V.I.Chepigin, A.Lopez-Martens, K.Hauschild, O.Dorvaux, B.Gall, J.Piot, S.Antalic, P.Mosat, D.Tonev, E.Stefanova

Spectroscopy of the Isotopes of Transfermium Elements in Dubna: Current Status and Prospects

NUCLEAR REACTIONS 242Pu(22Ne, X)264Rf, 238U(22Ne, X)260No, 248Cm(22Ne, X)270Sg, E not given; analyzed available data; deduced opportunities.

RADIOACTIVITY 256Rf(α), (SF) [from 208Pb(50Ti, X)256Rf, E not given]; analyzed available data; deduced T1/2, branching ratios.

doi: 10.1134/S1063778820040109
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2019LO08      Phys.Lett. B 795, 271 (2019)

A.Lopez-Martens, A.V.Yeremin, M.S.Tezekbayeva, Z.Asfari, P.Brionnet, O.Dorvaux, B.Gall, K.Hauschild, D.Ackermann, L.Caceres, M.L.Chelnokov, V.I.Chepigin, M.V.Gustova, A.V.Isaev, A.V.Karpov, A.A.Kuznetsova, J.Piot, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, K.Rezynkina, H.Savajols, A.I.Svirikhin, E.A.Sokol, P.Steinegger

Measurement of proton-evaporation rates in fusion reactions leading to transfermium nuclei

NUCLEAR REACTIONS 209Bi(50Ti, X)256Db/257Db/258Db, E=255, 265, 275 MeV; measured reaction products, Eα, Iα; deduced σ.

doi: 10.1016/j.physletb.2019.06.010
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2019MI08      Nucl.Phys. A987, 337 (2019)

A.K.Mistry, J.Khuyagbaatar, F.P.Hessberger, D.Ackermann, B.Andel, S.Antalic, M.Block, P.Chhetri, F.Dechery, C.Droese, Ch.E.Dullmann, F.Giacoppo, J.Hoffmann, O.Kaleja, N.Kurz, M.Laatiaoui, L.Lens, J.Maurer, P.Mosat, J.Piot, S.Raeder, M.Vostinar, A.Yakushev, Z.Zhang

The 48Ca+181Ta reaction: Cross section studies and investigation of neutron-deficient 86 ≤ Z ≤ 93 isotopes

NUCLEAR REACTIONS 181Ta(48Ca, x)229Np, E(cm)=212, 217, 226 MeV[energies based on σ predictions by the HIVAP code]; measured xn, αxn, pxn leading to 225Np, 225U, 224Np, Evaporation Residues (ER) separated from 48Ca primary beam using the SHIP velocity filter at GSI, ToF and COMPAct Spectroscopy Set-up (COMPASS) comprising of DSSDs and SSSDs; deduced 225U, 225,226,229Np decay chains; 213Rn, 213,214,215Fr, 217,218,219Ac, 221Th, 221,222,223Pa, 225U, 225,226Np; deduced decay data, T1/2; compared with literature values; compiled production σ maxima in 3n and 4n evaporation channels from compound nuclei with Z=83-94 and projectiles 40Ar, 40,44,48Ca, 50Ti using published experimental data.

doi: 10.1016/j.nuclphysa.2019.05.003
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2019RA23      Phys.Rev.Lett. 123, 092503 (2019)

D.Ramos, M.Caamano, A.Lemasson, M.Rejmund, L.Audouin, H.Alvarez-Pol, J.D.Frankland, B.Fernandez-Dominguez, E.Galiana-Baldo, J.Piot, D.Ackermann, S.Biswas, E.Clement, D.Durand, F.Farget, M.O.Fregeau, D.Galaviz, A.Heinz, A.I.Henriques, B.Jacquot, B.Jurado, Y.H.Kim, P.Morfouace, D.Ralet, T.Roger, C.Schmitt, P.Teubig, I.Tsekhanovich

First Direct Measurement of Isotopic Fission-Fragment Yields of 239U

NUCLEAR REACTIONS 9Be(238U, 8Be)239U, E=5.88 MeV/nucleon; measured fission products, Eα, Iα; deduced isotopic fission yields of 239U.

doi: 10.1103/PhysRevLett.123.092503
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2019VO03      Eur.Phys.J. A 55, 17 (2019)

M.Vostinar, F.P.Hessberger, D.Ackermann, B.Andel, S.Antalic, M.Block, Ch.Droese, J.Even, S.Heinz, Z.Kalaninova, I.Kojouharov, M.Laatiaoui, A.K.Mistry, J.Piot, H.Savajols

Alpha-gamma decay studies of 258Db and its (grand)daughter nuclei 254Lr and 250Md

NUCLEAR REACTIONS 209Bi(50Ti, n)258Db, E=236 MeV; measured (after separation of evaporation residues with kinetic energy 50 MeV by the SHIP velocity filter) emitted particles using position sensitive Si strip detector, six SSSDs arranged in a box surrounding the stop detector, Eγ, Iγ, X-rays using HPGe clover detector, subsequent α-decay and SF events, T1/2 using time difference between evaporation residues implantation and subsequent α-decay of the isotopes, 258Db α-decays αγ-coin, αX-rays coin; deduced α, γ transitions, levels, J, π. 250Md, 254Lr, 254No; deduced α-decays, levels, γ transitions, Qα systematics for 250Md. 254Lr, 258Db; deduced levels, J, π, possible single-particle states configurations.

doi: 10.1140/epja/i2019-12701-y
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2018AC08      Nucl.Instrum.Methods Phys.Res. A907, 81 (2018)

D.Ackermann, A.K.Mistry, F.P.Hessberger, B.Andel, S.Antalic, M.Block, L.Caceres, P.Chhetri, F.Dechery, Ch.Droese, Ch.E.Dullmann, F.Giacoppo, J.Hoffmann, O.Kaleja, O.Kamalou, N.Kurz, J.Khuyagbaatar, R.R.Mandl, T.Murbock, M.Laatiaoui, J.Maurer, P.Mosat, J.Piot, S.Raeder, H.Savajols, O.Sorlin, Ch.Stodel, J.C.Thomas, M.Vostinar, P.Wieczorek, A.Yakushev, Z.Zhang

COMPASS-A COMPAct decay spectroscopy set-up

RADIOACTIVITY 253No(α) [from 207Pb(48Ca, 2n), E not given]; measured decay products, Eγ, Iγ, Eα, Iα, α-γ-coin.; deduced α-decay spectrum, branching ratios.

doi: 10.1016/j.nima.2018.01.096
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2018MI11      Acta Phys.Pol. B49, 613 (2018)

A.K.Mistry, Z.Zhang, F.P.Hessberger, D.Ackermann, B.Andel, S.Antalic, M.Block, P.Chhetri, F.Dechery, C.Droese, Ch.E.Dullmann, F.Giacoppo, J.Hoffmann, O.Kaleja, J.Khuyagbaatar, N.Kurz, M.Laatiaoui, J.Maurer, P.Mosat, J.Piot, S.Raeder, M.Vostinar, A.Yakushev

Decay Spectroscopy of Heavy Isotopes at SHIP Using the COMPASS Focal Plane Detection Set-up

RADIOACTIVITY 250Fm, 254No(α)[Nobelium from 48Ca(208Pb, 2n), E=4.55 MeV/nucleon]; measured Eα, Iα(time), αα-coin; deduced α-decay energy spectrum, Iα vs time, T1/2, αFmαNo correlation, T1/2. 222Th, 218Ra, 214Rn(α)[from α-decays 230Pu to 226U to 232Th to218Ra to 214Rn]; measured α-decay trace 222Th to 218Ra to n, Eα, Iα(time), αα-coin, αα-correlations; deduced summary of α-decay chains starting with 227U, 229Np, 229,230Pu using also literature references.

doi: 10.5506/aphyspolb.49.613
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2018MO20      Acta Phys.Pol. B49, 605 (2018)

P.Mosat, S.Antalic, F.P.Hessberger, D.Ackermann, B.Andel, M.Block, S.Hofmann, Z.Kalaninova, B.Kindler, I.Kojouharov, M.Laatiaoui, B.Lommel, A.K.Mistry, K.Nishio, J.Piot, B.Sulignano, M.Vostinar

Total Kinetic Energy Measurements for Spontaneous Fission of 255, 256, 258Rf

RADIOACTIVITY 255,256,258Rf(SF) [Rf isotopes produced in fusion-evaporation reactions]; measured fission fragments kinetic energy vs fragment implantation depth using STIP BOX coincidences and anticoincidences; deduced TKE.

doi: 10.5506/aphyspolb.49.605
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2018SV02      Bull.Rus.Acad.Sci.Phys. 82, 632 (2018)

A.I.Svirikhin, A.V.Yeremin, A.V.Andreev, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, T.M.Schneidman, B.Gall, O.Dorvaux, P.Brione, K.Hauschild, A.Lopez-Martenz, K.Rezynkina, S.Mullins, P.Jones, P.Mosat, B.Andel, Z.Kalaninova, M.Z.Asfari, N.Yoshihiro, J.Piot, E.Stefanova, D.Tonev

Short-Lived Isotopes of Transfermium Elements: Studying Characteristics of Spontaneous Fissioning

RADIOACTIVITY 256Rf, 250,252No(SF)[reaction created]; calculated formation of isotopes vs energy; compared with data (short- and long-lived isomers separately).

COMPILATION 236,238,240,242,244Pu, 242,244,246,248,250Cm, 249Bk, 246,250,252,254Cf, 244,246,256,258Fm, 250,252No, 256Rf, 258,260Md, 268Db(SF); 250,250m,252No; compiled average number of emitted neutrons accompanying spontaneous fission vs TKE; calculated spontaneous fission fragments TKE; compared with data.

doi: 10.3103/S1062873818060308
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2017FE10      Nat. Commun. 8, 14520 (2017), See 2016FE11

R.Ferrer, A.Barzakh, B.Bastin, R.Beerwerth, M.Block, P.Creemers, H.Grawe, R.de Groote, P.Delahaye, X.Flechard, S.Franchoo, S.Fritzsche, L.P.Gaffney, L.Ghys, W.Gins, C.Granados, R.Heinke, L.Hijazi, M.Huyse, T.Kron, Yu.Kudryavtsev, M.Laatiaoui, N.Lecesne, M.Loiselet, F.Lutton, I.D.Moore, Y.Martínez, E.Mogilevskiy, P.Naubereit, J.Piot, S.Raeder, S.Rothe, H.Savajols, S.Sels, V.Sonnenschein, J-C.Thomas, E.Traykov, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wendt, A.Zadvornaya

Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion

NUCLEAR MOMENTS 212,213,214,215,227Ac; measured frequencies; deduced hfs spectra, magnetic dipole and electric quadrupole moments. In-gas laser ionization and spectroscopy (IGLIS) technique.

doi: 10.1038/ncomms14520
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2017GR18      Phys.Rev. C 96, 054331 (2017)

C.Granados, P.Creemers, R.Ferrer, L.P.Gaffney, W.Gins, R.de Groote, M.Huyse, Yu.Kudryavtsev, Y.Martinez, S.Raeder, S.Sels, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wrzosek-Lipska, A.Zadvornaya, A.E.Barzakh, B.Bastin, P.Delahaye, L.Hijazi, N.Lecesne, F.Luton, J.Piot, H.Savajols, J.-C.Thomas, E.Traykov, R.Beerwerth, S.Fritzsche, M.Block, X.Flechard, S.Franchoo, L.Ghys, H.Grawe, R.Heinke, T.Kron, P.Naubereit, K.Wendt, M.Laatiaoui, I.Moore, V.Sonnenschein, M.Loiselet, E.Mogilevskiy, S.Rothe

In-gas laser ionization and spectroscopy of actinium isotopes near the N=126 closed shell

NUCLEAR MOMENTS 212,213,214,215,227Ac; measured optical hyperfine spectra by the in-gas laser ionization and spectroscopy (IGLIS) technique at the LISOL facility of Cyclotron Research Centre, Louvain-la-Neuve; deduced g factors, quadrupole moments and spins of the ground states, configurations. Comparison with large-scale nuclear-shell-model calculations. 212,213Ac produced in 197Au(20Ne, 5n), (20Ne, 4n), E=145 MeV. 214,215Ac produced in 197Au(22Ne, 5n), (22Ne, 4n), E=143 MeV.

RADIOACTIVITY 215Ac(α)[from 197Au(22Ne, 4n), E=143 MeV; measured Eα.

doi: 10.1103/PhysRevC.96.054331
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2017HA03      Phys.Rev. C 95, 014321 (2017)

D.J.Hartley, L.L.Riedinger, R.V.F.Janssens, S.N.T.Majola, M.A.Riley, J.M.Allmond, C.W.Beausang, M.P.Carpenter, C.J.Chiara, N.Cooper, D.Curien, B.J.P.Gall, P.E.Garrett, F.G.Kondev, W.D.Kulp, T.Lauritsen, E.A.McCutchan, D.Miller, S.Miller, J.Piot, N.Redon, J.F.Sharpey-Schafer, J.Simpson, I.Stefanescu, X.Wang, V.Werner, J.L.Wood, C.-H.Yu, S.Zhu, J.Dudek

Investigation of negative-parity states in 156Dy: Search for evidence of tetrahedral symmetry

NUCLEAR REACTIONS 148Nd(12C, 4n), E=65 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using GAMMASPHERE array at ATLAS-ANL facility. 156Dy; deduced high-spin levels, J, π, multipolarities, negative-parity bands, alignments, configurations, B(E2)/B(E1) ratios and octupole excitations, no evidence for tetrahedral symmetry. Systematics of Kπ=0-, 3- and Kπ=1-, 4- states in N=90 isotones 152Sm, 154Gd, 156Dy and 160Yb.

doi: 10.1103/PhysRevC.95.014321
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2016FE11      Nat. Commun. 8, 14520 (2016), See 2017FE10

R.Ferrer, A.Barzakh, B.Bastin, R.Beerwerth, M.Block, P.Creemers, H.Grawe, R.de Groote, P.Delahaye, X.Flechard, S.Franchoo, S.Fritzsche, L.P.Gaffney, L.Ghys, W.Gins, C.Granados, R.Heinke, L.Hijazi, M.Huyse, T.Kron, Yu.Kudryavtsev, M.Laatiaoui, N.Lecesne, M.Loiselet, F.Lutton, I.D.Moore, Y.Martinez, E.Mogilevskiy, P.Naubereit, J.Piot, S.Raeder, S.Rothe, H.Savajols, S.Sels, V.Sonnenschein, J-C.Thomas, E.Traykov, C.Van Beveren, P.Van den Bergh, P.Van Duppen, K.Wendt, A.Zadvornaya

Towards high-resolution laser ionization spectroscopy of the heaviest elements in supersonic gas jet expansion

NUCLEAR MOMENTS 212,213,214,215,227Ac; measured frequencies; deduced nuclear magnetic moments, electric quadrupole moments, radii. Comparison with theoretical calculations, experimental data.

doi: 10.1038/ncomms14520
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2016HE08      Eur.Phys.J. A 52, 192 (2016)

F.P.Hessberger, S.Antalic, A.K.Mistry, D.Ackermann, B.Andel, M.Block, Z.Kalaninova, B.Kindler, I.Kojouharov, M.Laatiaoui, M.Laatiaoui, B.Lommel, J.Piot, M.Vostinar

Alpha- and EC-decay measurements of 257Rf

RADIOACTIVITY 257Rf(α), (EC); measured Eα, Iα, Eγ, Iγ, γα-coin, γα delayed coin, γα correlations, conversion electrons, X-rays using Ge clover detector for γ, ADC, TAC. 257Rf deduced enhanced α-decay scheme, new transition from 70 keV level to 724 level in 253No, possible EC-decay scheme. 253No deduced levels, new E1 γ transition from 724 keV to 167 keV level. 257Lr deduced T1/2. Experimental levels in 245Pu, 247Cm, 249Cf, 251Fm, 253No, 255Rf compared with published calculations for the same nuclei (plus 257Sg).

doi: 10.1140/epja/i2016-16192-0
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2016HE15      Eur.Phys.J. A 52, 328 (2016)

F.P.Hessberger, S.Antalic, D.Ackermann, B.Andel, M.Block, Z.Kalaninova, B.Kindler, I.Kojouharov, M.Laatiaoui, B.Lommel, A.K.Mistry, J.Piot, M.Vostinar

Investigation of electron capture decay of 258Db and α decay of 258Rf

RADIOACTIVITY 258Db(EC), 258Rf(α), (SF); measured 258Db K-shell X-rays, Eγ, Iγ(t), CE, (X-ray)(CE)-coin; measured 258Rf spontaneous fission, Eα, Iα; measured delayed coin between 258Db and 258Rf decays; deduced isomeric states, T1/2; deduced 258Rf α branch decay, α branching ratio, mass excess using 254No mass excess. Halflives compared with those measured by different types of correlation, mass excess compared with systematics for e-e nuclei.

doi: 10.1140/epja/i2016-16328-2
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2016KO33      Eur.Phys.J. A 52, 293 (2016)

E.M.Kozulin, E.Vardaci, I.M.Harca, C.Schmitt, I.Itkis, G.Knyazheva, K.Novikov, A.Bogachev, S.Dmitriev, T.Loktev, F.Azaiez, I.Matea, D.Verney, A.Gottardo, O.Dorvaux, J.Piot, G.Chubarian, W.H.Trzaska, F.Hanappe, C.Borcea, S.Calinescu, C.Petrone

Challenging fission dynamics around the barrier: The case of 34S + 186W

NUCLEAR REACTIONS 186W(34S, F), E=160 MeV; measured fission-fragment-like products, Eγ, Iγ, γ multiplicity using double-arm detection system CORSET; deduced fragment mass distribution, TKE, mass-gated γ-ray energy spectra.

doi: 10.1140/epja/i2016-16293-8
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2016SV02      Phys.Part. and Nucl.Lett. 13, 480 (2016)

A.I.Svirikhin, A.V.Yeremin, I.N.Izosimov, A.V.Isaev, A.N.Kuznetsov, O.N.Malyshev, A.G.Popeko, Yu.A.Popov, E.A.Sokol, M.L.Chelnokov, V.I.Chepigin, B.Andel, M.Z.Asfari, B.Gall, N.Yoshihiro, Z.Kalaninova, S.Mullins, J.Piot, E.Stefanova, D.Tonev

Spontaneous fission of 256Rf, new data

RADIOACTIVITY 256Rf(SF)[from 208Pb(50Ti, 2n), E=237 MeV]; measured nuclei, Eα, Iα, fission fragments, En, In; deduced fission neutron multiplicity, spontaneous fission T1/2.

COMPILATION A=236-268; compiled spontaneous fission neutron multiplicity vs mass number.

doi: 10.1134/S1547477116040129
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2015MA15      Phys.Rev. C 91, 034330 (2015)

S.N.T.Majola, D.J.Hartley, L.L.Riedinger, J.F.Sharpey-Schafer, J.M.Allmond, C.Beausang, M.P.Carpenter, C.J.Chiara, N.Cooper, D.Curien, B.J.P.Gall, P.E.Garrett, R.V.F.Janssens, F.G.Kondev, W.D.Kulp, T.Lauritsen, E.A.McCutchan, D.Miller, J.Piot, N.Redon, M.A.Riley, J.Simpson, I.Stefanescu, V.Werner, X.Wang, J.L.Wood, C.-H.Yu, S.Zhu

Observation of γ vibrations and alignments built on non-ground-state configurations in 156Dy

NUCLEAR REACTIONS 148Nd(12C, 4n), E=65 MeV; measured Eγ, Iγ, multi-fold γγ-coin, γγ(θ)(DCO) using Gammasphere array at ATLAS-ANL facility. 156Dy; deduced high-spin levels, J, π, multipolarities, ground-state, γ- and S-bands, 0+ pairing isomer state, alignments, B(E2) ratios, candidate for an aligned S band built on the second 0+, second vacuum configuration. Systematics of γ band members above 15+ in 104Mo, 154,156,160,162,164Dy, 156,160,164,170Er, 180Hf, 238U.

doi: 10.1103/PhysRevC.91.034330
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2015RE01      Acta Phys.Pol. B46, 623 (2015)

K.Rezynkina, K.Hauschild, A.Lopez-Martens, O.Dorvaux, B.Gall, F.Dechery, H.Faure, A.V.Yeremin, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, Y.A.Popov, E.A.Sokol, A.I.Svirikhin, J.Piot, J.Rubert

First Experimental Tests of SHELS: a New Heavy Ion Separator at the JINR

NUCLEAR REACTIONS 208Pb(40Ar, xn)245Fm/246Fm, 164Dy(50Ti, xn)209Ra/210Ra/211Ra, E<220 MeV; measured reaction products, Eγ, Iγ; deduced yields.

doi: 10.5506/APhysPolB.46.623
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2014HE32      Phys.Rev.Lett. 113, 262505 (2014)

G.Henning, T.L.Khoo, A.Lopez-Martens, D.Seweryniak, M.Alcorta, M.Asai, B.B.Back, P.F.Bertone, D.Boilley, M.P.Carpenter, C.J.Chiara, P.Chowdhury, B.Gall, P.T.Greenlees, G.Gurdal, K.Hauschild, A.Heinz, C.R.Hoffman, R.V.F.Janssens, A.V.Karpov, B.P.Kay, F.G.Kondev, S.Lakshmi, T.Lauritsen, C.J.Lister, E.A.McCutchan, C.Nair, J.Piot, D.Potterveld, P.Reiter, A.M.Rogers, N.Rowley, S.Zhu

Fission Barrier of Superheavy Nuclei and Persistence of Shell Effects at High Spin: Cases of 254No and 220Th

NUCLEAR REACTIONS 208Pb(48Ca, 2n), E=217, 220.5 MeV; 176Yb(48Ca, 4n), E=219 MeV; measured reaction products, Eγ, Iγ; deduced fission barrier heights. Comparisons with theoretical fission barriers test theories that predict properties of superheavy elements.

doi: 10.1103/PhysRevLett.113.262505
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2014LO10      Eur.Phys.J. A 50, 132 (2014)

A.Lopez-Martens, K.Hauschild, K.Rezynkina, O.Dorvaux, B.Gall, F.Dechery, H.Faure, A.V.Yeremin, M.L.Chelnokov, V.I.Chepigin, A.V.Isaev, I.N.Izosimov, D.E.Katrasev, A.N.Kuznetsov, A.A.Kuznetsova, O.N.Malyshev, A.G.Popeko, E.A.Sokol, A.I.Svirikhin, J.Piot, J.Rubert

Fine structure in the alpha decay of 224U

doi: 10.1140/epja/i2014-14132-8
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2012GR12      Phys.Rev.Lett. 109, 012501 (2012)

P.T.Greenlees, J.Rubert, J.Piot, B.J.P.Gall, L.L.Andersson, M.Asai, Z.Asfari, D.M.Cox, F.Dechery, O.Dorvaux, T.Grahn, K.Hauschild, G.Henning, A.Herzan, R.-D.Herzberg, F.P.Hessberger, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, T.-L.Khoo, M.Leino, J.Ljungvall, A.Lopez-Martens, R.Lozeva, P.Nieminen, J.Pakarinen, P.Papadakis, E.Parr, P.Peura, P.Rahkila, S.Rinta-Antila, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, D.Seweryniak, J.Sorri, B.Sulignano, Ch.Theisen, J.Uusitalo, M.Venhart

Shell-Structure and Pairing Interaction in Superheavy Nuclei: Rotational Properties of the Z=104 Nucleus 256Rf

NUCLEAR REACTIONS 208Pb(50Ti, 2n)256Rf, E=242 MeV; measured reaction products, Eγ, Iγ; deduced σ, T1/2, rotational band structure, energies, J, π, moments of inertia. Comparison with available data, systematics.

doi: 10.1103/PhysRevLett.109.012501
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2012PI02      Acta Phys.Pol. B43, 285 (2012)

J.Piot

S3: Pushing Spectroscopy Forward

doi: 10.5506/APhysPolB.43.285
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2012PI05      Phys.Rev. C 85, 041301 (2012)

J.Piot, B.J.-P.Gall, O.Dorvaux, P.T.Greenlees, N.Rowley, L.L.Andersson, D.M.Cox, F.Dechery, T.Grahn, K.Hauschild, G.Henning, A.Herzan, R.-D.Herzberg, F.P.Hessberger, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, T.-L.Khoo, M.Leino, J.Ljungvall, A.Lopez-Martens, P.Nieminen, J.Pakarinen, P.Papadakis, E.Parr, P.Peura, P.Rahkila, S.Rinta-Antila, J.Rubert, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, D.Seweryniak, J.Sorri, B.Sulignano, J.Uusitalo

In-beam spectroscopy with intense ion beams: Evidence for a rotational structure in 246Fm

NUCLEAR REACTIONS 208Pb(40Ar, 2n), E=186 MeV; measured Eγ, Iγ, γγ-coin, Eα, α(recoil) correlations, σ using JUROGAM-II array, RITU separator, and GREAT spectrometer at JYFL facility. Recoil-decay tagging technique. 246Fm; deduced levels, J, π, rotational band, dynamic moment of inertia plot. Comparison with ground-state bands in 248,250,252,254,256Fm.

RADIOACTIVITY 246Fm(α); measured Eα, half-life.

doi: 10.1103/PhysRevC.85.041301
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2012SU22      Phys.Rev. C 86, 044318 (2012)

B.Sulignano, Ch.Theisen, J.-P.Delaroche, M.Girod, J.Ljungvall, D.Ackermann, S.Antalic, O.Dorvaux, A.Drouart, B.Gall, A.Gorgen, P.T.Greenlees, K.Hauschild, R.-D.Herzberg, F.P.Hessberger, U.Jakobsson, P.Jones, R.Julin, S.Juutinen, S.Ketelhut, W.Korten, M.Leino, A.Lopez-Martens, M.Nyman, A.Obertelli, J.Pakarinen, P.Papadakis, E.Parr, P.Peura, J.Piot, P.Rahkila, D.Rostron, P.Ruotsalainen, J.Saren, C.Scholey, J.Sorri, J.Uusitalo, M.Venhart, M.Zielinska

Investigation of high-K states in 252No

NUCLEAR REACTIONS 206Pb(48Ca, 2n), E=218 MeV; measured Eγ, Iγ, γγ-, γ(ce)-coin, E(ce), I(ce), Eα, isomer half-life using RITU separator, GREAT spectrometer and JUROGAM array at Jyvaskyla facility. 252No; deduced levels, J, π, rotational bands, configuration, high-K states, hindrance factors. 250Fm, 252No; systematics of dynamic moments of inertia and proton pairing energies. Comparison with Hartree-Fock-Bogoliubov (HFB) mean-field calculations.

RADIOACTIVITY 252No(α), (SF); measured Eα, Iα, (evaporation residues)α correlations, half-life, branching ratios for decay modes. 244Cf, 248,250Fm, 253,254No(α); measured α spectrum.

doi: 10.1103/PhysRevC.86.044318
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2011GA07      Acta Phys.Pol. B42, 597 (2011)

B.J.P.Gall, J.Piot, O.Dorvaux, K.Hauschild, A.Khouaja, M.Lamberti, A.Lopez-Martens, R.L.Lozeva, J.Pancin

Pushing the Limits of Spectroscopy with S3

doi: 10.5506/APhysPolB.42.597
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2011HA06      Acta Phys.Pol. B42, 605 (2011)

T.W.Hagen, A.Lopez-Martens, K.Hauschild, A.V.Belozerov, M.L.Chelnokov, V.I.Chepigin, D.Curien, O.Dorvaux, G.Drafta, B.Gall, A.Gorgen, M.Guttormsen, A.V.Isaev, I.N.Izosimov, A.P.Kabachenko, D.E.Katrasev, T.Kutsarova, A.N.Kuznetsov, A.C.Larsen, O.N.Malyshev, A.Minkova, S.Mullins, H.T.Nyhus, D.Pantelica, J.Piot, A.G.Popeko, S.Saro, N.Scintee, S.Siem, E.A.Sokol, A.I.Svirikhin, A.V.Yeremin

Spectroscopy of Transfermium Nuclei Using the GABRIELA Setup

COMPILATION 243Pu, 245Cm, 247Cf, 249Fm, 251No; compiled low-energy level properties for N=149 isotones.

doi: 10.5506/APhysPolB.42.605
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2011LO06      Nucl.Phys. A852, 15 (2011)

A.Lopez-Martens, T.Wiborg-Hagen, K.Hauschild, M.L.Chelnokov, V.I.Chepigin, D.Curien, O.Dorvaux, G.Drafta, B.Gall, A.Gorgen, M.Guttormsen, A.V.Isaev, I.N.Izosimov, A.P.Kabachenko, D.E.Katrasev, T.Kutsarova, A.N.Kuznetsov, A.C.Larsen, O.N.Malyshev, A.Minkova, S.Mullins, H.T.Nyhus, D.Pantelica, J.Piot, A.G.Popeko, S.Saro, N.Scintee, S.Siem, N.U.H.Syed, E.A.Sokol, A.I.Svirikhin, A.V.Yeremin

Spectroscopy of 253No and its daughters

NUCLEAR REACTIONS 207Pb(48Ca, 2n), (48Ca, 3n), E=220 MeV; measured Eα, Iα, Eγ, Iγ, E(ce), I(ce), αγ, α(ce)-coin; deduced ICCs, multipolarities, Qα. 253No, 249Fm; deduced levels, J, π, T1/2.

doi: 10.1016/j.nuclphysa.2011.01.012
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2011MO03      Acta Phys.Pol. B42, 541 (2011)

M.Moukaddam, G.Duchene, D.Beaumel, J.Burgunder, L.Caceres, E.Clement, D.Curien, F.Didierjean, B.Fernandez, Ch.Finck, F.Flavigny, S.Franchoo, J.Gibelin, S.Giron, A.Gillibert, A.Goasduff, S.Grevy, J.Guillot, F.Haas, F.Hammache, M.N.Harakeh, K.Kemper, V.Lapoux, Y.Matea, A.Matta, L.Nalpas, F.Nowacki, A.Obertelli, J.Pancin, L.Perrot, J.Piot, E.Pllumbi, R.Raabe, J.A.Scarpaci, N.de Sereville, K.Sieja, O.Sorlin, I.Stefan, C.Stoedel, J.C.Thomas

Search for 2d5/2 Neutron States in 69Ni

NUCLEAR REACTIONS 2H(68Ni, p), E=25.14 MeV/nucleon; measured reaction fragments, Eγ, Iγ; deduced excited states, shell gaps. Three-nucleon forces, shell model calculations.

doi: 10.5506/APhysPolB.42.541
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2010DO13      Phys.Rev. C 82, 067306 (2010)

Q.T.Doan, A.Vancraeyenest, O.Stezowski, D.Guinet, D.Curien, J.Dudek, Ph.Lautesse, G.Lehaut, N.Redon, Ch.Schmitt, G.Duchene, B.Gall, H.Molique, J.Piot, P.T.Greenlees, U.Jakobsson, R.Julin, S.Juutinen, P.Jones, S.Ketelhut, M.Nyman, P.Peura, P.Rahkila, A.Gozdz, K.Mazurek, N.Schunck, K.Zuber, P.Bednarczyk, A.Maj, A.Astier, I.Deloncle, D.Verney, G.de Angelis, J.Gerl

Spectroscopic information about a hypothetical tetrahedral configuration in 156Gd

NUCLEAR REACTIONS 154Sm(4He, 2n), E=27 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using JUROGAM array. 156Gd; deduced levels, J, π, bands, multipolarity, mixing ratio. Search for evidence of hypothetical tetrahedral configuration in 156Gd.

doi: 10.1103/PhysRevC.82.067306
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2009DO08      Acta Phys.Pol. B40, 725 (2009)

Q.T.Doan, D.Curien, O.Stezowski, J.Dudek, K.Mazurek, A.Gozdz, J.Piot, G.Duchene, B.Gall, H.Molique, M.Richet, P.Medina, D.Guinet, N.Redon, Ch.Schmitt, P.Jones, P.Peura, S.Ketelhut, M.Nyman, U.Jakobsson, P.T.Greenlees, R.Julin, S.Juutinen, P.Rahkila, A.Maj, K.Zuber, P.Bednarczyk, N.Schunck, J.Dobaczewski, A.Astier, I.Deloncle, D.Verney, G.de Angelis, J.Gerl

Search for Fingerprints of Tetrahedral Symmetry in 156Gd

NUCLEAR REACTIONS 154Sm(α, 2n), E=27 MeV; measured Eγ, Iγ, γγ-coin; deduced B(E2)/B(E1).


2009KE02      Phys.Rev.Lett. 102, 212501 (2009)

S.Ketelhut, P.T.Greenlees, D.Ackermann, S.Antalic, E.Clement, I.G.Darby, O.Dorvaux, A.Drouart, S.Eeckhaudt, B.J.P.Gall, A.Gorgen, T.Grahn, C.Gray-Jones, K.Hauschild, R.-D.Herzberg, F.P.Hessberger, U.Jakobsson, G.D.Jones, P.Jones, R.Julin, S.Juutinen, T.-L.Khoo, W.Korten, M.Leino, A.-P.Leppanen, J.Ljungvall, S.Moon, M.Nyman, A.Obertelli, J.Pakarinen, E.Parr, P.Papadakis, P.Peura, J.Piot, A.Pritchard, P.Rahkila, D.Rostron, P.Ruotsalainen, M.Sandzelius, J.Saren, C.Scholey, J.Sorri, A.Steer, B.Sulignano, Ch.Theisen, J.Uusitalo, M.Venhart, M.Zielinska, M.Bender, P.-H.Heenen

γ-Ray Spectroscopy at the Limits: First Observation of Rotational Bands in 255Lr

NUCLEAR REACTIONS 209Bi(48Ca, 2n), E=219, 221 MeV; Measured Eγ, Iγ, αγ-coin; Deduced rotational bands; Calculated rotational bands;251Md;255Lr; Compared theoretical and experimental results.

doi: 10.1103/PhysRevLett.102.212501
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