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NSR database version of May 24, 2024.

Search: Author = M.Breitenfeldt

Found 35 matches.

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2019BA22      Phys.Rev. C 99, 054317 (2019)

A.E.Barzakh, J.G.Cubiss, A.N.Andreyev, M.D.Seliverstov, B.Andel, S.Antalic, P.Ascher, D.Atanasov, D.Beck, J.Bieron, K.Blaum, Ch.Borgmann, M.Breitenfeldt, L.Capponi, T.E.Cocolios, T.Day Goodacre, X.Derkx, H.De Witte, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, S.Fritzsche, L.P.Gaffney, S.George, L.Ghys, F.P.Hessberger, M.Huyse, N.Imai, Z.Kalaninova, D.Kisler, U.Koster, M.Kowalska, S.Kreim, J.F.W.Lane, V.Liberati, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, S.Mitsuoka, P.L.Molkanov, Y.Nagame, D.Neidherr, K.Nishio, S.Ota, D.Pauwels, L.Popescu, D.Radulov, E.Rapisarda, J.P.Revill, M.Rosenbusch, R.E.Rossel, S.Rothe, K.Sandhu, L.Schweikhard, S.Sels, V.L.Truesdale, C.Van Beveren, P.Van den Bergh, P.Van Duppen, Y.Wakabayashi, K.D.A.Wendt, F.Wienholtz, B.W.Whitmore, G.L.Wilson, R.N.Wolf, K.Zuber

Inverse odd-even staggering in nuclear charge radii and possible octupole collectivity in 217, 218, 219At revealed by in-source laser spectroscopy

NUCLEAR MOMENTS 217,218,219At; measured hyperfine structure spectra, isotopic shifts, and hyperfine splitting constants using in-source resonance-ionization technique at CERN-ISOLDE; deduced magnetic dipole and electric quadrupole moments, changes in nuclear mean-square charge radii, octupole collectivity. 217,218,219At isotopes produced in U(p, X), E=1.4 GeV reaction. Systematics of g factors in 209,211,213Bi, 211,217,219At, 213,219,221,223,225Fr, 215,217,227Ac, changes in rms charge radii for 207,208,209,210,211,217,218,219At, shell-effect parameters in Pb, Bi, Po, At, Rn, Fr, Ra, Ac isotopes, and odd-even staggering in 205,207,209,211Pb, 207,209,217Po, 208,210,218At, 210,212,220,222,224,226Fr, 219,221Rn, 221,223,225,227Ra.

doi: 10.1103/PhysRevC.99.054317
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2019KA30      Phys.Rev. C 100, 015502 (2019);Erratum Phys. Rev. C 101, 049901 (2020)

J.Karthein, D.Atanasov, K.Blaum, M.Breitenfeldt, V.Bondar, S.George, L.Hayen, D.Lunney, V.Manea, M.Mougeot, D.Neidherr, L.Schweikhard, N.Severijns, A.Welker, F.Wienholtz, R.N.Wolf, K.Zuber

QEC-value determination for 21Na → 21Ne and 23Mg → 23Na mirror-nuclei decays using high-precision mass spectrometry with ISOLTRAP at the CERN ISOLDE facility

ATOMIC MASSES 21Na, 23Mg; measured time-of-flight spectrum using laser ionization, Ramsey-type ion-cyclotron resonances, cyclotron frequency ratios using ISOLTRAP at ISOLDE-CERN facility; deduced Q(ϵ) values. Comparison with previous measurements.

RADIOACTIVITY 21Na, 23Mg(EC)[from SiC(p, X), E=1.4 GeV from CERN Proton-Synchrotron booster, followed by magnetic mass separation using the general-purpose separator (GPS), laser ion source VADLIS, and ISOLDE resonant ionization laser ion source RILIS]; deduced Q(ϵ) from measured mass excesses, logft, up-down Vud element of the Cabibbo-Kobayashi-Maskawa quark mixing matrix. Comparison between Vud values for mirror-nuclei: 19Ne, 29P, 35Ar, 37K and 21Na.

doi: 10.1103/PhysRevC.100.015502
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2018CU02      Phys.Rev. C 97, 054327 (2018)

J.G.Cubiss, A.E.Barzakh, M.D.Seliverstov, A.N.Andreyev, B.Andel, S.Antalic, P.Ascher, D.Atanasov, D.Beck, J.Bieron, K.Blaum, Ch.Borgmann, M.Breitenfeldt, L.Capponi, T.E.Cocolios, T.Day Goodacre, X.Derkx, H.De Witte, J.Elseviers, D.V.Fedorov, V.N.Fedosseev, S.Fritzsche, L.P.Gaffney, S.George, L.Ghys, F.P.Hessberger, M.Huyse, N.Imai, Z.Kalaninova, D.Kisler, U.Koster, M.Kowalska, S.Kreim, J.F.W.Lane, V.Liberati, D.Lunney, K.M.Lynch, V.Manea, B.A.Marsh, S.Mitsuoka, P.L.Molkanov, Y.Nagame, D.Neidherr, K.Nishio, S.Ota, D.Pauwels, L.Popescu, D.Radulov, E.Rapisarda, J.P.Revill, M.Rosenbusch, R.E.Rossel, S.Rothe, K.Sandhu, L.Schweikhard, S.Sels, V.L.Truesdale, C.Van Beveren, P.Van den Bergh, Y.Wakabayashi, P.Van Duppen, K.D.A.Wendt, F.Wienholtz, B.W.Whitmore, G.L.Wilson, R.N.Wolf, K.Zuber

Charge radii and electromagnetic moments of 195-211At

NUCLEAR MOMENTS 195,195m,196,197,197m,198,198m,199,199m,200,200m,201,202,202m,203,204,205,206,207,208,209,210,211At; measured hfs spectra, hyperfine coupling constants, isotope shifts, and rms charge radii using the in-source resonance-ionization spectroscopy method, and Multi-Reflection Time-of-Flight Mass Spectrometer (MR-TOF MS) at CERN-ISOLDE; deduced magnetic dipole moments and spectroscopic quadrupole moments, configurations, and quadrupole deformation parameters. 206At; deduced J. Detailed systematics of magnetic dipole moments, spectroscopic quadrupole moments, deformations, and rms charge radii in Hg, Tl, Pb, Bi, Po, At, Fr, Ra and Ac nuclei. Comparison with theoretical calculations using multiconfiguration Dirac-Hartree-Fock (MCDHF) method.

NUCLEAR REACTIONS U(p, X)195At/195mAt/196At/197At/197mAt/198At/198mAt/199At/199mAt/200At/200m1At/200m2At/201At/202At/202mAt/203At/204At/205At/206At/207At/208At/209At/210At/211At, E=1.4 GeV; produced radioactive astatine isotopes by spallation reaction with beam from CERN PS Booster impinging on a thick UCx target, followed by injection into a hot cavity of the Resonance Ionization Laser Ion Source (RILIS), and ionization by a three-step photoionization scheme.

doi: 10.1103/PhysRevC.97.054327
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2018FA02      Phys.Rev. A 97, 023402 (2018)

X.Fabian, X.Flechard, B.Pons, E.Lienard, G.Ban, M.Breitenfeldt, C.Couratin, P.Delahaye, D.Durand, P.Finlay, B.Guillon, Y.Lemiere, F.Mauger, A.Mery, O.Naviliat-Cuncic, T.Porobic, G.Quemener, N.Severijns, J.-C.Thomas

Electron shakeoff following the β+ decay of 19Ne+ and 35Ar+ trapped ions

RADIOACTIVITY 19Ne, 35Ar(β+) [from C(20Ne, X)19Ne, E=95 MeV/nucleon]; measured decay products, time of flight, Eβ, Iβ; deduced ion charge-state branching ratios, one-electron ionization probabilities, charge-state branching ratios with and without recoil and Auger ionizations. Comparison with theoretical calculations.

doi: 10.1103/PhysRevA.97.023402
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2017CA15      J.Phys.(London) G44, 94002 (2017)

R.Catherall, W.Andreazza, M.Breitenfeldt, A.Dorsival, G.J.Focker, T.P.Gharsa, T.J.Giles, J.-L.Grenard, F.Locci, P.Martins, S.Marzari, J.Schipper, A.Shornikov, T.Stora

The ISOLDE facility

doi: 10.1088/1361-6471/aa7eba
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2017MA29      Phys.Rev. C 95, 054322 (2017)

V.Manea, P.Ascher, D.Atanasov, A.E.Barzakh, D.Beck, K.Blaum, Ch.Borgmann, M.Breitenfeldt, R.B.Cakirli, T.E.Cocolios, T.Day Goodacre, D.V.Fedorov, V.N.Fedosseev, S.George, F.Herfurth, M.Kowalska, S.Kreim, Yu.A.Litvinov, D.Lunney, B.Marsh, D.Neidherr, M.Rosenbusch, R.E.Rossel, S.Rothe, L.Schweikhard, F.Wienholtz, R.N.Wolf, K.Zuber

Penning-trap mass spectrometry and mean-field study of nuclear shape coexistence in the neutron-deficient lead region

ATOMIC MASSES 180,185,188,190Au, 197,197m,219At; measured cyclotron frequency ratios with respect to 133Cs+ by the time-of-flight ion-cyclotron-resonance (ToF-ICR) technique using ISOLTRAP at ISOLDE-CERN; deduced mass excesses, and compared to values from AME-2012. Isotopes prepared by 1.4-GeV protons incident on UCx target at CERN's proton synchrotron booster (PSB), followed by selective ionization by resonance-ionization laser ion source (RILIS), and mass separation using magnetic separators at ISOLDE. 197At; deduced ground state and the energy of the isomer. Systematics of S(2n) and rms charge radii for N=100-114, Au and Hg isotopes.

doi: 10.1103/PhysRevC.95.054322
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2016FI09      Eur.Phys.J. A 52, 206 (2016)

P.Finlay, M.Breitenfeldt, T.Porobic, E.Wursten, G.Ban, M.Beck, C.Couratin, X.Fabian, X.Flechard, P.Friedag, P.Friedag, F.Gluck, A.Herlert, A.Knecht, V.Y.Kozlov, E.Lienard, G.Soti, M.Tandecki, E.Traykov, S.Van Gorp, Ch.Weinheimer, D.Zakoucky, N.Severijns

First high-statistics and high-resolution recoil-ion data from the WITCH retardation spectrometer

doi: 10.1140/epja/i2016-16206-y
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2015RO10      Phys.Rev.Lett. 114, 202501 (2015)

M.Rosenbusch, P.Ascher, D.Atanasov, C.Barbieri, D.Beck, K.Blaum, Ch.Borgmann, M.Breitenfeldt, R.B.Cakirli, A.Cipollone, S.George, F.Herfurth, M.Kowalska, S.Kreim, D.Lunney, V.Manea, P.Navratil, D.Neidherr, L.Schweikhard, V.Soma, J.Stanja, F.Wienholtz, R.N.Wolf, K.Zuber

Probing the N=32 Shell Closure below the Magic Proton Number Z=20: Mass Measurements of the Exotic Isotopes 52, 53K

ATOMIC MASSES 52,53K; measured time-of-flight spectra for nuclides; deduced masses. Comparison with Skyrme-Hartree-Fock-Bogoliubov and ab initio Gorkov-Green function calculations.

doi: 10.1103/PhysRevLett.114.202501
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2014BO26      Phys.Rev. C 90, 044307 (2014)

Ch.Bohm, Ch.Borgmann, G.Audi, D.Beck, K.Blaum, M.Breitenfeldt, R.B.Cakirli, T.E.Cocolios, S.Eliseev, S.George, F.Herfurth, A.Herlert, M.Kowalska, S.Kreim, D.Lunney, V.Manea, E.Minaya Ramirez, S.Naimi, D.Neidherr, M.Rosenbusch, L.Schweikhard, J.Stanja, M.Wang, R.N.Wolf, K.Zuber

Evolution of nuclear ground-state properties of neutron-deficient isotopes around Z=82 from precision mass measurements

ATOMIC MASSES 184,186,190m,193m,194,194m,195,195m,198,198mTl, 202,208Pb, 207,208Fr, 224Ra; measured cyclotron frequencies high-precision mass excesses using Penning-trap ISOLTRAP at ISOLDE/CERN; deduced S(2n), S(2p), pairing gap parameter, odd-even effect. Isotopes produced by impinging a 1.4-GeV proton beam on a thick, high-temperature uranium carbide (UCx) target. Comparison with other experimental results, AME-03, AME-12 evaluations, and microscopic calculations assuming spherical shape of the ground states. Systematics of pairing gaps, S(2p), S(2n), and excitation energy of the (9/2-) isomers for N=96-124 Au and Tl nuclei. Analyzed gradual development of collectivity with proton removal in Z=82.

doi: 10.1103/PhysRevC.90.044307
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2014KR09      Phys.Rev. C 90, 024301 (2014)

S.Kreim, D.Beck, K.Blaum, Ch.Borgmann, M.Breitenfeldt, T.E.Cocolios, A.Gottberg, F.Herfurth, M.Kowalska, Yu.A.Litvinov, D.Lunney, V.Manea, T.M.Mendonca, S.Naimi, D.Neidherr, M.Rosenbusch, L.Schweikhard, Th.Stora, F.Wienholtz, R.N.Wolf, K.Zuber

Competition between pairing correlations and deformation from the odd-even mass staggering of francium and radium isotopes

ATOMIC MASSES 222,224,226,227,228,229,230,231,232,233Fr, 233,234Ra[isotopes from U(p, F), E=1.4 GeV]; measured TOF-ICR resonances, frequency ratios, mass excesses using ISOLTRAP Penning-trap at ISOLDE-CERN facility; deduced odd-even staggering in binding energies, S(2n), three-point pairing-gap estimator Δ3(N); calculated Nilsson single-particle level schemes for N=128-148 nuclei using HF and HFB approaches, and connections to the single-particle level density and nuclear quadrupole and octupole deformations. Comparison with mass measurements using ESR at GSI and AME-2003 evaluation.

RADIOACTIVITY 233Fr(β-)[from U(p, F), E=1.4 GeV]; measured (ion)β correlations, ground-state half-life.

doi: 10.1103/PhysRevC.90.024301
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2014SO16      Phys.Rev. C 90, 035502 (2014)

G.Soti, F.Wauters, M.Breitenfeldt, P.Finlay, P.Herzog, A.Knecht, U.Koster, I.S.Kraev, T.Porobic, P.N.Prashanth, I.S.Towner, C.Tramm, D.Zakoucky, N.Severijns

Measurement of the β-asymmetry parameter of 67Cu in search for tensor-type currents in the weak interaction

RADIOACTIVITY 67,68,68mCu(β-)[from U(p, X), E=1.4 GeV, followed by fragment separation by RILIS and GPS at CERN-ISOLDE]; measured Eβ, Iβ, β(θ, H, temp) by using nuclear implantation into Cold On-Line Equipment (NICOLE) 3He-4He dilution refrigerator; deduced β-asymmetry parameter for 67Cu decay and constraints on tensor coupling constants, nuclear matrix elements. Technique of LTNO used in combination with GEANT4-based Monte Carlo simulations. Comparisons with previous experimental measurements, and with predictions of standard model.

doi: 10.1103/PhysRevC.90.035502
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2014VA12      Phys.Rev. C 90, 025502 (2014)

S.Van Gorp, M.Breitenfeldt, M.Tandecki, M.Beck, P.Finlay, P.Friedag, F.Gluck, A.Herlert, V.Kozlov, T.Porobic, G.Soti, E.Traykov, F.Wauters, Ch.Weinheimer, D.Zakoucky, N.Severijns

First β-ν correlation measurement from the recoil-energy spectrum of Penning trapped 35Ar ions

RADIOACTIVITY 35Ar(β+)[from Ca(p, X), E=1.4 GeV]; measured recoil (35Cl) ion energy spectrum, βν(θ) using REXTRAP, WITCH systems at ISOLDE-CERN facility; deduced beta-neutrino correlation coefficient 'a' and compared with predicted value from Standard model. SIMBUCA simulation. Search for exotic currents in weak interactions.

doi: 10.1103/PhysRevC.90.025502
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2013CO25      Phys.Rev. A 88, 041403 (2013)

C.Couratin, X.Fabian, B.Fabre, B.Pons, X.Flechard, E.Lienard, G.Ban, M.Breitenfeldt, P.Delahaye, D.Durand, A.Mery, O.Naviliat-Cuncic, T.Porobic, G.Quemener, D.Rodriguez, N.Severijns, J.-C.Thomas, S.Van Gorp

Electron shakeoff following the Β+ decay of trapped 35Ar+ ions

RADIOACTIVITY 35Ar(β+); measured decay products, nuclear recoil; deduced charge-state distribution of recoiling daughter. Comparison with shakeoff and Auger processes calculations.

doi: 10.1103/PhysRevA.88.041403
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2013KR15      Nucl.Instrum.Methods Phys.Res. B317, 492 (2013)

S.Kreim, D.Atanasov, D.Beck, K.Blaum, Ch.Bohm, Ch.Borgmann, M.Breitenfeldt, T.E.Cocolios, D.Fink, S.George, A.Herlert, A.Kellerbauer, U.Koster, M.Kowalska, D.Lunney, V.Manea, E.Minaya Ramirez, S.Naimi, D.Neidherr, T.Nicol, R.E.Rossel, M.Rosenbusch, L.Schweikhard, J.Stanja, F.Wienholtz, R.N.Wolf, K.Zuber

Recent exploits of the ISOLTRAP mass spectrometer

ATOMIC MASSES 191Au; measured time-of-flight ion-cyclotron resonance spectra; deduced mass excess. Comparison with available data.

doi: 10.1016/j.nimb.2013.07.072
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2013ST25      Phys.Rev. C 88, 054304 (2013)

J.Stanja, Ch.Borgmann, J.Agramunt, A.Algora, D.Beck, K.Blaum, Ch.Bohm, M.Breitenfeldt, T.E.Cocolios, L.M.Fraile, F.Herfurth, A.Herlert, M.Kowalska, S.Kreim, D.Lunney, V.Manea, E.Minaya Ramirez, S.Naimi, D.Neidherr, M.Rosenbusch, L.Schweikhard, G.Simpson, F.Wienholtz, R.N.Wolf, K.Zuber

Mass spectrometry and decay spectroscopy of isomers across the Z=82 shell closure

ATOMIC MASSES 190mTl, 194Tl, 194mTl, 198At; measured time-of-flight ion cyclotron (TOF-ICR) resonances, mass excesses using RILIS and ISOLTRAP at ISOLDE-CERN facility; deduced level energies, J, π for ground states and isomers, Q values for decays. 190Tl, 194Bi, 194mBi, 198mAt, 202Fr, 202mFr, 206Ac, 206mAc; deduced mass excesses in α-decay chains using measured mass values for 7(+) state in 190mTl and (3+) in 198At. Comparison with AME-03 data. Discussed hyperfine structure for 198,198mAt and state assignments from another experiment at ISOLTRAP-ISOLDE-CERN facility.

RADIOACTIVITY 190,194Tl(β-); measured Eγ, βγ-coin correlated with implants, half-lives of parent states, Q values for decays. Systematics of levels, J, π, μ in isomeric states of 184,186,188,190,192,194,196,198,200,202,204Tl.

doi: 10.1103/PhysRevC.88.054304
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2013WI06      Nature(London) 498, 346 (2013), Erratum Nature(London) 498, 346 (2013)

F.Wienholtz, D.Beck, K.Blaum, Ch.Borgmann, M.Breitenfeldt, R.B.Cakirli, S.George, F.Herfurth, J.D.Holt, M.Kowalska, S.Kreim, D.Lunney, V.Manea, J.Menendez, D.Neidherr, M.Rosenbusch, L.Schweikhard, A.Schwenk, J.Simonis, J.Stanja, K.Zuber

Masses of exotic calcium isotopes pin down nuclear forces

ATOMIC MASSES 51,52,53,54Ca; measured TOF, ion cyclotron resonance frequency ratio; deduced masses. ISOLTRAP high-resolution Penning trap, shell-model calculations with KB3G and GXPF1A interactions.

doi: 10.1038/nature12226
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2013WO06      Phys.Rev.Lett. 110, 041101 (2013)

R.N.Wolf, D.Beck, K.Blaum, Ch.Bohm, Ch.Borgmann, M.Breitenfeldt, N.Chamel, S.Goriely, F.Herfurth, M.Kowalska, S.Kreim, D.Lunney, V.Manea, E.Minaya Ramirez, S.Naimi, D.Neidherr, M.Rosenbusch, L.Schweikhard, J.Stanja, F.Wienholtz, K.Zuber

Plumbing Neutron Stars to New Depths with the Binding Energy of the Exotic Nuclide 82Zn

ATOMIC MASSES 82Zn; measured time-of-flight resonance, mean frequency ratio; deduced mass. ISOLTRAP setup at the ISOLDE-CERN facility.

doi: 10.1103/PhysRevLett.110.041101
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2012FI01      Phys.Rev.Lett. 108, 062502 (2012)

D.Fink, J.Barea, D.Beck, K.Blaum, Ch.Bohm, Ch.Borgmann, M.Breitenfeldt, F.Herfurth, A.Herlert, J.Kotila, M.Kowalska, S.Kreim, D.Lunney, S.Naimi, M.Rosenbusch, S.Schwarz, L.Schweikhard, F.Simkovic, J.Stanja, K.Zuber

Q Value and Half-Lives for the Double-β-Decay Nuclide 110Pd

RADIOACTIVITY 110Pd(2β-); measured resonance frequencies;deduced precise Q-value. Comparison with AME2003 atomic mass evaluation, phase-space factor calculations.

doi: 10.1103/PhysRevLett.108.062502
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2012HE13      Eur.Phys.J. A 48, 97 (2012)

A.Herlert, S.Van Gorp, D.Beck, K.Blaum, M.Breitenfeldt, R.B.Cakirli, S.George, U.Hager, F.Herfurth, A.Kellerbauer, D.Lunney, R.Savreux, L.Schweikhard, C.Yazidjian

Recoil-ion trapping for precision mass measurements

ATOMIC MASSES 56,57,58,58m,59,60,60m,61,62,62m,63Mn; measured frequency ratio; deduced mass.

doi: 10.1140/epja/i2012-12097-2
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2012NA15      Phys.Rev. C 86, 014325 (2012)

S.Naimi, G.Audi, D.Beck, K.Blaum, Ch.Bohm, Ch.Borgmann, M.Breitenfeldt, S.George, F.Herfurth, A.Herlert, A.Kellerbauer, M.Kowalska, D.Lunney, E.Minaya-Ramirez, D.Neidherr, M.Rosenbusch, L.Schweikhard, R.N.Wolf, K.Zuber

Surveying the N=40 island of inversion with new manganese masses

ATOMIC MASSES 48Ti, 55,57,58,58m,59,60,60m,61,62,62m,63,64,65,66Mn, 61,62,63Fe; measured frequency ratio using RILIS facility and ISOLTRAP mass spectrometer at CERN facility, with reference to frequencies for 39K, TiO, 55Mn and 85Rb; deduced and evaluated mass excesses and compared with AME-2003. Z=24-36, N=30-52; systematics of S(2n) values. Z=25-26, N=29-40; systematics of neutron pairing gaps. Z=25, N=28-41; systematics of S(n) values. Proposed collectivity around N=40, and island of inversion near 63Mn.

doi: 10.1103/PhysRevC.86.014325
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2011BE16      Eur.Phys.J. A 47, 45 (2011)

M.Beck, S.Coeck, V.Yu.Kozlov, M.Breitenfeldt, P.Delahaye, P.Friedag, F.Gluck, M.Herbane, A.Herlert, I.S.Kraev, J.Mader, M.Tandecki, S.Van Gorp, F.Wauters, Ch.Weinheimer, F.Wenander, N.Severijns, and the ISOLDE Collaboration

First detection and energy measurement of recoil ions following beta decay in a Penning trap with the WITCH experiment

RADIOACTIVITY 124In(β-); measured decay products, recoil ions; deduced recoil energy spectrum. Penning trap measurements.

doi: 10.1140/epja/i2011-11045-0
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2011GO17      Phys.Rev. C 84, 014323 (2011)

V.V.Golovko, F.Wauters, S.Cottenier, M.Breitenfeldt, V.De Leebeeck, S.Roccia, G.Soti, M.Tandecki, E.Traykov, S.Van Gorp, D.Zakoucky, N.Severijns

Hyperfine field and hyperfine anomalies of copper impurities in iron

NUCLEAR MOMENTS 59,67,69,71Cu; analyzed magnetic moments obtained from laser spectroscopy and nuclear magnetic resonance frequencies from β-NMR experiments; deduced hyperfine anomalies, and hyperfine magnetic field of Cu in Fe host.

doi: 10.1103/PhysRevC.84.014323
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2010BR02      Phys.Rev. C 81, 034313 (2010)

M.Breitenfeldt, Ch.Borgmann, G.Audi, S.Baruah, D.Beck, K.Blaum, Ch.Bohm, R.B.Cakirli, R.F.Casten, P.Delahaye, M.Dworschak, S.George, F.Herfurth, A.Herlert, A.Kellerbauer, M.Kowalska, D.Lunney, E.Minaya-Ramirez, S.Naimi, D.Neidherr, M.Rosenbusch, R.Savreux, S.Schwarz, L.Schweikhard, C.Yazidjian

Approaching the N=82 shell closure with mass measurements of Ag and Cd isotopes

ATOMIC MASSES 112,114,115,116,117,118,119,120,121,122,123,124Ag, 114,120,122,123,124,126,128Cd; measured cyclotron frequencies relative to 133Cs, and mass excesses using ISOLTRAP Penning trap spectrometer; deduced excitation energies of the isomers; evaluated mass excesses; two-neutron separate energies, and proton-neutron interaction strength δVpn. Comparison with previous data and AME-2003.

doi: 10.1103/PhysRevC.81.034313
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2010EL11      Phys.Lett. B 693, 426 (2010)

S.Eliseev, Ch.Bohm, D.Beck, K.Blaum, M.Breitenfeldt, V.N.Fedosseev, S.George, F.Herfurth, A.Herlert, H.-J.Kluge, M.Kowalska, D.Lunney, S.Naimi, D.Neidherr, Yu.N.Novikov, M.Rosenbusch, L.Schweikhard, S.Schwarz, M.Seliverstov, K.Zuber

Direct mass measurements of 194Hg and 194Au: A new route to the neutrino mass determination?

ATOMIC MASSES 194Au, 194Hg; measured cyclotron frequency ratio; deduced mass excesses, Q-value of the orbital electron capture. Implications for β-decay anti-neutrino mass measurements.

doi: 10.1016/j.physletb.2010.08.071
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2010NA13      Phys.Rev.Lett. 105, 032502 (2010)

S.Naimi, G.Audi, D.Beck, K.Blaum, Ch.Bohm, Ch.Borgmann, M.Breitenfeldt, S.George, F.Herfurth, A.Herlert, M.Kowalska, S.Kreim, D.Lunney, D.Neidherr, M.Rosenbusch, S.Schwarz, L.Schweikhard, K.Zuber

Critical-Point Boundary for the Nuclear Quantum Phase Transition Near A=100 from Mass Measurements of 96, 97Kr

ATOMIC MASSES 80,86,87,94,96,97Kr; measured cyclotron frequencies and ratios; deduced mass excess, deformation. Penning-trap mass spectrometer at ISOLDE, CERN.

doi: 10.1103/PhysRevLett.105.032502
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2010WA40      Phys.Rev. C 82, 055502 (2010)

F.Wauters, I.Kraev, D.Zakoucky, M.Beck, M.Breitenfeldt, V.De Leebeeck, V.V.Golovko, V.Yu.Kozlov, T.Phalet, S.Roccia, G.Soti, M.Tandecki, I.S.Towner, E.Traykov, S.Van Gorp, N.Severijns

Precision measurements of the 60Co β-asymmetry parameter in search for tensor currents in weak interactions

RADIOACTIVITY 60Co(β-); measured E(β), I(β), γ(θ), β asymmetry parameter using a polarized 60Co source with low-temperature nuclear orientation method. 57Co, 54Mn(EC); measured γ(θ) and used as references for temperature measurement. Systematics of β-asymmetry parameters for Gamow-Teller transitions and for T=1/2 mirror nuclei. Tensor currents in weak interactions.

doi: 10.1103/PhysRevC.82.055502
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Data from this article have been entered in the XUNDL database. For more information, click here.


2010WA42      Phys.Rev. C 82, 064317 (2010)

F.Wauters, B.Verstichel, M.Breitenfeldt, V.De Leebeeck, V.Yu.Kozlov, I.Kraev, S.Roccia, G.Soti, M.Tandecki, E.Traykov, S.Van Gorp, D.Zakoucky, N.Severijns

Half-life of 221Fr in Si and Au at 4 K and at millikelvin temperatures

RADIOACTIVITY 221Fr(α)[from U(p, X), E=1.4 GeV]; measured Eα, Iα, Eγ, Iγ parent half-life at 20 mK and 4 K in Si and Au host media. No dependency on the solid-state environment and temperature of this α decaying isotope is observed up to a level of 0.1%.

doi: 10.1103/PhysRevC.82.064317
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Data from this article have been entered in the XUNDL database. For more information, click here.


2009BR09      Phys.Rev. C 80, 035805 (2009)

M.Breitenfeldt, G.Audi, D.Beck, K.Blaum, S.George, F.Herfurth, A.Herlert, A.Kellerbauer, H.-J.Kluge, M.Kowalska, D.Lunney, S.Naimi, D.Neidherr, H.Schatz, S.Schwarz, L.Schweikhard

Penning trap mass measurements of 99-109Cd with the ISOLTRAP mass spectrometer, and implications for the rp process

ATOMIC MASSES 99,100,101,102,103,104,105,106,107,108,109Cd; measured and evaluated masses using ISOLTRAP penning-trap spectrometer. Comparisons with other measurements and AME-2003 evaluation.

doi: 10.1103/PhysRevC.80.035805
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2009KO35      Eur.Phys.J. A 42, 351 (2009)

M.Kowalska, S.Naimi, J.Agramunt, A.Algora, G.Audi, D.Beck, B.Blank, K.Blaum, Ch.Bohm, M.Breitenfeldt, E.Estevez, L.M.Fraile, S.George, F.Herfurth, A.Herlert, A.Kellerbauer, D.Lunney, E.Minaya-Ramirez, D.Neidherr, B.Olaizola, K.Riisager, M.Rosenbusch, B.Rubio, S.Schwarz, L.Schweikhard, U.Warring

Preparing a journey to the east of 208Pb with ISOLTRAP: Isobaric purification at A = 209 and new masses for 211-213Fr and 211Ra

ATOMIC MASSES 211,212,213Fr, 211Ra; measured masses using Penning trap at ISOLDE.

doi: 10.1140/epja/i2009-10835-1
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2009NE03      Phys.Rev.Lett. 102, 112501 (2009)

D.Neidherr, G.Audi, D.Beck, K.Blaum, Ch.Bohm, M.Breitenfeldt, R.B.Cakirli, R.F.Casten, S.George, F.Herfurth, A.Herlert, A.Kellerbauer, M.Kowalska, D.Lunney, E.Minaya-Ramirez, S.Naimi, E.Noah, L.Penescu, M.Rosenbusch, S.Schwarz, L.Schweikhard, T.Stora

Discovery of 229Rn and the Structure of the Heaviest Rn and Ra Isotopes from Penning-Trap Mass Measurements

ATOMIC MASSES 220,223,224,225,226,227,228,229Rn; measured masses using ISOLTRAP mass spectrometer.

doi: 10.1103/PhysRevLett.102.112501
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2009NE11      Phys.Rev. C 80, 044323 (2009)

D.Neidherr, R.B.Cakirli, G.Audi, D.Beck, K.Blaum, Ch.Bohm, M.Breitenfeldt, R.F.Casten, S.George, F.Herfurth, A.Herlert, A.Kellerbauer, M.Kowalska, D.Lunney, E.Minaya-Ramirez, S.Naimi, M.Rosenbusch, S.Schwarz, L.Schweikhard

High-precision Penning-trap mass measurements of heavy xenon isotopes for nuclear structure studies

ATOMIC MASSES 136,137,138,139,140,141,142,143,144,145,146Xe; measured masses using the ISOLTRAP double Penning-trap mass spectrometer at ISOLDE-CERN facility. Comparison with earlier measurements and AME-2003 evaluation. Z=50-78, N=78-112; systematics of S(2n) values. N=74-92, Z=52-58, even Z; N=119-141, odd N, Z=84-90, odd Z; Z=50-82, N=82-126; systematics of proton-neutron interaction strengths.

doi: 10.1103/PhysRevC.80.044323
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2008GE08      Europhys.Lett. 82, 50005 (2008)

S.George, G.Audi, B.Blank, K.Blaum, M.Breitenfeldt, U.Hager, F.Herfurth, A.Herlert, A.Kellerbauer, H.-J.Kluge, M.Kretzschmar, D.Lunney, R.Savreux, S.Schwarz, L.Schweikhard, C.Yazidjian

Time-separated oscillatory fields for high-precision mass measurements on short-lived Al and Ca nuclides

ATOMIC MASSES 26,27Al, 38,39Ca; measured cyclotron frequency ratios and their average values; deduced mass excesses and their uncertainties. Comparison with AME 2003 evaluation, available data.

doi: 10.1209/0295-5075/82/50005
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2007GE07      Phys.Rev.Lett. 98, 162501 (2007)

S.George, S.Baruah, B.Blank, K.Blaum, M.Breitenfeldt, U.Hager, F.Herfurth, A.Herlert, A.Kellerbauer, H.-J.Kluge, M.Kretzschmar, D.Lunney, R.Savreux, S.Schwarz, L.Schweikhard, C.Yazidjian

Ramsey Method of Separated Oscillatory Fields for High-Precision Penning Trap Mass Spectrometry

ATOMIC MASSES 38Ca; measured mass. Penning trap, Ramsey method.

doi: 10.1103/PhysRevLett.98.162501
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2006BL17      Hyperfine Interactions 171, 83 (2006)

K.Blaum, D.Beck, M.Breitenfeldt, S.George, F.Herfurth, A.Herlert, A.Kellerbauer, H.-J.Kluge, D.Lunney, R.Savreux, S.Schwarz, L.Schweikhard, C.Yazidjian

Penning trap mass spectrometry for nuclear structure studies

doi: 10.1007/s10751-006-9501-4
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2005BL30      Eur.Phys.J. A 25, Supplement 1, 49 (2005)

M.Block, D.Ackermann, D.Beck, K.Blaum, M.Breitenfeldt, A.Chauduri, A.Doemer, S.Eliseev, D.Habs, S.Heinz, F.Herfurth, F.P.Hessberger, S.Hofmann, H.Geissel, H.-J.Kluge, V.Kolhinen, G.Marx, J.B.Neumayr, M.Mukherjee, M.Petrick, W.Plass, W.Quint, S.Rahaman, C.Rauth, D.Rodriguez, C.Scheidenberger, L.Schweikhard, M.Suhonen, P.G.Thirolf, Z.Wang, C.Weber, and the SHIPTRAP Collaboration

The ion-trap facility SHIPTRAP: Status and perspectives

doi: 10.1140/epjad/i2005-06-013-5
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