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NSR database version of April 11, 2024.

Search: Author = D.Beck

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2023AL24      Chin.Phys.C 47, 103001 (2023)

S.Al Kharusi, G.Anton, I.Badhrees, P.S.Barbeau, D.Beck, V.Belov, T.Bhatta, M.Breidenbach, T.Brunner, G.F.Cao, W.R.Cen, C.Chambers, B.Cleveland, M.Coon, A.Craycraft, T.Daniels, L.Darroch, S.J.Daugherty, J.Davis, S.Delaquis, A.Der Mesrobian-Kabakian, R.DeVoe, J.Dilling, A.Dolgolenko, M.J.Dolinski, J.Echevers, W.Fairbank Jr., D.Fairbank, J.Farine, S.Feyzbakhsh, P.Fierlinger, Y.S.Fu, D.Fudenberg, P.Gautam, R.Gornea, G.Gratta, C.Hall, E.V.Hansen, J.Hoessl, P.Hufschmidt, M.Hughes, A.Iverson, A.Jamil, C.Jessiman, M.J.Jewell, A.Johnson, A.Karelin, L.J.Kaufman, T.Koffas, R.Krucken, A.Kuchenkov, K.S.Kumar, Y.Lan, A.Larson, B.G.Lenardo, D.S.Leonard, G.S.Li, S.Li, Z.Li, C.Licciardi, Y.H.Lin, R.MacLellan, T.McElroy, T.Michel, B.Mong, D.C.Moore, K.Murray, O.Njoya, O.Nusair, A.Odian, I.Ostrovskiy, A.Perna, A.Piepke, A.Pocar, F.Retiere, A.L.Robinson, P.C.Rowson, J.Runge, S.Schmidt, D.Sinclair, K.Skarpaas, A.K.Soma, V.Stekhanov, M.Tarka, S.Thibado, J.Todd, T.Tolba, T.I.Totev, R.Tsang, B.Veenstra, V.Veeraraghavan, P.Vogel, J.-L.Vuilleumier, M.Wagenpfeil, J.Watkins, M.Weber, L.J.Wen, U.Wichoski, G.Wrede, S.X.Wu, Q.Xia, D.R.Yahne, L.Yang, Y.-R.Yen, O.Ya.Zeldovich, T.Ziegler, EXO-200 Collaboration

Search for two-neutrino double-beta decay of 136Xe to the 0+1 excited state of 136Ba with the complete EXO-200 dataset

RADIOACTIVITY 136Xe(2β-); analyzed available data using a deep learning-based convolutional neural network is used to discriminate signal from background events; deduced T1/2 lower limit at 90% confidence level.

doi: 10.1088/1674-1137/aceee3
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2022LI32      Phys.Rev. C 105, 065205 (2022)

Y.Liang, V.Tvaskis, M.E.Christy, A.Ahmidouch, C.S.Armstrong, J.Arrington, R.Asaturyan, S.Avery, O.K.Baker, D.H.Beck, H.P.Blok, C.W.Bochna, W.Boeglin, P.Bosted, M.Bouwhuis, H.Breuer, D.S.Brown, A.Bruell, R.D.Carlini, J.Cha, N.S.Chant, A.Cochran, L.Cole, S.Danagoulian, D.B.Day, J.Dunne, D.Dutta, R.Ent, H.C.Fenker, B.Fox, L.Gan, H.Gao, K.Garrow, D.Gaskell, A.Gasparian, D.F.Geesaman, R.Gilman, P.L.J.Gueye, M.Harvey, R.J.Holt, X.Jiang, M.Jones, C.E.Keppel, E.Kinney, W.Lorenzon, A.Lung, D.J.Mack, P.Markowitz, J.W.Martin, K.McIlhany, D.McKee, D.Meekins, M.A.Miller, R.G.Milner, J.H.Mitchell, H.Mkrtchyan, B.A.Mueller, A.Nathan, G.Niculescu, I.Niculescu, T.G.O'Neill, V.Papavassiliou, S.F.Pate, R.B.Piercey, D.Potterveld, R.D.Ransome, J.Reinhold, E.Rollinde, O.Rondon, P.Roos, A.J.Sarty, R.Sawafta, E.C.Schulte, E.Segbefia, C.Smith, S.Stepanyan, S.Strauch, V.Tadevosyan, L.Tang, R.Tieulent, A.Uzzle, W.F.Vulcan, S.A.Wood, F.Xiong, L.Yuan, M.Zeier, B.Zihlmann, V.Ziskin

Measurement of R=σLT and the separated longitudinal and transverse structure functions in the nucleon-resonance region

NUCLEAR REACTIONS 1H(e, X), E=1.2-5.5 GeV; measured reaction products; deduced σ(θ), σLT, longitudinal and transverse nucleon structure function. High momentum spectrometer (HMS) at CEBAF accelerator (JLab).

doi: 10.1103/PhysRevC.105.065205
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2022NE08      Eur.Phys.J. A 58, 141 (2022)

T.Neulinger, D.Beck, E.Connolly, S.Degenkolb, P.Fierlinger, H.Filter, J.Hingerl, P.Nordin, T.Saerbeck, O.Zimmer

Ultracold neutron storage in a bottle coated with the fluoropolymer CYTOP

doi: 10.1140/epja/s10050-022-00791-x
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2021AL33      Phys.Rev. D 104, 112002 (2021)

S.Al Kharusi, G.Anton, I.Badhrees, P.S.Barbeau, D.Beck, V.Belov, T.Bhatta, M.Breidenbach, T.Brunner, G.F.Cao, W.R.Cen, C.Chambers, B.Cleveland, M.Coon, A.Craycraft, T.Daniels, L.Darroch, S.J.Daugherty, J.Davis, S.Delaquis, A.Der Mesrobian-Kabakian, R.DeVoe, J.Dilling, A.Dolgolenko, M.J.Dolinski, J.Echevers, W.Fairbank, D.Fairbank, J.Farine, S.Feyzbakhsh, P.Fierlinger, D.Fudenberg, P.Gautam, R.Gornea, G.Gratta, C.Hall, E.V.Hansen, J.Hoessl, P.Hufschmidt, M.Hughes, A.Iverson, A.Jamil, C.Jessiman, M.J.Jewell, A.Johnson, A.Karelin, L.J.Kaufman, T.Koffas, R.Krucken, A.Kuchenkov, K.S.Kumar, Y.Lan, A.Larson, B.G.Lenardo, D.S.Leonard, G.S.Li, S.Li, Z.Li, C.Licciardi, Y.H.Lin, R.MacLellan, T.McElroy, T.Michel, B.Mong, D.C.Moore, K.Murray, O.Njoya, O.Nusair, A.Odian, I.Ostrovskiy, A.Perna, A.Piepke, A.Pocar, F.Retiere, A.L.Robinson, P.C.Rowson, D.Ruddell, J.Runge, S.Schmidt, D.Sinclair, K.Skarpaas, A.K.Soma, V.Stekhanov, M.Tarka, S.Thibado, J.Todd, T.Tolba, T.I.Totev, R.Tsang, B.Veenstra, V.Veeraraghavan, P.Vogel, J.-L.Vuilleumier, M.Wagenpfeil, J.Watkins, M.Weber, L.-J.Wen, U.Wichoski, G.Wrede, S.X.Wu, Q.Xia, D.R.Yahne, L.Yang, Y.-R.Yen, O.Ya.Zeldovich, T.Ziegler

Search for Majoron-emitting modes of 136Xe double beta decay with the complete EXO-200 dataset

RADIOACTIVITY 136Xe(2β-); analyzed available data; deduced T1/2 limit on Majoron-emitting modes. The full EXO-200 dataset.

doi: 10.1103/PhysRevD.104.112002
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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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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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2017AT01      J.Phys.(London) G44, 044004 (2017)

D.Atanasov, D.Beck, K.Blaum, C.Borgmann, R.B.Cakirli, T.Eronen, S.George, F.Herfurth, A.Herlert, M.Kowalska, S.Kreim, Y.A.Litvinov, D.Lunney, V.Manea, D.Neidherr, M.Rosenbusch, L.Schweikhard, F.Wienholtz, R.N.Wolf, K.Zuber

Precision mass measurements of cesium isotopes-new entries in the ISOLTRAP chronicles

ATOMIC MASSES 123,146,147,148Cs [from U(p, X)148Cs/147Cs/146Cs/132Cs, E=1.4 GeV]; measured the time-of-flight resonances; deduced time-of- flight ion-cyclotron resonance spectrum, mass excess. Comparison with AME2012 evaluation.

doi: 10.1088/1361-6471/aa5a20
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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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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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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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2013MA81      Phys.Rev. C 88, 054322 (2013)

V.Manea, D.Atanasov, D.Beck, K.Blaum, C.Borgmann, R.B.Cakirli, T.Eronen, S.George, F.Herfurth, A.Herlert, M.Kowalska, S.Kreim, Yu.A.Litvinov, D.Lunney, D.Neidherr, M.Rosenbusch, L.Schweikhard, F.Wienholtz, R.N.Wolf, K.Zuber

Collective degrees of freedom of neutron-rich A≈100 nuclei and the first mass measurement of the short-lived nuclide 100Rb

ATOMIC MASSES 98,99,100Rb; measured time-of-flight ion-cyclotron resonance, mass excesses using ISOLTRAP at ISOLDE-CERN facility. Comparison with AME-12 evaluation. No evidence found for isomer in 98Rb.

NUCLEAR STRUCTURE Z=36-44, N=48-65; calculated S(2n), mean-square charge radii, and energies of octupole correlations using HFB theory with SLy4 and Gogny-D1S potentials. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.054322
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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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2013WO05      Int.J. Mass Spectrom. 349-350, 123 (2013)

R.N.Wolf, F.Wienholtz, D.Atanasov, D.Beck, K.Blaum, Ch.Borgmann, F.Herfurth, M.Kowalska, S.Kreim, Yu.A.Litvinov, D.Lunney, V.Manea, D.Neidherr, M.Rosenbusch, L.Schweikhard, J.Stanja, K.Zuber

ISOLTRAP's multi-reflection time-of-flight mass separator/spectrometer

ATOMIC MASSES 137Eu; measured time of flight of ions ejected from the precision Penning trap as a function of excitation frequency; deduced masses. Comparison with available data.

doi: 10.1016/j.ijms.2013.03.020
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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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2012AL12      Nuovo Cim. C 35, 122 (2012)

I.Altarev, D.H.Beck, S.Chesnevskaya, T.Chupp, W.Feldmeier, P.Fierlinger, A.Frei, E.Gutsmiedl, F.Kuchler, P.Link, T.Lins, M.Marino, J.McAndrew, S.Paul, G.Petzoldt, A.Pichlmaier, R.Stoepler, S.Stuiber, B.Taubenheim

A next generation measurement of the electric dipole moment of the neutron at the FRM II

NUCLEAR MOMENTS N; analyzed experimental data and theoretical motivations for searches of time-reversal symmetry-violating electric dipole moments; deduced sensitivity goals for experiments. Ultra-cold neutrons, comparison with available data.

doi: 10.1393/ncc/i2012-11271-0
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2012BE29      Nuovo Cim. C 35, 116 (2012)

D.H.Beck, D.Budker, B.K.Park, for the nEDM Collaboration

From yeV to TeV: Search for the neutron electric dipole moment

doi: 10.1393/ncc/i2012-11266-9
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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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2011CH35      Phys.Rev. C 84, 022501 (2011)

P.-H.Chu, A.M.Esler, J.C.Peng, D.H.Beck, D.E.Chandler, S.Clayton, B.-Z.Hu, S.Y.Ngan, C.H.Sham, L.H.So, S.Williamson, J.Yoder

Dressed spin of polarized 3He in a cell

NUCLEAR MOMENTS 3He; measured modification of effective precession frequency in magnetic field modified by a dressing-field. Zeeman splitting diagrams between dressed and undressed magnetic field. Polarized 3He atoms. Comparison with calculations based on quantum optics formalism. Relevance to neutron electric-dipole moment (EDM) measurements.

doi: 10.1103/PhysRevC.84.022501
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2011HE10      Eur.Phys.J. A 47, 75 (2011)

F.Herfurth, G.Audi, D.Beck, K.Blaum, G.Bollen, P.Delahaye, M.Dworschak, S.George, C.Guenaut, A.Kellerbauer, D.Lunney, M.Mukherjee, S.Rahaman, S.Schwarz, L.Schweikhard, C.Weber, C.Yazidjian

New mass data for the rp-process above Z = 32

ATOMIC MASSES 70,71,72,73,74Se, 72,73,74,75Br; measured mass excess from Zr(p, X), E=1.4 GeV using thick target with ISOLTRAP.

doi: 10.1140/epja/i2011-11075-6
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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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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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2008MU04      Eur.Phys.J. A 35, 1 (2008)

M.Mukherjee, D.Beck, K.Blaum, G.Bollen, J.Dilling, S.George, F.Herfurth, A.Herlert, A.Kellerbauer, H.-J.Kluge, S.Schwarz, L.Schweikhard, C.Yazidjian

ISOLTRAP: An on-line Penning trap for mass spectrometry on short-lived nuclides

doi: 10.1140/epja/i2007-10528-9
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2008MU05      Eur.Phys.J. A 35, 31 (2008)

M.Mukherjee, D.Beck, K.Blaum, G.Bollen, P.Delahaye, J.Dilling, S.George, C.Guenaut, F.Herfurth, A.Herlert, A.Kellerbauer, H.-J.Kluge, U.Koster, D.Lunney, S.Schwarz, L.Schweikhard, C.Yazidjian

Mass measurements and evaluation around A = 22

ATOMIC MASSES 21,22,23Na, 22,24Mg, 37,39K; measured and evaluated masses using the ISOLTRAP Penning trap mass spectrometer.

doi: 10.1140/epja/i2007-10523-2
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2008WE02      Nucl.Phys. A803, 1 (2008)

C.Weber, G.Audi, D.Beck, K.Blaum, G.Bollen, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, S.Schwarz

Atomic mass measurements of short-lived nuclides around the doubly-magic 208Pb

ATOMIC MASSES 145,147Cs, 181,183,186,187,196,205Tl, 197,208Pb, 190,191,192,193,194,195,196,197,209,215,216Bi, 203,205,229Fr, 214,229,230Ra; measured masses using the ISOLTRAP Penning trap mass spectrometer.

doi: 10.1016/j.nuclphysa.2007.12.014
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2007GU09      Phys.Rev. C 75, 044303 (2007)

C.Guenaut, G.Audi, D.Beck, K.Blaum, G.Bollen, P.Delahaye, F.Herfurth, A.Kellerbauer, H.-J.Kluge, J.Libert, D.Lunney, S.Schwarz, L.Schweikhard, C.Yazidjian

High-precision mass measurements of nickel, copper, and gallium isotopes and the purported shell closure at N = 40

ATOMIC MASSES 57,60,64,65,66,67,68,69Ni, 65,66,67,68,69,70,71,72,73,74,76Cu, 63,64,65,68,69,70,71,72,73,74,75,76,77,78Ga; measured masses; analyzed the resulting mass surface for signs of magicity, compared the behavior of N=40 with that of the known magic numbers and with midshell behavior.

NUCLEAR STRUCTURE Z=28, 29, 31; analyzed two-neutron separation energies, pairing energies, masses, compared with mass models, found no evidence for shell closure at N=40.

doi: 10.1103/PhysRevC.75.044303
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2007KE09      Phys.Rev. C 76, 045504 (2007)

A.Kellerbauer, G.Audi, D.Beck, K.Blaum, G.Bollen, C.Guenaut, F.Herfurth, A.Herlert, H.-J.Kluge, D.Lunney, S.Schwarz, L.Schweikhard, C.Weber, C.Yazidjian

High-precision masses of neutron-deficient rubidium isotopes using a Penning trap mass spectrometer

ATOMIC MASSES 74,75,76,77,79,80,83,87Rb; 64Zn;71,74Ga;84,88Sr;133Cs; measured atomic masses. ISOLTRAP Penning Trap.

doi: 10.1103/PhysRevC.76.045504
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2007YA08      Phys.Rev. C 76, 024308 (2007)

C.Yazidjian, G.Audi, D.Beck, K.Blaum, S.George, C.Guenaut, F.Herfurth, A.Herlert, A.Kellerbauer, H.-J.Kluge, D.Lunney, L.Schweikhard

Evidence for a breakdown of the isobaric multiplet mass equation: A study of the A = 35, T = 3/2 isospin quartet

ATOMIC MASSES 35,36,37,38,43,44,45,46K; measured masses using ISOLTRAP. Discussed implications on IMME.

doi: 10.1103/PhysRevC.76.024308
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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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2006KO63      Int.J. Mass Spectrom. 251, 159 (2006)

V.Yu.Kozlov, N.Severijns, D.Beck, M.Beck, S.Coeck, B.Delaure, A.Lindroth, S.Kopecky, P.Delahaye, F.Wenander, V.V.Golovko, I.S.Kraev, T.Phalet, and the ISOLDE NIPNET and TRAPSPEC Collaborations

The WITCH experiment: Completion of a set-up to investigate the structure of weak interactions with a Penning trap

RADIOACTIVITY 26mAl, 38mK(β+); measured recoil energy spectrum in β decay, βν(θ). 20Ne, 23Na, 39K; measured excitation, and ion beam properties on the WITCH set-up. Penning trap method. 35Ar; measured half-life and time-of-flight spectrum.

doi: 10.1016/j.ijms.2006.01.050
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2006RA38      Int.J. Mass Spectrom. 251, 146 (2006)

S.Rahaman, M.Block, D.Ackermann, D.Beck, A.Chaudhuri, S.Eliseev, H.Geissel, D.Habs, F.Herfurth, F.P.Hessberger, S.Hofmann, G.Marx, M.Mukherjee, J.B.Neumayr, M.Petrick, W.R.Plass, W.Quint, C.Rauth, D.Rodriguez, C.Scheidenberger, L.Schweikhard, P.G.Thirolf, C.Weber

On-line commissioning of SHIPTRAP

ATOMIC MASSES 147,148Er, 147Ho; measured masses and time of flight using the Penning-trap mass spectrometer SHIPTRAP. Nuclides produced at SHIP facility.

doi: 10.1016/j.ijms.2006.01.049
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2006RO11      Nucl.Phys. A769, 1 (2006)

D.Rodriguez, G.Audi, J.Aysto, D.Beck, K.Blaum, G.Bollen, F.Herfurth, A.Jokinen, A.Kellerbauer, H.-J.Kluge, V.S.Kolhinen, M.Oinonen, E.Sauvan, S.Schwarz

Accurate mass measurements on neutron-deficient krypton isotopes

ATOMIC MASSES 72,73,74,75,76,77,78,80,82,86Kr; measured masses. Penning trap mass spectrometer.

doi: 10.1016/j.nuclphysa.2006.02.001
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2005BE16      Eur.Phys.J. A 24, Supplement 1, 115 (2005)

D.H.Beck

The weak neutral current of the nucleon

doi: 10.1140/epjad/s2005-05-020-0
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2005BE21      Eur.Phys.J. A 24, Supplement 2, 115 (2005)

D.H.Beck, M.L.Pitt

Beam optics for electron scattering parity-violation experiments

doi: 10.1140/epjad/s2005-04-026-x
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2005BL10      Nucl.Phys. A752, 317c (2005)

K.Blaum, G.Audi, D.Beck, G.Bollen, P.Delahaye, S.George, C.Guenaut, F.Herfurth, A.Herlert, A.Kellerbauer, H.-J.Kluge, D.Lunney, M.Mukherjee, S.Schwarz, L.Schweikhard, C.Yazidjian

ISOLTRAP mass measurements of exotic nuclides at δm/m=10-8

doi: 10.1016/j.nuclphysa.2005.02.124
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2005BL27      J.Phys.(London) G31, S1775 (2005)

K.Blaum, G.Audi, D.Beck, G.Bollen, M.Brodeur, P.Delahaye, S.George, C.Guenaut, F.Herfurth, A.Herlert, A.Kellerbauer, H.-J.Kluge, D.Lunney, M.Mukherjee, D.Rodriguez, S.Schwarz, L.Schweikhard, C.Yazidjian

ISOLTRAP pins down masses of exotic nuclides

doi: 10.1088/0954-3899/31/10/071
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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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2005BL34      Hyperfine Interactions 162, 173 (2005)

K.Blaum, D.Beck, G.Bollen, P.Delahaye, C.Guenaut, F.Herfurth, A.Kellerbauer, H.-J.Kluge, U.Koster, D.Lunney, S.Schwarz, L.Schweikhard, C.Yazidjian

Laser Ionization and Penning Trap Mass Spectrometry - A Fruitful Combination for Isomer Separation and High-precision Mass Measurements

RADIOACTIVITY 70,70mCu(β-) [from U(p, X)]; measured Eγ, βγ-coin. Isomer separation using selective resonant ionization.

doi: 10.1007/s10751-005-9223-z
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2005GU27      J.Phys.(London) G31, S1765 (2005)

C.Guenaut, G.Audi, D.Beck, K.Blaum, G.Bollen, P.Delahaye, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, S.Schwarz, L.Schweikhard, C.Yazidjian

Mass measurements of 56-57Cr and the question of shell reincarnation at N = 32

ATOMIC MASSES 56,57Cr; measured masses. Penning trap mass spectrometer.

NUCLEAR STRUCTURE Z=15-28; analyzed two-neutron separation energies, pairing energies, masses; deduced N=32 shell gap.

doi: 10.1088/0954-3899/31/10/069
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2005GU36      Eur.Phys.J. A 25, Supplement 1, 33 (2005)

C.Guenaut, G.Audi, D.Beck, K.Blaum, G.Bollen, P.Delahaye, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, S.Schwarz, L.Schweikhard, C.Yazidjian

Is N = 40 magic? An analysis of ISOLTRAP mass measurements

ATOMIC MASSES 54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72Ni, 57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76Cu, 61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81Ga; analyzed masses; deduced possible sub-shell closure. Penning trap mass spectrometer.

doi: 10.1140/epjad/i2005-06-029-9
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2005GU37      Eur.Phys.J. A 25, Supplement 1, 35 (2005)

C.Guenaut, G.Audi, D.Beck, K.Blaum, G.Bollen, P.Delahaye, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, S.Schwarz, L.Schweikhard, C.Yazidjian

Extending the mass "backbone" to short-lived nuclides with ISOLTRAP

ATOMIC MASSES 56,57Mn, 82mRb, 92Sr, 124,127Cs, 130Ba; measured masses. Penning trap mass spectrometer.

doi: 10.1140/epjad/i2005-06-030-4
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2005HE03      New Journal of Physics 7, 44 (2005)

A.Herlert, D.Beck, K.Blaum, F.Carrel, P.Delahaye, S.George, C.Guenaut, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, M.Mukherjee, L.Schweikhard, C.Yazidjian

Mass spectrometry of atomic ions produced by in-trap decay of short-lived nuclides

RADIOACTIVITY 37K(β+); 37Ar(EC); measured T1/2.

ATOMIC MASSES 37K, 37Ar; measured masses. Penning trap spectrometer.

doi: 10.1088/1367-2630/7/1/044
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2005HE26      Eur.Phys.J. A 25, Supplement 1, 17 (2005)

F.Herfurth, G.Audi, D.Beck, K.Blaum, G.Bollen, P.Delahaye, S.George, C.Guenaut, A.Herlert, A.Kellerbauer, H.-J.Kluge, D.Lunney, M.Mukherjee, S.Rahaman, S.Schwarz, L.Schweikhard, C.Weber, C.Yazidjian

Recent high-precision mass measurements with the Penning trap spectrometer ISOLTRAP

ATOMIC MASSES 229,230,231,232Ra, 230Fr; measured masses. Penning trap mass spectrometer.

NUCLEAR STRUCTURE Z=81-102; analyzed two-neutron separation energies.

doi: 10.1140/epjad/i2005-06-031-3
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2005RO39      Eur.Phys.J. A 25, Supplement 1, 41 (2005)

D.Rodriguez, V.S.Kolhinen, G.Audi, J.Aysto, D.Beck, K.Blaum, G.Bollen, F.Herfurth, A.Jokinen, A.Kellerbauer, H.-J.Kluge, M.Oinonen, H.Schatz, E.Sauvan, S.Schwarz

Mass measurement on the rp-process waiting point 72Kr

ATOMIC MASSES 72,73,74Kr, 73Rb, 74Sr; measured masses. Penning trap mass spectrometer.

doi: 10.1140/epjad/i2005-06-164-3
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2005SI34      Nucl.Phys. A763, 45 (2005); Erratum Nucl.Phys. A768, 160 (2006)

G.Sikler, G.Audi, D.Beck, K.Blaum, G.Bollen, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, M.Oinonen, C.Scheidenberger, S.Schwarz, J.Szerypo, C.Weber

Mass measurements on neutron-deficient Sr and neutron-rich Sn isotopes with the ISOLTRAP mass spectrometer

ATOMIC MASSES 76,77,80,81,86,88Sr, 124,129,130,131,132Sn; measured masses. Penning trap mass spectrometer, comparison with previous results.

doi: 10.1016/j.nuclphysa.2005.08.014
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2005WE11      Phys.Lett. A 347, 81 (2005)

C.Weber, G.Audi, D.Beck, K.Blaum, G.Bollen, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, S.Schwarz

Weighting excited nuclear states with a Penning trap mass spectrometer

ATOMIC MASSES 187,187mPb; measured masses. 187Pb deduced isomeric state energy. Penning trap mass spectrometer.

doi: 10.1016/j.physleta.2005.06.108
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2005WE13      Eur.Phys.J. A 25, Supplement 1, 201 (2005)

C.Weber, G.Audi, D.Beck, K.Blaum, G.Bollen, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, S.Schwarz

Effects of the pairing energy on nuclear charge radii

ATOMIC MASSES 186,196Tl, 190,192,194,196,216Bi; analyzed mass data. Z=80-81; analyzed two-neutron separation energies, correlation with charge radii.

doi: 10.1140/epjad/i2005-06-195-8
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2005YA25      Eur.Phys.J. A 25, Supplement 1, 67 (2005)

C.Yazidjian, D.Beck, K.Blaum, H.Brand, F.Herfurth, S.Schwarz

Commissioning and first on-line test of the new ISOLTRAP control system

doi: 10.1140/epjad/i2005-06-096-x
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2004BL16      Europhys.Lett. 67, 586 (2004)

K.Blaum, D.Beck, G.Bollen, P.Delahaye, C.Guenaut, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, S.Schwarz, L.Schweikhard, C.Yazidjian

Population inversion of nuclear states by a Penning trap mass spectrometer

ATOMIC MASSES 68Cu; measured isomeric states mass excesses. Penning trap mass spectrometer.

doi: 10.1209/epl/i2004-10089-5
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2004BL20      Nucl.Phys. A746, 305c (2004)

K.Blaum, G.Audi, D.Beck, G.Bollen, C.Guenaut, P.Delahaye, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, D.Rodriguez, S.Schwarz, L.Schweikhard, C.Weber, C.Yazidjian

Recent results from the Penning trap mass spectrometer ISOLTRAP

doi: 10.1016/j.nuclphysa.2004.09.028
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2004CH38      Phys.Rev. C 70, 015206 (2004)

M.E.Christy, A.Ahmidouch, C.S.Armstrong, J.Arrington, R.Asaturyan, S.Avery, O.K.Baker, D.H.Beck, H.P.Blok, C.W.Bochna, W.Boeglin, P.Bosted, M.Bouwhuis, H.Breuer, D.S.Brown, A.Bruell, R.D.Carlini, N.S.Chant, A.Cochran, L.Cole, S.Danagoulian, D.B.Day, J.Dunne, D.Dutta, R.Ent, H.C.Fenker, B.Fox, L.Gan, H.Gao, K.Garrow, D.Gaskell, A.Gasparian, D.F.Geesaman, P.L.J.Gueye, M.Harvey, R.J.Holt, X.Jiang, C.E.Keppel, E.Kinney, Y.Liang, W.Lorenzon, A.Lung, P.Markowitz, J.W.Martin, K.McIlhany, D.Mckee, D.Meekins, M.A.Miller, R.G.Milner, J.H.Mitchell, H.Mkrtchyan, B.A.Mueller, A.Nathan, G.Niculescu, I.Niculescu, T.G.O'Neill, V.Papavassiliou, S.F.Pate, R.B.Piercey, D.Potterveld, R.D.Ransome, J.Reinhold, E.Rollinde, P.Roos, A.J.Sarty, R.Sawafta, E.C.Schulte, E.Segbefia, C.Smith, S.Stepanyan, S.Strauch, V.Tadevosyan, L.Tang, R.Tieulent, A.Uzzle, W.F.Vulcan, S.A.Wood, F.Xiong, L.Yuan, M.Zeier, B.Zihlmann, V.Ziskin

Measurements of electron-proton elastic cross sections for 0.4 < Q2 < 5.5 (GeV/c)2

NUCLEAR REACTIONS 1H(e, e), E=1.1-5.5 GeV; measured elastic σ(Q2), σ(θ); deduced form factors.

doi: 10.1103/PhysRevC.70.015206
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2004DI18      Eur.Phys.J. A 22, 163 (2004)

J.Dilling, F.Herfurth, A.Kellerbauer, G.Audi, D.Beck, G.Bollen, H.-J.Kluge, R.B.Moore, C.Scheidenberger, S.Schwarz, G.Sikler, and the ISOLDE Collaboration

Direct mass measurements of neutron-deficient xenon isotopes using the ISOLTRAP mass spectrometer

ATOMIC MASSES 114,115,116,117,118,119,120,121,122,123Xe; measured masses. Penning trap spectrometer, comparisons with previous results. Application to atomic mass evaluation discussed.

doi: 10.1140/epja/i2004-10015-y
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2004HE32      Nucl.Phys. A746, 487c (2004)

F.Herfurth, G.Audi, D.Beck, K.Blaum, G.Bollen, P.Delahaye, C.Guenaut, A.Kellerbauer, H.-J.Kluge, D.Lunney, D.Rodriguez, S.Saxena, S.Schwarz, L.Schweikhard, G.Sikler, C.Yazidjian

Masses along the rp-process path and large scale surveys on Cu, Ni and Ga with ISOLTRAP

ATOMIC MASSES 57,60,64,65,66,67,68,69Ni, 76,77,80,81,86,88Sr; measured masses. Penning traps. Comparison with previous results.

doi: 10.1016/j.nuclphysa.2004.09.074
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2004KE10      Phys.Rev.Lett. 93, 072502 (2004)

A.Kellerbauer, G.Audi, D.Beck, K.Blaum, G.Bollen, B.A.Brown, P.Delahaye, C.Guenaut, F.Herfurth, H.-J.Kluge, D.Lunney, S.Schwarz, L.Schweikhard, C.Yazidjian

Direct Mass Measurements on the Superallowed Emitter 74Rb and Its Daughter 74Kr: Isospin-Symmetry-Breaking Correction for Standard-Model Tests

ATOMIC MASSES 74Rb, 74Kr; measured masses. 74Rb deduced Qβ, log ft, isospin-symmetry-breaking correction. Penning trap.

doi: 10.1103/PhysRevLett.93.072502
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2004KE14      Nucl.Phys. A746, 635c (2004)

A.Kellerbauer, G.Audi, D.Beck, K.Blaum, G.Bollen, P.Delahaye, F.Herfurth, H.-J.Kluge, V.Kolhinen, M.Mukherjee, D.Rodriguez, S.Schwarz

Towards high-precision mass measurements on 74Rb for a test of the CVC hypothesis and the unitarity of the CKM matrix

ATOMIC MASSES 74Rb, 74Kr; measured masses; deduced superallowed β-decay energy.

doi: 10.1016/j.nuclphysa.2004.09.099
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2004MU26      Phys.Rev.Lett. 93, 150801 (2004)

M.Mukherjee, A.Kellerbauer, D.Beck, K.Blaum, G.Bollen, F.Carrel, P.Delahaye, J.Dilling, S.George, C.Guenaut, F.Herfurth, A.Herlert, H.-J.Kluge, U.Koster, D.Lunney, S.Schwarz, L.Schweikhard, C.Yazidjian

The Mass of 22Mg

ATOMIC MASSES 22Mg, 21,22Na; measured masses. 22Mg deduced Qβ. Penning trap spectrometer, astrophysical implications discussed.

doi: 10.1103/PhysRevLett.93.150801
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2004RO32      Phys.Rev.Lett. 93, 161104 (2004)

D.Rodriguez, V.S.Kolhinen, G.Audi, J.Aysto, D.Beck, K.Blaum, G.Bollen, F.Herfurth, A.Jokinen, A.Kellerbauer, H.-J.Kluge, M.Oinonen, H.Schatz, E.Sauvan, S.Schwarz

Mass Measurement on the rp-Process Waiting Point 72Kr

ATOMIC MASSES 72,73,74Kr; measured masses. Penning trap spectrometer, astrophysical implications discussed.

doi: 10.1103/PhysRevLett.93.161104
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2004SP01      Phys.Lett. B 583, 79 (2004)

D.T.Spayde, D.H.Beck, R.Hasty, T.Averett, D.Barkhuff, G.Dodson, K.Dow, M.Farkhondeh, W.Franklin, E.Tsentalovich, B.Yang, T.Zwart, E.J.Beise, H.Breuer, R.Tieulent, R.Carr, S.Covrig, B.W.Filippone, T.M.Ito, R.D.McKeown, W.Korsch, S.Kowalski, B.Mueller, M.L.Pitt, M.J.Ramsey-Musolf, J.Ritter, S.P.Wells

The strange quark contribution to the proton's magnetic moment

NUCLEAR REACTIONS 1H(polarized e, e'), E=200 MeV; analyzed polarization observables, related data. 1H deduced strange quark contribution to μ.

doi: 10.1016/j.physletb.2004.01.002
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2004VA07      Phys.Rev.Lett. 92, 112501 (2004)

J.Van Roosbroeck, C.Guenaut, G.Audi, D.Beck, K.Blaum, G.Bollen, J.Cederkall, P.Delahaye, A.De Maesschalck, H.De Witte, D.Fedorov, V.N.Fedoseyev, S.Franchoo, H.O.U.Fynbo, M.Gorska, F.Herfurth, K.Heyde, M.Huyse, A.Kellerbauer, H.-J.Kluge, U.Koster, K.Kruglov, D.Lunney, V.I.Mishin, W.F.Mueller, Sz.Nagy, S.Schwarz, L.Schweikhard, N.A.Smirnova, K.Van de Vel, P.Van Duppen, A.Van Dyck, W.B.Walters, L.Weissman, C.Yazidjian

Unambiguous Identification of Three β-Decaying Isomers in 70Cu

RADIOACTIVITY 70Ni(β-); 70mCu(β-), (IT) [from U(p, F) and subsequent decay]; measured Eγ, Iγ, T1/2; deduced log ft. 70Cu deduced levels J, π, configurations. Large scale shell model calculations.

ATOMIC MASSES 70mCu; measured isomeric states mass excesses. Penning trap.

doi: 10.1103/PhysRevLett.92.112501
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Data from this article have been entered in the XUNDL database. For more information, click here.


2003BL17      Phys.Rev.Lett. 91, 260801 (2003)

K.Blaum, G.Audi, D.Beck, G.Bollen, F.Herfurth, A.Kellerbauer, H.-J.Kluge, E.Sauvan, S.Schwarz

Masses of 32Ar and 33Ar for Fundamental Tests

ATOMIC MASSES 32Si, 33P, 33S, 33Cl, 32,33,44,45Ar; measured mass excess; deduced beta-neutrino correlation coefficient. Comparison with previous results.

doi: 10.1103/PhysRevLett.91.260801
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2003HE05      J.Phys.(London) B36, 931 (2003)

F.Herfurth, F.Ames, G.Audi, D.Beck, K.Blaum, G.Bollen, A.Kellerbauer, H.-J.Kluge, M.Kuckein, D.Lunney, R.B.Moore, M.Oinonen, D.Rodriguez, E.Sauvan, C.Scheidenberger, S.Schwarz, G.Sikler, C.Weber, and the ISOLDE Collaboration

Mass measurements and nuclear physics - recent results from ISOLTRAP

ATOMIC MASSES Z=68-89; analyzed mass data; deduced two-neutron separation energies.

doi: 10.1088/0953-4075/36/5/312
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2003LI52      Nucl.Phys. A721, 1103c (2003)

A.Lindroth, M.Beck, B.Delaure, V.Yu.Kozlov, N.Severijns, F.Ames, D.Beck, V.V.Golovko, I.Kraev, T.Phalet, S.Versyck

WITCH: Testing the Standard Model using a β-recoil Spectrometer with a Trapped Ion Cloud as Source

doi: 10.1016/S0375-9474(03)01295-8
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2002BE54      Nucl.Phys. A701, 369c (2002)

D.Beck, F.Ames, M.Beck, G.Bollen, B.Delaure, J.Deutsch, J.Dilling, O.Forstner, T.Phalet, R.Prieels, W.Quint, P.Schmidt, P.Schuurmans, N.Severijns, B.Vereecke, S.Versyck, and the EUROTRAPS Collaboration

Search for New Physics in Beta-Neutrino Correlations with the WITCH Spectrometer

doi: 10.1016/S0375-9474(01)01612-8
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2002DI18      Nucl.Phys. A701, 520c (2002)

J.Dilling, G.Audi, D.Beck, G.Bollen, S.Henry, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, R.B.Moore, C.Scheidenberger, S.Schwarz, G.Sikler, J.Szerypo, and the ISOLDE Collaboration

Direct Mass Measurements of Neutron-Deficient Xenon Isotopes with the ISOLTRAP Mass Spectrometer

ATOMIC MASSES 114,115,116,117,118,119,120,121,122,123,124Xe; measured masses. Penning trap.

doi: 10.1016/S0375-9474(01)01638-4
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2002GA43      Phys.Rev. C66, 044613 (2002)

K.Garrow, D.McKee, A.Ahmidouch, C.S.Armstrong, J.Arrington, R.Asaturyan, S.Avery, O.K.Baker, D.H.Beck, H.P.Blok, C.W.Bochna, W.Boeglin, P.Bosted, M.Bouwhuis, H.Breuer, D.S.Brown, A.Bruell, R.D.Carlini, N.S.Chant, A.Cochran, L.Cole, S.Danagoulian, D.B.Day, J.Dunne, D.Dutta, R.Ent, H.C.Fenker, B.Fox, L.Gan, D.Gaskell, A.Gasparian, H.Gao, D.F.Geesaman, R.Gilman, P.L.J.Gueye, M.Harvey, R.J.Holt, X.Jiang, C.E.Keppel, E.Kinney, Y.Liang, W.Lorenzon, A.Lung, D.J.Mack, P.Markowitz, J.W.Martin, K.McIlhany, D.Meekins, M.A.Miller, R.G.Milner, J.H.Mitchell, H.Mkrtchyan, B.A.Mueller, A.Nathan, G.Niculescu, I.Niculescu, T.G.O'Neill, V.Papavassiliou, S.Pate, R.B.Piercey, D.Potterveld, R.D.Ransome, J.Reinhold, E.Rollinde, P.Roos, A.J.Sarty, R.Sawafta, E.C.Schulte, E.Segbefia, C.Smith, S.Stepanyan, S.Strauch, V.Tadevosyan, L.Tang, R.Tieulent, A.Uzzle, W.F.Vulcan, S.A.Wood, F.Xiong, L.Yuan, M.Zeier, B.Zihlmann, V.Ziskin

Nuclear transparency from quasielastic A(e, e'p) reactions up to Q2 = 8.1 (GeV/c)2

NUCLEAR REACTIONS 2H, 12C, 56Fe(e, e'p), E=3.1, 4.5, 5.6 GeV; measured particle spectra, coincidence yields; deduced nuclear transparency vs mass, momentum transfer.

doi: 10.1103/PhysRevC.66.044613
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2002HE13      Nucl.Phys. A701, 516c (2002)

F.Herfurth, G.Audi, D.Beck, G.Bollen, J.Dilling, S.Henry, A.Kellerbauer, H.-J.Kluge, V.Kolhinen, D.Lunney, R.B.Moore, C.Scheidenberger, S.Schwarz, G.Sikler, J.Szerypo, and the ISOLDE Collaboration

Extension of Penning-Trap Mass Measurements to Very Short-Lived Nuclides

ATOMIC MASSES 33Ar; measured mass. Penning trap.

doi: 10.1016/S0375-9474(01)01637-2
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2002HE23      Eur.Phys.J. A 15, 17 (2002)

F.Herfurth, A.Kellerbauer, F.Ames, G.Audi, D.Beck, K.Blaum, G.Bollen, O.Engels, H.J.Kluge, D.Lunney, R.B.Moore, M.Oinonen, E.Sauvan, C.Scheidenberger, S.Schwarz, G.Sikler, C.Weber, and the ISOLDE Collaboration

Accurate mass measurements of very short-lived nuclei: Prerequisites for high-accuracy investigations of superallowed β-decays

ATOMIC MASSES 34,36,38Ar, 41K, 74,76Rb, 73,74,75,76,77,78,80,82Kr; measured masses. Penning-trap mass spectrometer.

doi: 10.1140/epja/i2001-10216-x
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2002RA23      Nucl.Phys. A706, 3 (2002)

H.Raimbault-Hartmann, G.Audi, D.Beck, G.Bollen, M.de Saint Simon, H.-J.Kluge, M.Konig, R.B.Moore, S.Schwarz, G.Savard, J.Szerypo, and the ISOLDE Collaboration

High-Accuracy Mass Determination of Neutron-Rich Rubidium and Strontium Isotopes

ATOMIC MASSES 88,89,90,91,92,93,94Rb, 91,92,93,94,95Sr; measured masses. On-line mass spectrometry. Penning trap. Least-squares adjustment of data.

doi: 10.1016/S0375-9474(02)00863-1
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2001BE30      Int.J.Mod.Phys. E10, 1 (2001)

D.H.Beck, B.R.Holstein

Nucleon Structure and Parity-Violating Electron Scattering

doi: 10.1142/S0218301301000381
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2001BE74      Hyperfine Interactions 132, 473 (2001)

D.Beck, F.Ames, M.Beck, G.Bollen, B.Delaure, P.Schuurmans, S.Schwarz, P.Schmidt, N.Severijns, O.Forstner

Space Charge Effects in a Gas Filled Penning Trap

doi: 10.1023/A:1011974828147
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2001BO59      Hyperfine Interactions 132, 215 (2001)

G.Bollen, F.Ames, G.Audi, D.Beck, J.Dilling, O.Engels, S.Henry, F.Herfurth, A.Kellerbauer, H.-J.Kluge, A.Kohl, E.Lamour, D.Lunney, R.B.Moore, M.Oinonen, C.Scheidenberger, S.Schwarz, G.Sikler, J.Szerypo, C.Weber, and the ISOLDE Collaboration

Mass Measurements on Short-Lived Nuclides with ISOLTRAP

ATOMIC MASSES 132,133,134Ce, 142Sm, 147,148,149Eu, 149Dy, 158,159,160,161,162,163,164Yb, 165Tm; measured masses. Penning trap spectrometer.

doi: 10.1023/A:1011943813020
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2001DI25      Hyperfine Interactions 132, 331 (2001)

J.Dilling, G.Audi, D.Beck, G.Bollen, F.Herfurth, A.Kellerbauer, H.-J.Kluge, D.Lunney, R.B.Moore, C.Scheidenberger, S.Schwarz, G.Sikler, J.Szerypo, and the ISOLDE Collaboration

Mass Measurements of 114-124, 130Xe with the ISOLTRAP Penning Trap Spectrometer

ATOMIC MASSES 114,115,116,117,118,119,120,121,122,123,124,130Xe; measured masses. Penning trap spectrometer.


2001HE29      Phys.Rev.Lett. 87, 142501 (2001)

F.Herfurth, J.Dilling, A.Kellerbauer, G.Audi, D.Beck, G.Bollen, H.-J.Kluge, D.Lunney, R.B.Moore, C.Scheidenberger, S.Schwarz, G.Sikler, J.Szerypo, and the ISOLDE Collaboration

Breakdown of the Isobaric Multiplet Mass Equation at A = 33, T = 3/2

ATOMIC MASSES 33,34,42,43Ar; measured masses. Penning trap mass spectrometer, linear Paul trap. Comparison with isobaric multiplet mass equation.

doi: 10.1103/PhysRevLett.87.142501
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2001HE37      Hyperfine Interactions 132, 309 (2001)

F.Herfurth, J.Dilling, A.Kellerbauer, G.Audi, D.Beck, G.Bollen, S.Henry, H.-J.Kluge, D.Lunney, R.B.Moore, C.Scheidenberger, S.Schwarz, G.Sikler, J.Szerypo, and the ISOLDE Collaboration

Towards Shorter-Lived Nuclides in ISOLTRAP Mass Measurements

ATOMIC MASSES 33,34,42,43Ar; measured masses. Penning trap mass spectrometer.

doi: 10.1023/A:1011928124996
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2001SC37      Phys.Rev.Lett. 87, 102302 (2001)

E.C.Schulte, A.Ahmidouch, C.S.Armstrong, J.Arrington, R.Asaturyan, S.Avery, O.K.Baker, D.H.Beck, H.P.Blok, C.W.Bochna, W.Boeglin, P.Y.Bosted, M.Bouwhuis, H.Breuer, D.S.Brown, A.Bruell, R.V.Cadman, R.Carlini, N.S.Chant, A.Cochran, L.Cole, S.Danagoulian, D.B.Day, J.A.Dunne, D.Dutta, R.Ent, H.C.Fenker, B.Fox, L.Gan, H.Gao, K.Garrow, D.Gaskell, A.Gasparian, D.F.Geesaman, R.Gilman, C.Glashausser, P.Gueye, M.Harvey, R.J.Holt, H.E.Jackson, X.Jiang, C.E.Keppel, E.R.Kinney, Y.Liang, W.Lorenzon, A.F.Lung, D.J.Mack, P.E.Markowitz, J.Martin, K.McIlhany, D.McKee, D.G.Meekins, M.A.Miller, R.G.Milner, J.H.Mitchell, H.Mkrtchyan, B.A.Mueller, A.M.Nathan, G.Niculescu, I.Niculescu, T.G.O'Neill, V.Papavassiliou, S.F.Pate, R.B.Piercey, D.H.Potterveld, R.D.Ransome, J.Reinhold, E.Rollinde, P.Roos, A.Saha, A.J.Sarty, R.Sawafta, E.Segbefia, T.Shin, S.Stepanyan, S.Strauch, M.F.Sutter, V.Tadevosyan, L.Tang, R.Tieulent, A.Uzzle, W.F.Vulcan, S.A.Wood, F.Xiong, L.Yuan, M.Zeier, B.Zihlmann, V.Ziskin

Measurement of the High Energy Two-Body Deuteron Photodisintegration Differential Cross Section

NUCLEAR REACTIONS 2H(γ, p), E < 5.5 GeV; measured σ(E, θ); deduced angle-dependent scaling threshold.

doi: 10.1103/PhysRevLett.87.102302
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2001SC41      Nucl.Phys. A693, 533 (2001)

S.Schwarz, F.Ames, G.Audi, D.Beck, G.Bollen, C.De Coster, J.Dilling, O.Engels, R.Fossion, J.-E.Garcia Ramos, S.Henry, F.Herfurth, K.Heyde, A.Kellerbauer, H.-J.Kluge, A.Kohl, E.Lamour, D.Lunney, I.Martel, R.B.Moore, M.Oinonen, H.Raimbault-Hartmann, C.Scheidenberger, G.Sikler, J.Szerypo, C.Weber, and the ISOLDE Collaboration

Accurate Masses of Neutron-Deficient Nuclides Close to Z = 82

ATOMIC MASSES 179,180,181,182,183,184,185,185m,186,187,187m,188,189m,190,191,191m,192,193,193m,194,195,196,197,197m,200Hg, 196,198,204Pb, 197Bi, 198Po, 203At; measured masses. Penning trap.

doi: 10.1016/S0375-9474(01)00881-8
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2001SC54      Hyperfine Interactions 132, 337 (2001)

S.Schwarz, F.Ames, G.Audi, D.Beck, G.Bollen, J.Dilling, F.Herfurth, H.-J.Kluge, A.Kellerbauer, A.Kohl, D.Lunney, R.B.Moore, H.Raimbault-Hartmann, C.Scheidenberger, G.Sikler, J.Szerypo

Accurate Mass Determination of Neutron-Deficient Nuclides Close to Z = 82 with ISOLTRAP

ATOMIC MASSES 182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197Hg, 196,198Pb, 197Bi, 198Po, 203At; measured masses. 185,187,191,193,197Hg; measured isomeric states energies. Penning trap mass spectrometer, gas-filled radiofrequency quadrupole trap.

doi: 10.1023/A:1011996613609
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2001WE09      Phys.Rev. C63, 064001 (2001)

S.P.Wells, T.Averett, D.Barkhuff, D.H.Beck, E.J.Beise, C.Benson, H.Breuer, R.Carr, S.Covrig, J.DelCorso, G.Dodson, C.Eppstein, M.Farkhondeh, B.W.Filippone, T.A.Forest, P.Frasier, R.Hasty, T.M.Ito, C.Jones, W.Korsch, S.Kowalski, P.Lee, E.Maneva, K.McCarty, R.D.McKeown, J.Mikell, B.Mueller, P.Naik, M.L.Pitt, J.Ritter, V.Savu, D.T.Spayde, M.Sullivan, R.Tieulent, E.Tsentalovich, B.Yang, T.Zwart

Measurement of the Vector Analyzing Power in Elastic Electron-Proton Scattering as a Probe of the Double Virtual Compton Amplitude

NUCLEAR REACTIONS 1H(polarized e, e), E=200 MeV; measured azimuthal asymmetry, vector analyzing power; deduced two-photon exchange amplitude.

doi: 10.1103/PhysRevC.63.064001
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2000BE42      Eur.Phys.J. A 8, 307 (2000)

D.Beck, F.Ames, G.Audi, G.Bollen, F.Herfurth, H.-J.Kluge, A.Kohl, M.Konig, D.Lunney, I.Martel, R.B.Moore, H.Raimbault-Hartmann, E.Schark, S.Schwarz, M.de Saint Simon, J.Szerypo, and the ISOLDE Collaboration

Accurate Masses of Unstable Rare-Earth Isotopes by ISOLTRAP

ATOMIC MASSES 133Cs, 123,125,127Ba, 133,134,135,136,137Pr, 130,132,134,135,136,137,138Nd, 136,137,138,139,140,141,143Pm, 136,137,138,139,140,141,142,143Sm, 139,141,142,143,144,145,146,147,148,149,151,153Eu, 148,149,154Dy, 150Ho; measured mass. Penning trap.

COMPILATION Z=55-80; compiled, evaluated atomic mass data.

NUCLEAR REACTIONS 181Ta(p, X)133Ce/133Pr/133Nd/138Nd/138Pm/139Pm/140Pm/142Pm/139Sm/140Sm/141Sm/142Sm/143Sm/138Eu/140Eu/141Eu/142Eu/143Eu/144Eu/143Gd/144Tb/148Tb/150Tb/151Tb/148Dy/150Dy/151Dy/150Ho/151Ho/176Yb/168Lu/176W/176Ta, E=1 GeV; measured Eγ, secondary beam intensity yield. Isolde mass separator.

doi: 10.1007/s100500070085
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2000NI06      Phys.Rev.Lett. 85, 1182 (2000)

I.Niculescu, C.S.Armstrong, J.Arrington, K.A.Assamagan, O.K.Baker, D.H.Beck, C.W.Bochna, R.D.Carlini, J.Cha, C.Cothran, D.B.Day, J.A.Dunne, D.Dutta, R.Ent, V.V.Frolov, H.Gao, D.F.Geesaman, P.L.J.Gueye, W.Hinton, R.J.Holt, H.E.Jackson, C.E.Keppel, D.M.Koltenuk, D.J.Mack, D.G.Meekins, M.A.Miller, J.H.Mitchell, R.M.Mohring, G.Niculescu, D.Potterveld, J.W.Price, J.Reinhold, R.E.Segel, P.Stoler, L.Tang, B.P.Terburg, D.Van Westrum, W.F.Vulcan, S.A.Wood, C.Yan, B.Zeidman

Evidence for Valencelike Quark-Hadron Duality

NUCLEAR REACTIONS 1,2H(e, e');E=2.4-4 GeV; measured σ, structure function F2. Scaling trends discussed.

doi: 10.1103/PhysRevLett.85.1182
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2000NI07      Phys.Rev.Lett. 85, 1186 (2000)

I.Niculescu, C.S.Armstrong, J.Arrington, K.A.Assamagan, O.K.Baker, D.H.Beck, C.W.Bochna, R.D.Carlini, J.Cha, C.Cothran, D.B.Day, J.A.Dunne, D.Dutta, R.Ent, B.W.Filippone, V.V.Frolov, H.Gao, D.F.Geesaman, P.L.J.Gueye, W.Hinton, R.J.Holt, H.E.Jackson, C.E.Keppel, D.M.Koltenuk, D.J.Mack, D.G.Meekins, M.A.Miller, J.H.Mitchell, R.M.Mohring, G.Niculescu, D.Potterveld, J.W.Price, J.Reinhold, R.E.Segel, P.Stoler, L.Tang, B.P.Terburg, D.Van Westrum, W.F.Vulcan, S.A.Wood, C.Yan, B.Zeidman

Evidence Verification of Quark-Hadron Duality

NUCLEAR REACTIONS 1,2H(e, e');E=2.4-4 GeV; measured σ, structure function F2; deduced quark-hadron duality effects. Comparison with previous electron data and muon data.

doi: 10.1103/PhysRevLett.85.1186
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2000NO01      Phys.Rev. A61, 014501 (2000)

P.L.Norquist, D.R.Beck

Binding Energies, Hyperfine Structure, and Magnetic Dipole Decay Rates for Os- 5d76s2 4F Levels

NUCLEAR MOMENTS Os; calculated hfs constants, magnetic dipole decay rates. Relativistic configuration interaction.

ATOMIC PHYSICS Os; calculated hfs constants, magnetic dipole decay rates. Relativistic configuration interaction.

doi: 10.1103/PhysRevA.61.014501
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2000SE23      Hyperfine Interactions 129, 223 (2000)

N.Severijns, J.Deutsch, D.Beck, M.Beck, B.Delaure, T.Phalet, R.Prieels, P.Schuurmans, B.Vereecke, S.Versyck

Fundamental weak interaction studies using polarised nuclei and ion traps

RADIOACTIVITY 17F(β+), 118Sb(β+), (EC); measured polarization asymmetry correlation. Polarized nuclei.

doi: 10.1023/A:1012665917625
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1999AM05      Nucl.Phys. A651, 3 (1999)

F.Ames, G.Audi, D.Beck, G.Bollen, M.de Saint Simon, R.Jertz, H.-J.Kluge, A.Kohl, M.Konig, D.Lunney, I.Martel, R.B.Moore, T.Otto, Z.Patyk, H.Raimbault-Hartmann, G.Rouleau, G.Savard, E.Schark, S.Schwarz, L.Schweikhard, H.Stolzenberg, J.Szerypo, and the ISOLDE Collaboration

High-Accuracy Mass Determination of Unstable Cesium and Barium Isotopes

ATOMIC MASSES 117,118,119,120,122,123,124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142Cs, 123,124,125,126,127,128,131,138,139,140,141,142,143,144Ba; measured masses. Online mass spectrometry, Penning trap, least-squares adjustment of data. Macroscopic-microscopic model calculations.

doi: 10.1016/S0375-9474(99)00111-6
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1999ME24      Phys.Rev. C60, 052201 (1999)

D.G.Meekins, D.J.Abbott, A.Ahmidouch, C.S.Armstrong, J.Arrington, K.Assamagan, O.K.Baker, S.P.Barrow, D.P.Beatty, D.H.Beck, S.Y.Beedoe, E.J.Beise, J.E.Belz, C.Bochna, P.E.Bosted, E.J.Brash, H.Breuer, R.V.Cadman, L.Cardman, R.D.Carlini, J.Cha, N.S.Chant, G.Collins, C.Cothran, W.J.Cummings, S.Danagoulian, F.A.Duncan, J.A.Dunne, D.Dutta, T.Eden, R.Ent, B.W.Filippone, T.A.Forest, H.T.Fortune, V.V.Frolov, H.Gao, D.F.Geesaman, R.Gilman, P.L.J.Gueye, K.K.Gustafsson, J.-O.Hansen, M.Harvey, W.Hinton, R.J.Holt, H.E.Jackson, C.E.Keppel, M.A.Khandaker, E.R.Kinney, A.Klein, D.M.Koltenuk, G.Kumbartzki, A.F.Lung, D.J.Mack, R.Madey, P.Markowitz, K.W.McFarlane, R.D.McKeown, Z.-E.Meziani, M.A.Miller, J.H.Mitchell, H.G.Mkrtchyan, R.M.Mohring, J.Napolitano, A.M.Nathan, G.Niculescu, I.Niculescu, T.G.O'Neill, B.R.Owen, S.F.Pate, D.H.Potterveld, J.W.Price, G.L.Rakness, R.D.Ransome, J.Reinhold, P.M.Rutt, C.W.Salgado, G.Savage, R.E.Segel, N.Simicevic, P.Stoler, R.Suleiman, L.Tang, B.P.Terburg, D.van Westrum, W.F.Vulcan, S.E.Williamson, M.T.Witkowski, S.A.Wood, C.Yan, B.Zeidman

Coherent π0 Photoproduction on the Deuteron up to 4 GeV

NUCLEAR REACTIONS 2H(γ, π0), E=0.8-4.0 GeV bremsstrahlung; measured σ(E, θ). Comparison with previous data, model predictions.

doi: 10.1103/PhysRevC.60.052201
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1998BO29      Phys.Rev.Lett. 81, 4576 (1998)

C.Bochna, B.P.Terburg, D.J.Abbott, A.Ahmidouch, C.S.Armstrong, J.Arrington, K.A.Assamagan, O.K.Baker, S.P.Barrow, D.P.Beatty, D.H.Beck, S.Y.Beedoe, E.J.Beise, J.E.Belz, P.E.Bosted, E.J.Brash, H.Breuer, R.V.Cadman, L.Cardman, R.D.Carlini, J.Cha, N.S.Chant, G.Collins, C.Cothran, W.J.Cummings, S.Danagoulian, F.A.Duncan, J.A.Dunne, D.Dutta, T.Eden, R.Ent, B.W.Filippone, T.A.Forest, H.T.Fortune, V.V.Frolov, H.Gao, D.F.Geesaman, R.Gilman, P.L.J.Gueye, K.K.Gustafsson, J.-O.Hansen, M.Harvey, W.Hinton, R.J.Holt, H.E.Jackson, C.E.Keppel, M.A.Khandaker, E.R.Kinney, A.Klein, D.M.Koltenuk, G.Kumbartzki, A.F.Lung, D.J.Mack, R.Madey, P.Markowitz, K.W.McFarlane, R.D.McKeown, D.G.Meekins, Z.-E.Meziani, M.A.Miller, J.H.Mitchell, H.G.Mkrtchyan, R.M.Mohring, J.Napolitano, A.M.Nathan, G.Niculescu, I.Niculescu, T.G.O'Neill, B.R.Owen, S.F.Pate, D.H.Potterveld, J.W.Price, G.L.Rakness, R.Ransome, J.Reinhold, P.M.Rutt, C.W.Salgado, G.Savage, R.E.Segel, N.Simicevic, P.Stoler, R.Suleiman, L.Tang, D.van Westrum, W.F.Vulcan, S.Williamson, M.T.Witkowski, S.A.Wood, C.Yan, B.Zeidman

Measurements of Deuteron Photodisintegration up to 4.0 GeV

NUCLEAR REACTIONS 2H(γ, p), E=0.4-4 GeV; measured σ(θ). Quark-gluon string model, reduced nuclear amplitude analysis, asymptotic meson exchange model.

doi: 10.1103/PhysRevLett.81.4576
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1997BE63      Nucl.Phys. A626, 343c (1997)

D.Beck, and the ISOLDE Collaboration

Direct Mass Measurements of Unstable Rare Earth Isotopes with the ISOLTRAP Mass Spectrometer

ATOMIC MASSES 123,125,127,131Ba, 133,134,135,136,137Pr, 132,134,135,136,137,138Nd, 136,137,138,139,140m,141,143Pm, 136,137,138,139,140,141g,141m,142,143Sm, 139,141,142m,143,144,145,146,147,148,149Eu, 148,149,154Dy, 150Ho; measured cyclotron frequency; deduced masses. Penning trap mass spectrometer, on-line isotope separation.

doi: 10.1016/S0375-9474(97)00556-3
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1997BE81      Hyperfine Interactions 108, 219 (1997)

D.Beck, and the ISOLDE Collaboration

Exploring New Mass Regions with the ISOLTRAP Spectrometer

ATOMIC MASSES 136,137,138,139,140,141,142,143Sm; measured atomic masses. Penning trap mass spectrometer.

doi: 10.1023/A:1012658628740
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1997MU11      Phys.Rev.Lett. 78, 3824 (1997)

B.Mueller, D.H.Beck, E.J.Beise, E.Candell, L.Cardman, R.Carr, R.C.DiBari, G.Dodson, K.Dow, F.Duncan, M.Farkhondeh, B.W.Filippone, T.Forest, H.Gao, W.Korsch, S.Kowalski, A.Lung, R.D.McKeown, R.Mohring, J.Napolitano, D.Nilsson, M.Pitt, N.Simicevic, B.Terburg, S.P.Wells, and the SAMPLE Collaboration

Measurement of the Proton's Neutral Weak Magnetic Form Factor

NUCLEAR REACTIONS 1H(polarized e, e), E=200 MeV; measured parity violating asymmetry; deduced neutral weak magnetic form factor.

doi: 10.1103/PhysRevLett.78.3824
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1996OM02      Phys.Rev. A54, 3894 (1996)

S.M.O'Malley, D.R.Beck

Relativistic-Configuration-Interaction Results for the Hyperfine-Structure Constants of 133Cs II and 137Ba III 5p5(5d+6s+6p) Levels

NUCLEAR MOMENTS 133Cs, 137Ba; calculated hfs, hyperfine constants. Relativistic configuration interactions.

doi: 10.1103/PhysRevA.54.3894
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1996TR04      Phys.Rev.Lett. 76, 885 (1996)

C.Tripp, G.S.Adams, D.Beck, K.Dow, J.M.Finn, V.Frolov, O.Hansen, T.Kobayashi, J.McIntyre, R.Lourie, M.Nozar, S.Nagorny, J.Shaw, P.Stoler, T.Tamae, D.Tieger, W.Turchinetz, G.Warren, T.P.Welch, E.J.Winhold, M.Witkowski, B.Wojtsekhowski

Observation of Isovector-Isoscalar Two-Body Currents in Deuteron Knockout from 3He

NUCLEAR REACTIONS 3He(e, e'd), E=382.5, 265.3 MeV; measured σ(E(e), θ(e), θ(d)) vs recoil p(p); deduced longitudinal to transverse response function ratio.

doi: 10.1103/PhysRevLett.76.885
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