NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = O.Arndt Found 25 matches. 2012QU01 Phys.Rev. C 85, 035807 (2012) M.Quinn, A.Aprahamian, J.Pereira, R.Surman, O.Arndt, T.Baumann, A.Becerril, T.Elliot, A.Estrade, D.Galaviz, T.Ginter, M.Hausmann, S.Hennrich, R.Kessler, K.-L.Kratz, G.Lorusso, P.F.Mantica, M.Matos, F.Montes, B.Pfeiffer, M.Portillo, H.Schatz, F.Schertz, L.Schnorrenberger, E.Smith, A.Stolz, W.B.Walters, A.Wohr β decay of nuclei around 90Se: Search for signatures of a N=56 subshell closure relevant to the r process NUCLEAR REACTIONS 9Be(136Xe, X)86As/87As/88As/88Se/89Se/90Se/90Br/91Br/92Br/93Br/91Kr/92Kr/93Kr/94Kr/95Kr/93Rb/94Rb/95Rb/96Rb/97Rb/95Sr/96Sr/97Sr/98Sr/99Sr/97Y/98Y/99Y/100Y/101Y/100Zr/101Zr/102Zr/103Zr, E=120 MeV/nucleon; measured fragment spectra by energy loss and time-of-flight, total kinetic energies (TKE) of 97,98,99Sr fragments in 36+, 37+, 38+ charge states, half-lives by fragment-β correlations. Beta Counting System (BCS) at NSCL. RADIOACTIVITY 87,88As, 88,89,90Se, 90,91,92,93Br, 93,94,95Kr, 95,96,97Rb, 96,97,98,99Sr, 99,100,101Y(β-)[from 9Be(136Xe, X), E=120 MeV/nucleon]; measured Eβ, Eγ, (fragment)β correlations, half-lives. Beta Counting System (BCS) at NSCL and SEGA array. Maximum likelihood and least-squares analyses for half-lives. Comparison of measured half-lives with QRPA calculations used in r process, and with previous measurements. Role of g9/2 proton and h11/2 neutron intruders. No evidence of N=56 subshell closure in 90Se. Relevance to r-process nuclei.
doi: 10.1103/PhysRevC.85.035807
2012WE08 J.Phys.:Conf.Ser. 337, 012018 (2012) L.Weissman, U.Bergmann, J.Cederkall, L.Fraile, S.Franchoo, H.O.U.Fynbo, T.Fritioff, U.Koster, O.Arnd, I.Dillman, O.Hallmann, K.-L.Kratz, B.Pfeiffer, A.Wohr, L.Gaudefroy, O.Sorlin, for the ISOLDE collaboration Decay of 48-50Ar isotopes RADIOACTIVITY 48,49,50Ar(β-)[from mass separator]; measured β-gated Eγ, Iγ, γγ-coin, Eβ, Iβ, βγ-coin using βγ detector, β telescope and secondary ECR ion source; deduced T1/2.
doi: 10.1088/1742-6596/337/1/012018
2011AR18 Phys.Rev. C 84, 061307 (2011) O.Arndt, K.-L.Kratz, W.B.Walters, K.Farouqi, U.Koster, V.Fedosseev, S.Hennrich, C.J.Jost, A.Wohr, A.A.Hecht, B.Pfeiffer, J.Shergur, N.Hoteling Decay of the r-process nuclides 137, 138, 139Sb, and the A=130 solar r-process abundance peak RADIOACTIVITY 137,138,139Sb, 136,137Sn(β-), (β-n); measured E(n), I(n), half-lives, β-delayed neutron emission probability Pn using RILIS source and high-resolution mass separator at ISOLDE-CERN facility. 134,135,136,137,138,139,140Sb(β-), (β-n); calculated half-lives and β-delayed neutron probabilities for spherical and non-spherical shapes. Calculated r-process residual isotopic abundance plot using new data.
doi: 10.1103/PhysRevC.84.061307
2011PE34 J.Phys.:Conf.Ser. 312, 042019 (2011) J.Pereira, A.Aprahamian, O.Arndt, A.Becerril, T.Elliot, A.Estrade, D.Galaviz, S.Hennrich, P.Hosmer, R.Kessler, K.-L.Kratz, G.Lorusso, P.F.Mantica, M.Matos, F.Montes, B.Pfeiffer, M.Quinn, P.Santi, H.Schatz, F.Schertz, L.Schnorrenberger, E.Smith, A.Stolz, W.B.Walters, A.Wohr β-decay measurements of A simeq 70 ≈ 110 r-process nuclei at the National Superconducting Cyclotron Laboratory RADIOACTIVITY 106,107,108,109Nb, 108,109,110,111Mo(β-); compiled T1/2; calculated T1/2, Solar system r-process abundances using new T1/2.
doi: 10.1088/1742-6596/312/4/042019
2010HO12 Phys.Rev. C 82, 025806 (2010) P.Hosmer, H.Schatz, A.Aprahamian, O.Arndt, R.R.C.Clement, A.Estrade, K.Farouqi, K.-L.Kratz, S.N.Liddick, A.F.Lisetskiy, P.F.Mantica, P.Moller, W.F.Mueller, F.Montes, A.C.Morton, M.Ouellette, E.Pellegrini, J.Pereira, B.Pfeiffer, P.Reeder, P.Santi, M.Steiner, A.Stolz, B.E.Tomlin, W.B.Walters, A.Wohr Half-lives and branchings for β-delayed neutron emission for neutron-rich Co-Cu isotopes in the r-process RADIOACTIVITY 73,74,75Co, 75,76,77,78Ni, 76,77,78,79,80Cu, 79,80,81Zn, 81,82Ga(β-), (β-n)[from Be(86Kr, X), E=140 MeV/nucleon]; measured β spectra, βn-coin, neutron spectra, half-lives, delayed neutron-emission probabilities; calculated half-lives, P(n) using QRPA, CQRPA and OXBASH shell model. Discussed effects on various types of models for the rapid neutron-capture process (r-process) in nucleosynthesis. A=1-210; calculated abundances with classical r-process and HEW models using known decay data. 78Ni(β-); calculated Gamow-Teller strengths, effect on abundances.
doi: 10.1103/PhysRevC.82.025806
2009AR04 Acta Phys.Pol. B40, 437 (2009) O.Arndt, S.Hennrich, N.Hoteling, C.J.Jost, B.E.Tomlin, J.Shergur, K.-L.Kratz, P.F.Mantica, B.A.Brown, R.V.F.Janssens, W.B.Walters, B.Pfeiffer, A.Wohr, S.Zhu, R.Broda, M.P.Carpenter, B.Fornal, A.A.Hecht, W.Krolas, T.Lauritsen, T.Pawlat, J.Pereira, D.Seweryniak, I.Stefanescu, J.R.Stone, J.Wrzesinski Structure of Neutron-Rich Odd-Mass 127, 129, 131In Populated in the Decay of 127, 129, 131Cd RADIOACTIVITY 127,129,131Cd(β-); measured Iγ, Eγ; deduced Jπ, level scheme. Comparison with calculations.
2009PE06 Phys.Rev. C 79, 035806 (2009) J.Pereira, S.Hennrich, A.Aprahamian, O.Arndt, A.Becerril, T.Elliot, A.Estrade, D.Galaviz, R.Kessler, K.-L.Kratz, G.Lorusso, P.F.Mantica, M.Matos, P.Moller, F.Montes, B.Pfeiffer, H.Schatz, F.Schertz, L.Schnorrenberger, E.Smith, A.Stolz, M.Quinn, W.B.Walters, A.Wohr β-decay half-lives and β-delayed neutron emission probabilities of nuclei in the region A ≤ 110, relevant for the r process RADIOACTIVITY 100,101,102,103,104,105Y, 103,104,105,106,107Zr, 106,107,108,109Nb, 108,109,110,111Mo, 109,110,111,112,113Tc(β-), (β-n)[from 9Be(136Xe, X), E=120 MeV/nucleon]; measured fragments, neutrons, β, (fragment)β-coin, half-lives; deduced delayed neutron-emission probabilities. Comparisons with quasiparticle random phase approximation (QRPA03 and QRPA06) calculations. Discussed relevance to r-process nuclei.
doi: 10.1103/PhysRevC.79.035806
2008PE17 Nucl.Phys. A805, 470c (2008) J.Pereira, A.Aprahamian, O.Arndt, A.Becerril, T.Elliot, A.Estrade, D.Galaviz, S.Hennrich, P.Hosmer, L.Schnorrenberger, R.Kessler, K.-L.Kratz, G.Lorusso, P.F.Mantica, M.Matos, F.Montes, B.Pfeiffer, M.Quinn, P.Santi, H.Schatz, F.Schertz, E.Smith, B.E.Tomlin, W.B.Walters, A.Wohr β-decay studies of r-process nuclei at NSCL
doi: 10.1016/j.nuclphysa.2008.02.268
2007MA40 Acta Phys.Pol. B38, 1213 (2007) H.Mach, L.M.Fraile, O.Arndt, A.Blazhev, N.Boelaert, M.J.G.Borge, R.Boutami, H.Bradley, N.Braun, B.A.Brown, P.A.Butler, A.Covello, Z.Dlouhy, C.Fransen, H.O.U.Fynbo, A.Gargano, Ch.Hinke, P.Hoff, A.Joinet, A.Jokinen, J.Jolie, U.Koster, A.Korgul, K.-L.Kratz, T.Kroll, W.Kurcewicz, J.Nyberg, E.-M.Reillo, E.Ruchowska, W.Schwerdtfeger, G.S.Simpson, M.Stanoiu, O.Tengblad, P.G.Thirolf, W.B.Walters The Single-Particle and Collective Features in the Nuclei Just Above 132Sn RADIOACTIVITY 136Sn(β-); measured Eγ, Iγ, γγ-coinc. 135Sb deduced levels, B(E2).
2007WH01 Phys.Rev. C 76, 057303 (2007) E.R.White, H.Mach, L.M.Fraile, U.Koster, O.Arndt, A.Blazhev, N.Boelaert, M.J.G.Borge, R.Boutami, H.Bradley, N.Braun, Z.Dlouhy, C.Fransen, H.O.U.Fynbo, Ch.Hinke, P.Hoff, A.Joinet, A.Jokinen, J.Jolie, A.Korgul, K.-L.Kratz, T.Kroll, W.Kurcewicz, J.Nyberg, E.-M.Reillo, E.Ruchowska, W.Schwerdtfeger, G.S.Simpson, M.Stanoiu, O.Tengblad, P.G.Thirolf, V.Ugryumov, W.B.Walters Lifetime measurement of the 167.1 keV state in 41Ar RADIOACTIVITY 41Cl(β-) [from U(p, X), E=1.4 GeV]; measured Eγ, Iγ, γγ-coin, βγγ-coin, βγ(t). 41Ar; measured half-lives of isomeric states; deduced levels, J, π, multipolarities, B(E2), B(M1).
doi: 10.1103/PhysRevC.76.057303
2006MO07 Phys.Rev. C 73, 035801 (2006) F.Montes, A.Estrade, P.T.Hosmer, S.N.Liddick, P.F.Mantica, A.C.Morton, W.F.Mueller, M.Ouellette, E.Pellegrini, P.Santi, H.Schatz, A.Stolz, B.E.Tomlin, O.Arndt, K.-L.Kratz, B.Pfeiffer, P.Reeder, W.B.Walters, A.Aprahamian, A.Wohr β-decay half-lives and β-delayed neutron emission probabilities for neutron rich nuclei close to the N = 82 r-process path RADIOACTIVITY 114,115Tc, 114,115,116,117,118Ru, 116,117,118,119,120,121Rh, 119,120,121,122,123,124Pd, 121,122,123,124Ag(β-) [from Be(136Xe, X)]; measured T1/2. 116,117,118,119,120Rh, 121,122,123Pd, 122,123,124Ag(β-n); measured β-delayed neutron emission probability. Astrophysical implications discussed.
doi: 10.1103/PhysRevC.73.035801
2005HO08 Phys.Rev.Lett. 94, 112501 (2005) P.T.Hosmer, H.Schatz, A.Aprahamian, O.Arndt, R.R.C.Clement, A.Estrade, K.-L.Kratz, S.N.Liddick, P.F.Mantica, W.F.Mueller, F.Montes, A.C.Morton, M.Ouellette, E.Pellegrini, B.Pfeiffer, P.Reeder, P.Santi, M.Steiner, A.Stolz, B.E.Tomlin, W.B.Walters, A.Wohr Half-Life of the Doubly Magic r-Process Nucleus 78Ni RADIOACTIVITY 75,76,77,78Ni, 77,78Cu(β-) [from Be(86Kr, X)]; measured T1/2. Astrophysical implications discussed.
doi: 10.1103/PhysRevLett.94.112501
2005KA45 Eur.Phys.J. A 25, Supplement 1, 117 (2005) T.Kautzsch, A.Wohr, W.B.Walters, K.-L.Kratz, B.Pfeiffer, M.Hannawald, J.Shergur, O.Arndt, S.Hennrich, S.Falahat, T.Griesel, O.Keller, A.Aprahamian, B.A.Brown, P.F.Mantica, M.A.Stoyer, H.L.Ravn, for the ISOLDE IS333 and Rochester CHICO/Gammasphere Collaborations Structure of neutron-rich even-even 124, 126Cd RADIOACTIVITY 124,126Ag(β-); measured Eγ, Iγ, γγ-coin following decay of mass-separated sources. 124,126Cd deduced levels, J, π. Comparison with shell-model predictions.
doi: 10.1140/epjad/i2005-06-197-6
2005KO43 Eur.Phys.J. A 25, Supplement 1, 729 (2005) U.Koster, O.Arndt, U.C.Bergmann, R.Catherall, J.Cederkall, I.Dillmann, M.Dubois, F.Durantel, L.Fraile, S.Franchoo, G.Gaubert, L.Gaudefroy, O.Hallmann, C.Huet-Equilbec, B.Jacquot, P.Jardin, K.L.Kratz, N.Lecesne, R.Leroy, A.Lopez, L.Maunoury, J.Y.Pacquet, B.Pfeiffer, M.G.Saint-Laurent, C.Stodel, A.C.C.Villari, L.Weissman ISOL beams of neutron-rich oxygen isotopes NUCLEAR REACTIONS U(p, X)19O/20O/21O/22O, E=1.4GeV; measured yields.
doi: 10.1140/epjad/i2005-06-199-4
2005KR20 Eur.Phys.J. A 25, Supplement 1, 633 (2005) K.-L.Kratz, B.Pfeiffer, O.Arndt, S.Hennrich, A.Wohr, and the ISOLDE/IS333/IS378/IS393 Collaborations r-process isotopes in the 132Sn region
doi: 10.1140/epjad/i2005-06-157-2
2005MO30 Nucl.Phys. A758, 643c (2005) F.Montes, H.Schatz, A.Aprahamian, O.Arndt, A.Estrade, K.-L.Kratz, S.N.Liddick, P.F.Mantica, W.F.Mueller, P.Hosmer, A.C.Morton, M.Ouellette, E.Pellegrini, B.Pfeiffer, P.Reeder, P.Santi, A.Stolz, B.E.Tomlin, W.B.Walters, A.Wohr β-Decay Studies Close to the N=82 r-process Path RADIOACTIVITY 119Rh(β-) [from Be(136Xe, X)]; measured T1/2.
doi: 10.1016/j.nuclphysa.2005.05.188
2005SC28 Eur.Phys.J. A 25, Supplement 1, 639 (2005) H.Schatz, P.T.Hosmer, A.Aprahamian, O.Arndt, R.R.C.Clement, A.Estrade, K.-L.Kratz, S.N.Liddick, P.F.Mantica, W.F.Mueller, F.Montes, A.C.Morton, M.Ouellette, E.Pellegrini, B.Pfeiffer, P.Reeder, P.Santi, M.Steiner, A.Stolz, B.E.Tomlin, W.B.Walters, A.Wohr The half-life of the doubly-magic r-process nucleus 78Ni RADIOACTIVITY 78Ni(β-) [from 86Kr fragmentation]; measured T1/2. Comparison with model predictions, astrophysical implications discussed.
doi: 10.1140/epjad/i2005-06-069-1
2005SH23 Phys.Rev. C 71, 064321 (2005) J.Shergur, A.Wohr, W.B.Walters, K.-L.Kratz, O.Arndt, B.A.Brown, J.Cederkall, I.Dillmann, L.M.Fraile, P.Hoff, A.Joinet, U.Koster, B.Pfeiffer Level structure of odd-odd 134Sb populated in the β- decays of 134, 135Sn RADIOACTIVITY 134Sn(β-); 135Sn(β-), (β-n); measured Eγ, Iγ, βγ-, γγ-coin. 134Sb deduced levels, J, π, β-decaying isomeric state. Mass separator, shell model calculations.
doi: 10.1103/PhysRevC.71.064321
2005SH36 Phys.Rev. C 72, 024305 (2005) J.Shergur, A.Wohr, W.B.Walters, K.-L.Kratz, O.Arndt, B.A.Brown, J.Cederkall, I.Dillmann, L.M.Fraile, P.Hoff, A.Joinet, U.Koster, B.Pfeiffer Identification of shell-model states in 135Sb populated via β- decay of 135Sn RADIOACTIVITY 135Sn(β-) [from U(n, F)]; measured Eγ, Iγ, γγ-coin. 135Sb deduced levels, J, π. Resonance ionization, mass separator. Comparisons with shell-model predictions.
doi: 10.1103/PhysRevC.72.024305
2005SH53 Eur.Phys.J. A 25, Supplement 1, 121 (2005) J.Shergur, N.Hoteling, A.Wohr, W.B.Walters, O.Arndt, B.A.Brown, C.N.Davids, D.J.Dean, K.-L.Kratz, B.Pfeiffer, D.Seweryniak, and the ISOLDE Collaboration New level information on Z = 51 isotopes, 111Sb60 and 134, 135Sb83, 84 RADIOACTIVITY 111Te(β+) [from 58Ni(56Fe, 2pn)]; 135Sn(β-), (β-n) [from U(p, F), E=1.4 GeV]; measured Eγ, Iγ, γγ-coin following decay of mass-separated sources. 111,134,135Sb deduced levels, J, π. Comparison with model calculations.
doi: 10.1140/epjad/i2005-06-071-7
2005WE06 J.Phys.(London) G31, 553 (2005) L.Weissman, A.F.Lisetskiy, O.Arndt, U.Bergmann, B.A.Brown, J.Cederkall, I.Dillmann, O.Hallmann, L.Fraile, S.Franchoo, L.Gaudefroy, U.Koster, K.-L.Kratz, B.Pfeiffer, O.Sorlin, and the ISOLDE Collaboration β-decay of 22O RADIOACTIVITY 22O, 22F(β-) [from U(p, X) and subsequent decay]; measured Eγ, Iγ, γγ-, βγ-coin, T1/2. 22F deduced levels, J, π, β-feeding intensities. 22Ne deduced transitions. Mass separator, comparison with model predictions.
doi: 10.1088/0954-3899/31/7/002
2004ST28 Nucl.Phys. A746, 54c (2004) A.Stolz, A.Estrade, A.D.Davies, T.N.Ginter, P.T.Hosmer, E.Kwan, S.N.Liddick, P.F.Mantica, T.J.Mertzimekis, F.A.Montes, D.J.Morrissey, A.C.Morton, M.Ouellette, E.Pellegrini, P.Santi, H.Schatz, M.Steiner, A.E.Stuchbery, B.E.Tomlin, W.B.Walters, A.Woehr, O.Arndt, K.-L.Kratz, B.Pfeiffer, P.Reeder Radioactive ion beams in the region of 100Sn and 78Ni at the NSCL NUCLEAR REACTIONS Be, Ni, Nb(124Xe, X), E=140 MeV/nucleon; measured fragments isotopic yields, prompt and delayed (particle)γ-coin. Be(86Kr, X), E=140 MeV/nucleon; measured fragments isotopic yields; deduced evidence for 78Ni.
doi: 10.1016/j.nuclphysa.2004.09.017
2004WE09 Phys.Rev. C 70, 024304 (2004) L.Weissman, O.Arndt, U.Bergmann, A.Brown, R.Catherall, J.Cederkall, I.Dillmann, O.Hallmann, L.Fraile, S.Franchoo, L.Gaudefroy, U.Koster, K.-L.Kratz, B.Pfeiffer, O.Sorlin β decay of 47Ar RADIOACTIVITY 47Ar(β-) [from 238U(p, X)]; measured Eγ, Iγ, T1/2; deduced logft, neutron emission probability upper limit. 47Ar deduced ground-state J, π. 47K deduced levels, J, π.
doi: 10.1103/PhysRevC.70.024304
2004WE11 Phys.Rev. C 70, 057306 (2004) L.Weissman, O.Arndt, U.Bergmann, J.Cederkall, I.Dillmann, O.Hallmann, L.Fraile, S.Franchoo, L.Gaudefroy, U.Koster, K.L.Kratz, A.F.Lisetskiy, B.Pfeiffer, O.Sorlin, S.Tabor β decay of 26Ne RADIOACTIVITY 26Ne(β-) [from U(p, F)]; measured β-delayed Eγ, Iγ, γγ-, βγ-coin, T1/2; deduced log ft. 26Na deduced levels, J, π, β-feeding intensities.
doi: 10.1103/PhysRevC.70.057306
2003DI06 Phys.Rev.Lett. 91, 162503 (2003) I.Dillmann, K.-L.Kratz, A.Wohr, O.Arndt, B.A.Brown, P.Hoff, M.Hjorth-Jensen, U.Koster, A.N.Ostrowski, B.Pfeiffer, D.Seweryniak, J.Shergur, W.B.Walters, and the ISOLDE Collaboration N = 82 Shell Quenching of the Classical r-Process "Waiting-Point" Nucleus 130Cd RADIOACTIVITY 130Cd(β-) [from U(n, F)]; measured Eγ, Eβ, γγ-, βγ-coin; deduced Qβ. 130In deduced levels, J, π, configurations, shell quenching. Astrophysical implications discussed. Resonance-ionization laser ion source.
doi: 10.1103/PhysRevLett.91.162503
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