Decay of the $r$-process nuclides $^{137, 138, 139}$Sb, and the A=130 solar $r$-process abundance peak

Half-life (T(1/2)) and beta-delayed neutron branching (P(n)) values of 492(25) ms and 49(8)\%, 350(15) ms and 72(8)\%, and 93(13) ms and 90(10)\% for the r-process nuclei (137,138,139)Sb, respectively, have been measured at the CERN On-Line Isotope Mass Separator (ISOLDE) facility by counting beta-d...

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Autores principales: Arndt, O, Jost, C J, Farouqi, K, Koester, U, Kratz, K-L, Pfeiffer, B, Walters, W B, Hoteling, N, Fedosseev, V, Hennrich, S, Woehr, A, Shergur, J, Hecht, A A
Lenguaje:eng
Publicado: 2011
Materias:
Nuclear Physics - Experiment
Acceso en línea:https://dx.doi.org/10.1103/PhysRevC.84.061307
http://cds.cern.ch/record/1443505
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author Arndt, O
Jost, C J
Farouqi, K
Koester, U
Kratz, K-L
Pfeiffer, B
Walters, W B
Hoteling, N
Fedosseev, V
Hennrich, S
Woehr, A
Shergur, J
Hecht, A A
author_facet Arndt, O
Jost, C J
Farouqi, K
Koester, U
Kratz, K-L
Pfeiffer, B
Walters, W B
Hoteling, N
Fedosseev, V
Hennrich, S
Woehr, A
Shergur, J
Hecht, A A
author_sort Arndt, O
collection CERN
description Half-life (T(1/2)) and beta-delayed neutron branching (P(n)) values of 492(25) ms and 49(8)\%, 350(15) ms and 72(8)\%, and 93(13) ms and 90(10)\% for the r-process nuclei (137,138,139)Sb, respectively, have been measured at the CERN On-Line Isotope Mass Separator (ISOLDE) facility by counting beta-delayed neutrons. More precise T(1/2) and P(n) values of 300(15) ms and 27(4)\%, and 273(7) ms and 50(8)\% for (136,137)Sn, respectively, have also been measured. The sources were prepared by using the selective ionization of Sb or Sn with the Resonance Ionization Laser Ion Source and the high-resolution mass separator. The new data for Sb isotopes are compared with calculated T(1/2) and P(n) values for both spherical and nonspherical shapes. The data have been incorporated into parametrized nucleosynthesis calculations of the r process in high-entropy winds of core-collapse supernovae in order to study the properties of the A = 130 solar-system r-process abundance peak.
id cern-1443505
institution Organización Europea para la Investigación Nuclear
language eng
publishDate 2011
record_format invenio
spelling cern-14435052019-09-30T06:29:59Zdoi:10.1103/PhysRevC.84.061307http://cds.cern.ch/record/1443505engArndt, OJost, C JFarouqi, KKoester, UKratz, K-LPfeiffer, BWalters, W BHoteling, NFedosseev, VHennrich, SWoehr, AShergur, JHecht, A ADecay of the $r$-process nuclides $^{137, 138, 139}$Sb, and the A=130 solar $r$-process abundance peakNuclear Physics - ExperimentHalf-life (T(1/2)) and beta-delayed neutron branching (P(n)) values of 492(25) ms and 49(8)\%, 350(15) ms and 72(8)\%, and 93(13) ms and 90(10)\% for the r-process nuclei (137,138,139)Sb, respectively, have been measured at the CERN On-Line Isotope Mass Separator (ISOLDE) facility by counting beta-delayed neutrons. More precise T(1/2) and P(n) values of 300(15) ms and 27(4)\%, and 273(7) ms and 50(8)\% for (136,137)Sn, respectively, have also been measured. The sources were prepared by using the selective ionization of Sb or Sn with the Resonance Ionization Laser Ion Source and the high-resolution mass separator. The new data for Sb isotopes are compared with calculated T(1/2) and P(n) values for both spherical and nonspherical shapes. The data have been incorporated into parametrized nucleosynthesis calculations of the r process in high-entropy winds of core-collapse supernovae in order to study the properties of the A = 130 solar-system r-process abundance peak.oai:cds.cern.ch:14435052011
spellingShingle Nuclear Physics - Experiment
Arndt, O
Jost, C J
Farouqi, K
Koester, U
Kratz, K-L
Pfeiffer, B
Walters, W B
Hoteling, N
Fedosseev, V
Hennrich, S
Woehr, A
Shergur, J
Hecht, A A
Decay of the $r$-process nuclides $^{137, 138, 139}$Sb, and the A=130 solar $r$-process abundance peak
title Decay of the $r$-process nuclides $^{137, 138, 139}$Sb, and the A=130 solar $r$-process abundance peak
title_full Decay of the $r$-process nuclides $^{137, 138, 139}$Sb, and the A=130 solar $r$-process abundance peak
title_fullStr Decay of the $r$-process nuclides $^{137, 138, 139}$Sb, and the A=130 solar $r$-process abundance peak
title_full_unstemmed Decay of the $r$-process nuclides $^{137, 138, 139}$Sb, and the A=130 solar $r$-process abundance peak
title_short Decay of the $r$-process nuclides $^{137, 138, 139}$Sb, and the A=130 solar $r$-process abundance peak
title_sort decay of the $r$-process nuclides $^{137, 138, 139}$sb, and the a=130 solar $r$-process abundance peak
topic Nuclear Physics - Experiment
url https://dx.doi.org/10.1103/PhysRevC.84.061307
http://cds.cern.ch/record/1443505
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