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First Measurement of Beta Decay Half-lives in Neutron-rich Tl and Bi Isotopes

Benzoni, G.; Morales, A. I.; Valiente-Dobon, J. J.; Gottardo, A.; Bracco, A.; Camera, F.; Crespi, F. C. L.; Corsi, A. M.; Leoni, S. and Million, B., et al. (2012) In Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics 715(4-5). p.293-297
Abstract
Neutron-rich isotopes around lead, beyond N = 126, have been studied exploiting the fragmentation of an uranium primary beam at the FRS-RISING setup at GSI. For the first time beta-decay half-lives of Bi-219 and Tl-211,Tl-212,Tl-213 isotopes have been derived. The half-lives have been extracted using a numerical simulation developed for experiments in high-background conditions. Comparison with state of the art models used in r-process calculations is given, showing a systematic underestimation of the experimental values, at variance from close-lying nuclei. (c) 2012 Elsevier B.V. All rights reserved.
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publication status
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Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics
volume
715
issue
4-5
pages
293 - 297
publisher
Elsevier
external identifiers
  • wos:000308617500003
  • scopus:84865358402
ISSN
0370-2693
DOI
10.1016/j.physletb.2012.07.063
language
English
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yes
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34b6cb54-a840-452e-a218-5ae866ba6eb5 (old id 3139055)
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2012-11-26 12:15:57
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@article{34b6cb54-a840-452e-a218-5ae866ba6eb5,
  abstract     = {Neutron-rich isotopes around lead, beyond N = 126, have been studied exploiting the fragmentation of an uranium primary beam at the FRS-RISING setup at GSI. For the first time beta-decay half-lives of Bi-219 and Tl-211,Tl-212,Tl-213 isotopes have been derived. The half-lives have been extracted using a numerical simulation developed for experiments in high-background conditions. Comparison with state of the art models used in r-process calculations is given, showing a systematic underestimation of the experimental values, at variance from close-lying nuclei. (c) 2012 Elsevier B.V. All rights reserved.},
  author       = {Benzoni, G. and Morales, A. I. and Valiente-Dobon, J. J. and Gottardo, A. and Bracco, A. and Camera, F. and Crespi, F. C. L. and Corsi, A. M. and Leoni, S. and Million, B. and Nicolini, R. and Wieland, O. and Gadea, A. and Lunardi, S. and Boutachkov, P. and Bruce, A. M. and Gorska, M. and Grebosz, J. and Pietri, S. and Podolyak, Zs. and Pfuetzner, M. and Regan, P. H. and Weick, H. and Alcantara Nunez, J. and Algora, A. and Al-Dahan, N. and de Angelis, G. and Ayyad, Y. and Alkhomashi, N. and Allegro, P. R. P. and Bazzacco, D. and Benlliure, J. and Bowry, M. and Bunce, M. and Casarejos, E. and Cortes, M. L. and Bacelar, A. M. Denis and Deo, A. Y. and Domingo-Pardo, C. and Doncel, M. and Dombradi, Zs. and Engert, T. and Eppinger, K. and Farrelly, G. F. and Farinon, F. and Farnea, E. and Geissel, H. and Gerl, J. and Goel, N. and Gregor, E. and Habermann, T. and Hoischen, Robert and Janik, R. and Klupp, S. and Kojouharov, I. and Kurz, N. and Mandal, S. and Menegazzo, R. and Mengoni, D. and Napoli, D. R. and Naqvi, F. and Nociforo, C. and Prochazka, A. and Prokopowicz, W. and Recchia, F. and Ribas, R. V. and Reed, M. W. and Rudolph, Dirk and Sahin, E. and Schaffner, H. and Sharma, A. and Sitar, B. and Siwal, D. and Steiger, K. and Strmen, P. and Swan, T. P. D. and Szarka, I. and Ur, C. A. and Walker, P. M. and Wollersheim, H. -J.},
  issn         = {0370-2693},
  language     = {eng},
  number       = {4-5},
  pages        = {293--297},
  publisher    = {Elsevier},
  series       = {Physics Letters. Section B: Nuclear, Elementary Particle and High-Energy Physics},
  title        = {First Measurement of Beta Decay Half-lives in Neutron-rich Tl and Bi Isotopes},
  url          = {http://dx.doi.org/10.1016/j.physletb.2012.07.063},
  volume       = {715},
  year         = {2012},
}