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Analysis of decay data from neutron-rich nuclei

AuthorsBergmann, U. C.; García Borge, María José ; Cederkäll, J.; Forssén, C.; Fumero, E.; Fynbo, H. O. U.; Gausemel, H.; Jeppesen, Henrik B.; Jonson, B.; Markenroth, K.; Nilsson, T.; Nyman, G.; Riisager, K.; Simon, H.; Tengblad, Olof ; Weissman, L.; Wenander, F.; Wilhelmsen Rolander, K.
Keywords[PACS] Beta decay; double beta decay; electron and muon capture
[PACS] Properties of specific nuclei listed by mass ranges: 6 ≤ A ≤ 19
[PACS] Properties of specific nuclei listed by mass ranges: 20 ≤ A ≤ 38
[PACS] Data analysis: algorithms and implementation; data management
Issue Date1-Jul-2001
PublisherSocietà Italiana di Fisica
CitationThe European Physical Journal A: Hadrons and Nuclei 11(3): 279–284 (2001)
AbstractThe β-decays of the neutron-rich nuclei Be-12 and Ne-29 have been studied. The statistical correlations between the almost identical half-lives of Be-12 and its daughter B-12 are analysed for a large sample of Be-12 decay data. Stringent mutual bounds are obtained on the parameter set, leading to a precise determination of the Be-12 half-life of 21.50 ± 0.04 ms. From a simultaneous detection of β-particles and neutrons from the decay of Ne-29 the neutron emission probability, P-n, is determined to 17 ± 5%. No indication of two-neutron emission is seen from this nucleus. An upper limit of 2.2% (90% confidence level) is established for P-2n.
Description6 pages, 3 figures, 2 tables.-- PACS nrs.: 23.40.-s; 27.20.+n; 27.30.+t; 07.05.Kf.
Publisher version (URL)http://dx.doi.org/10.1007/s100500170066
Appears in Collections:(CFMAC-IEM) Artículos
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