Analysis of decay data from neutron-rich nuclei

Summary, in English

The beta -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 beta -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.

• Author: UC Bergmann; MJG Borge; Joakim Cederkäll; C Forssen; E Fumoro; HOU Fynbo; H Gausemel; H Jeppesen; B Jonson; K Markenroth; T Nilsson; G Nyman; K Riisager; H Simon; O Tengblad; L Weissman; F Wenander; KW Rolander
• Publishing year: 2001
• Language: English
• Pages: 279-284
• Publication/Series: European Physical Journal A. Hadrons and Nuclei
• Volume: 11
• Issue: 3
• Links: http://dx.doi.org/10.1007/s100500170066
• Document type: Journal article
• Publisher: Springer
• Topic: Subatomic Physics
• Status: Published
• ISBN/ISSN/Other: ISSN: 1434-6001