Title

Neutron-hole strength in the N = 81 isotones

Document Type

Conference Proceeding

Publication Date

1-1-2012

Abstract

The distribution of neutron-hole strength has been studied in the N 81 isotones 137Ba, 139Ce, 141Nd and 143Sm through the single-neutron removing reactions (p,d) and ( 3He,α), at energies of 23 and 34 MeV, respectively. Systematic cross section measurements were made at angles sensitive to the transferred angular momentum, and spectroscopic factors extracted through a distorted-wave Born approximation analysis. Application of the MacFarlane-French sum rules indicate an anomalously low summed g7/2 spectroscopic factor, most likely due to extensive fragmentation of the single-particle strength. Single-particle energies, based upon the centroids of observed strength, are presented. © Published under licence by IOP Publishing Ltd.

Publication Source (Journal or Book title)

Journal of Physics: Conference Series

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