Bhattacharyya P, Daly PJ, Zhang CT, Grabowski ZW, Saha SK, Broda R, Fornal B, Ahmad I, Seweryniak D, Wiedenhöver I, Carpenter MP, Janssens RV, Khoo TL, Lauritsen T, Lister CJ, Reiter P, Blomqvist J. Magic nucleus 132Sn and its one-neutron-hole neighbor 131Sn.
PHYSICAL REVIEW LETTERS 2001;
87:062502. [PMID:
11497825 DOI:
10.1103/physrevlett.87.062502]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2001] [Indexed: 05/23/2023]
Abstract
Prompt and delayed gamma-ray cascades in doubly magic 132Sn and its neighbor 131Sn have been studied at Gammasphere using a 248Cm fission source. Isotopic assignments of unknown gamma rays were based on coincidences with known transitions in A = 112-116 Pd fission partners. The yrast level spectra of both tin nuclei are interpreted using empirical nucleon-nucleon interactions from the 132Sn and 208Pb regions. Results include identification of the (nuf(7/2)h(-1)(11/2))9(+) aligned state in 132Sn and of extensive (nuf(7/2)h(-2)(11/2)), (nuf(7/2)d(-1)(3/2)h(-1)(11/2)) and (nuh(-1)(11/2)x3(-)) multiplets in 131Sn. The previously reported beta(-) decay of an unusual 131In high-spin isomer to levels in 131Sn is also elucidated.
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