Detailed spectroscopy of doubly magic <SUP>132</SUP>Sn

Benito, J, Fraile, LM, Korgul, A, Piersa, M, Adamska, E, Andreyev, AN, Alvarez-Rodriguez, R, Barzakh, AE, Benzoni, G, Berry, T
et al (show 78 more authors) (2020) Detailed spectroscopy of doubly magic <SUP>132</SUP>Sn. PHYSICAL REVIEW C, 102 (1). 014328-.

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The structure of the doubly magic Sn8250132 has been investigated at the ISOLDE facility at CERN, populated both by the β-decay of In132 and β - delayed neutron emission of In133. The level scheme of Sn132 is greatly expanded with the addition of 68 γ transitions and 17 levels observed for the first time in the β decay. The information on the excited structure is completed by new γ transitions and states populated in the β-n decay of In133. Improved delayed neutron emission probabilities are obtained both for In132 and In133. Level lifetimes are measured via the advanced time-delayed βγγ(t) fast-timing method. An interpretation of the level structure is given based on the experimental findings and the particle-hole configurations arising from core excitations both from the N = 82 and Z = 50 shells, leading to positive- and negative-parity particle-hole multiplets. The experimental information provides new data to challenge the theoretical description of Sn132.

Item Type: Article
Depositing User: Symplectic Admin
Date Deposited: 24 Aug 2020 07:34
Last Modified: 15 Mar 2024 04:00
DOI: 10.1103/PhysRevC.102.014328
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