Shell model method for Gamow-Teller Transitions in heavy, deformed nuclei

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dc.creatorGao, Zao-Chun
dc.creatorSun, Yang
dc.creatorChen, Y. -S.
dc.date2006-09-26
dc.date.accessioned2026-07-07T12:00:13Z
dc.date.available2026-07-07T12:00:13Z
dc.descriptionA method for calculation of Gamow-Teller transition rates is developed by using the concept of the Projected Shell Model (PSM). The shell model basis is constructed by superimposing angular-momentum-projected multi-quasiparticle configurations, and nuclear wave functions are obtained by digonalizing the two-body interactions in these projected states. Calculation of transition matrix elements in the PSM framework is discussed in detail, and the effects caused by the Gamow-Teller residual forces and by configuration-mixing are studied. With this method, it may become possible to perform a state-by-state calculation for beta-decay and electron-capture rates in heavy, deformed nuclei at finite temperatures. Our first example indicates that, while experimentally known Gamow-Teller transition rates from the ground state of the parent nucleus are reproduced, stronger transitions from some low-lying excited states are predicted to occur, which may considerably enhance the total decay rates once these nuclei are exposed to hot stellar environments.
dc.description11 pages, 8 figures
dc.identifierhttps://arxiv.org/abs/nucl-th/0609074
dc.identifierhttp://arxiv.org/abs/nucl-th/0609074
dc.identifierPhys.Rev.C74:054303,2006
dc.identifierdoi:10.1103/PhysRevC.74.054303
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/206797
dc.subjectNuclear Theory
dc.subjectAstrophysics
dc.subjectNuclear Experiment
dc.titleShell model method for Gamow-Teller Transitions in heavy, deformed nuclei
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