Shell-model Lanczos-method studies of the Gamow-Teller strength function in astrophysics

Details Shell-model Lanczos-method studies of the Gamow-Teller strength function in astrophysics Shell-model Lanczos-method studies of the Gamow-Teller strength function in astrophysics

Nov 1984

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984stin...8521093m&link_type=abstract

Presented at Intern. Symp. on Nucl. Shell Model, Philadelphia, Pa., 31 Oct. 1984

Physics

Nuclear Physics

Nuclei (Nuclear Physics), Shell Theory, Weak Interactions (Field Theory), Gravitational Collapse, Stellar Evolution, Supernovae

Scientific paper

The Livermore system of vectorized shell model codes is used to study the Gamow-Teller strength functions for a variety of nuclei whose weak interaction properties are of interest in astrophysics. The Lanczos method is used to diagonalize a model space consisting of low seniority excitations (including all states directly populated by the Gamow-Teller operator) with a realistic finite range effective interaction. The effects of model space truncation are systematically investigated for each nucleus. The results of these calculations are discussed in connection with problems in stellar evolution, supernova collapse, and nucleosynthesis.

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