Gamow-Teller strength distributions in fp-shell nuclei

Journal Article · Mon Dec 01 04:00:00 EST 1997 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.56.3079· OSTI ID:679094

Radha, P B; Vogel, P ^[1]

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1. Institut for Physics and Astronomy, University of Aarhus, DK-8000 Aarhus C (Denmark)

We use the shell model Monte Carlo method to calculate complete 0f1p-shell response functions for Gamow-Teller (GT) operators and obtain the corresponding strength distributions using a maximum entropy technique. The approach is validated against direct diagonalization for {sup 48}Ti. Calculated GT strength distributions agree well with data from (n,p) and (p,n) reactions for nuclei with A=48{endash}64. We also calculate the temperature evolution of the GT{sub +} distributions for representative nuclei and find that the GT{sub +} distributions broaden and the centroids shift to lower energies with increasing temperature. {copyright} {ital 1997} {ital The American Physical Society}

• Research Organization: Oak Ridge National Laboratory
• DOE Contract Number: AC05-96OR22464
• OSTI ID: 679094
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 6 Vol. 56; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
ENTROPY
GAMOW-TELLER RULES
MONTE CARLO METHOD
NEUTRON REACTIONS
PROTON REACTIONS
RESPONSE FUNCTIONS
SHELL MODELS
STRENGTH FUNCTIONS
TITANIUM 48