Shell-model Monte Carlo studies of {ital fp}-shell nuclei

Journal Article · Tue Aug 01 04:00:00 EDT 1995 · Physical Review, C

DOI:https://doi.org/10.1103/PhysRevC.52.718· OSTI ID:90547

Langanke, K; Dean, D J; Radha, P B; Alhassid, Y; Koonin, S E ^[1]

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1. W. K. Kellogg Radiation Laboratory, 106-38, California Institute of Technology, Pasadena, California 91125 (United States)

We study the gross properties of even-even and {ital N}={ital Z} nuclei with {ital A}=48--64 using shell-model Monte Carlo methods. Our calculations account for all 0{h_bar}{omega} configurations in the {ital fp} shell and employ the modified Kuo-Brown interaction {ital KB}3. We find good agreement with data for masses and total {ital B}({ital E}2) strengths, the latter employing effective charges {ital e}{sub {ital p}}=1.35{ital e} and {ital e}{sub {ital n}}=0.35{ital e}. The calculated total Gamow-Teller strengths agree consistently with the {ital B}({ital GT}{sub +}) values deduced from ({ital n},{ital p}) data if the shell-model results are renormalized by 0.64, as has already been established for {ital sd}-shell nuclei. The present calculations therefore suggest that this renormalization (i.e., {ital g}{sub {ital A}}=1 in the nuclear medium) is universal.

• Research Organization: Yale University
• DOE Contract Number: FG02-91ER40608
• OSTI ID: 90547
• Journal Information: Physical Review, C, Journal Name: Physical Review, C Journal Issue: 2 Vol. 52; ISSN PRVCAN; ISSN 0556-2813
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
BRANCHING RATIO
EVEN-EVEN NUCLEI
GAMOW-TELLER RULES
MASS
MONTE CARLO METHOD
RENORMALIZATION
SHELL MODELS