Unfolding the effects of the T=0 and T=1 parts of the two-body interaction on nuclear collectivity in the f-p shell

Journal Article · Thu Sep 01 04:00:00 EDT 2005 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.72.034314· OSTI ID:20698983

Robinson, Shadow J.Q. ^[1]; Escuderos, Alberto; Zamick, Larry ^[2]

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1. Department of Physics, University of Southern Indiana, Evansville, Indiana 47712 (United States)
2. Department of Physics and Astronomy, Rutgers University, Piscataway, New Jersey 08855 (United States)

Calculations of the spectra of various even-even nuclei in the fp shell ({sup 44}Ti, {sup 46}Ti, {sup 48}Ti, {sup 48}Cr, and {sup 50}Cr) are performed with two sets of two-body interaction matrix elements. The first set consists of the matrix elements of the FPD6 interaction. The second set has the same T=1 two-body matrix elements as the FPD6 interaction, but all the T=0 two-body matrix elements are set equal to zero (T0FPD6). Surprisingly, the T0FPD6 interaction gives a semireasonable spectrum when compared to FPD6 (or else this method would make no sense). A consistent feature for even-even nuclei, e.g., {sup 44,46,48}Ti and {sup 48,50}Cr, is that the reintroduction of T=0 matrix elements makes the spectrum look more rotational than when the T=0 matrix elements are set equal to zero. The odd-odd nucleus {sup 46}V is also discussed. In general, but not always, the inclusion of T=0 two-body matrix elements enhances the B(E2) rates.

• OSTI ID: 20698983
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 3 Vol. 72; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
CHROMIUM 48
CHROMIUM 50
MATRIX ELEMENTS
NUCLEON-NUCLEON INTERACTIONS
TITANIUM 44
TITANIUM 46
TITANIUM 48
TWO-BODY PROBLEM
VANADIUM 46