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Quantum Monte Carlo calculations of magnetic moments and M1 transitions in A {le} 7 nuclei including meson-exchange currents.

Journal Article · · Phys. Rev. C
Green's function Monte Carlo calculations of magnetic moments and M1 transitions including two-body meson-exchange current (MEC) contributions are reported for A 7 nuclei. The realistic Argonne v{sub 18} two-nucleon and Illinois-2 three-nucleon potentials are used to generate the nuclear wave functions. The two-body meson-exchange operators are constructed to satisfy the continuity equation with the Argonne v{sub 18} potential. The MEC contributions increase the A = 3,7 isovector magnetic moments by 16% and the A = 6,7 M1 transition rates by 17-34%, bringing them into very good agreement with the experimental data.
Research Organization:
Argonne National Laboratory (ANL)
Sponsoring Organization:
SC
DOE Contract Number:
AC02-06CH11357
OSTI ID:
990169
Report Number(s):
ANL/PHY/JA-62646
Journal Information:
Phys. Rev. C, Journal Name: Phys. Rev. C Journal Issue: 2008 Vol. 78; ISSN 0556-2813
Country of Publication:
United States
Language:
ENGLISH