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Title: Quantum Monte Carlo calculations of magnetic moments and M1 transitions in $$A\leq7$$ nuclei including meson-exchange currents

Journal Article · · Physical Review C

Green's function Monte Carlo calculations of magnetic moments and $M1$ transitions including two-body meson-exchange current (MEC) contributions are reported for $$A\leq7$$ nuclei. The realistic Argonne $$v_{18}$$ 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 $$v_{18}$$ potential. The MEC contributions increase the $$A$$=3,7 isovector magnetic moments by 16\% and the $$A$$=6,7 transition rates by 17--34\%, bringing them into very good agreement with the experimental data.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC05-060R23177
OSTI ID:
956063
Report Number(s):
JLAB-THY-08-880; arXiv:0810.0547; DOE/OR/23177-0539; PRVCAN; TRN: US1004860
Journal Information:
Physical Review C, Vol. 78; ISSN 0556-2813
Country of Publication:
United States
Language:
English

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