Effective field theory approach for the M1 properties of A=2 and 3 nuclei

Details Effective field theory approach for the M1 properties of A=2 and 3 nuclei Effective field theory approach for the M1 properties of A=2 and 3 nuclei

2007-05-18

arxiv.org/abs/0705.2657v2

Phys.Lett.B656:174-181,2007

Physics

Nuclear Physics

Nuclear Theory

14 pages, 2figures

Scientific paper

10.1016/j.physletb.2007.09.038

The magnetic moments of ${}^2{H}$, ${}^3{He}$ and ${}^3{H}$ as well as the thermal neutron capture rate on the proton are calculated using heavy baryon chiral perturbation theory {\it \`{a} la} Weinberg. The M1 operators have been derived up to {N$^3$LO}. The nuclear matrix elements are evaluated with the use of wave functions obtained by carrying out variational Monte Carlo calculations for a realistic nuclear Hamiltonian involving high-precision phenomenological potentials like Argonne Av18 and Urbana IX tri-nucleon interactions. We discuss the potential- and cutoff-dependence of the results.

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