Quantum Monte Carlo calculations of electroweak transition matrix elements in A = 6,7 nuclei
Nuclear Theory
2008-11-26 v2
Abstract
Green's function Monte Carlo calculations of magnetic dipole, electric quadrupole, Fermi, and Gamow-Teller transition matrix elements are reported for A=6,7 nuclei. The matrix elements are extrapolated from mixed estimates that bracket the relevant electroweak operator between variational Monte Carlo and GFMC propagated wave functions. Because they are off-diagonal terms, two mixed estimates are required for each transition, with a VMC initial (final) state paired with a GFMC final (initial) state. The realistic Argonne v18 two-nucleon and Illinois-2 three-nucleon interactions are used to generate the nuclear states. In most cases we find good agreement with experimental data.
Cite
@article{arxiv.0710.1265,
title = {Quantum Monte Carlo calculations of electroweak transition matrix elements in A = 6,7 nuclei},
author = {Muslema Pervin and Steven C. Pieper and R. B. Wiringa},
journal= {arXiv preprint arXiv:0710.1265},
year = {2008}
}
Comments
v2: minor corrections to text and figures