Document Type

Article

Publication Date

2018

DOI

10.1103/PhysRevC.97.022501

Publication Title

Physical Review C

Volume

97

Issue

022501

Pages

1-5

Abstract

Ab initio calculations of the Gamow-Teller (GT) matrix elements in the β decays of 6He and 10C and electron captures in 7Be are carried out using both variational and Green's function Monte Carlo wave functions obtained from the Argonne v18 two-nucleon and Illinois-7 three-nucleon interactions, and axial many-body currents derived from either meson-exchange phenomenology or chiral effective field theory. The agreement with experimental data is excellent for the electron captures in 7Be, while theory overestimates the 6He and 10C data by ~2% and ~10%, respectively. We show that for these systems correlations in the nuclear wave functions are crucial to explaining the data, while many-body currents increase by ~2-3% the one-body GT contributions.

Comments

Open access under a Creative Commons Attribution License.

Original Publication Citation

Pastore, S., Baroni, A., Carlson, J., Gandolfi, S., Pieper, S. C., Schiavilla, R., & Wiringa, R. B. (2018). Quantum Monte Carlo calculations of weak transitions in A=6-10 nuclei. Physical Review C, 97(022501), 1-5. doi:10.1103/PhysRevC.97.022501

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