pith. sign in

arxiv: 1406.4696 · v1 · pith:YMRDLXBMnew · submitted 2014-06-18 · ⚛️ nucl-th · nucl-ex

Effects of three-nucleon forces and two-body currents on Gamow-Teller strengths

classification ⚛️ nucl-th nucl-ex
keywords two-bodycurrentsthree-nucleoncarbon-14computegamow-telleraxial-vectorchiral
0
0 comments X
read the original abstract

We optimize chiral interactions at next-to-next-to leading order to observables in two- and three-nucleon systems, and compute Gamow-Teller transitions in carbon-14, oxygen-22 and oxygen-24 using consistent two-body currents. We compute spectra of the daughter nuclei nitrogen-14, fluorine-22 and fluorine-24 via an isospin-breaking coupled-cluster technique, with several predictions. The two-body currents reduce the Ikeda sum rule, corresponding to a quenching factor q^2 ~ 0.84-0.92 of the axial-vector coupling. The half life of carbon-14 depends on the energy of the first excited 1+ state, the three-nucleon force, and the two-body current.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.