Effective field theory with resonant P-wave interaction
Nuclear Theory
2023-09-04 v2
Abstract
A new effective field theory has been developed to describe shallow -wave resonances using nonlocal, momentum-dependent two-body potentials. This approach is expected to facilitate many-body calculations and has been demonstrated to converge and to be renormalizable in perturbative calculations at subleading orders. The theory has been applied to the neutron-alpha system, with good agreement found between its predictions and a phase-shift analysis of neutron-alpha elastic scattering. In the three-body system consisting of two neutrons and an alpha particle, the nonlocal potential in this framework has been found to recover the same qualitative features as previously shown with energy-dependent formulations.
Cite
@article{arxiv.2303.17292,
title = {Effective field theory with resonant P-wave interaction},
author = {Qingfeng Li and Songlin Lyu and Chen Ji and Bingwei Long},
journal= {arXiv preprint arXiv:2303.17292},
year = {2023}
}
Comments
18 pages, 4 figures