Regular Article –Theoretical Physics
Bayesian analysis of capture reactions and
Department of Physics and Astronomy, and HPC2 Center for Computational Sciences, Mississippi State University, Mississippi State, MS, 39762, USA
* e-mail: firstname.lastname@example.org
Accepted: 12 February 2020
Published online: 12 June 2020
Bayesian analysis of the radiative capture reactions and are performed to draw inferences about the cross sections at threshold. We do a model comparison of two competing effective field theory power countings for the capture reactions. The two power countings differ in the contribution of two-body electromagnetic currents. In one power counting, two-body currents contribute at leading order, and in the other they contribute at higher orders. The former is favored for if elastic scattering data in the incoming channel is considered in the analysis. Without constraints from elastic scattering data, both the power countings are equally favored. For , the first power counting with two-body current contributions at leading order is favored with or without constraints from elastic scattering data.
© Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature, 2020