Low-energy Electro-weak Reactions

TL;DR

This paper employs chiral effective field theory to analyze low-energy weak reactions in nuclei, emphasizing the importance of two-body weak currents for accurate predictions of observables.

Contribution

It introduces a systematic approach to include two-body weak currents in chiral EFT calculations of low-energy nuclear reactions.

Findings

Two-body weak currents significantly impact Gamow-Teller transition rates.

Chiral EFT provides a controlled framework for low-energy weak reaction calculations.

Predictions align well with experimental data for selected observables.

Abstract

Chiral effective field theory (EFT) provides a systematic and controlled approach to low-energy nuclear physics. Here, we use chiral EFT to calculate low-energy weak Gamow-Teller transitions. We put special emphasis on the role of two-body (2b) weak currents within the nucleus, and discuss their applications in predicting physical observables.