Work

Dispersive formalism for the nuclear structure correction δNS to the β decay rate

Year: 2023

Type: article

Abstract: Searches for new physics are often performed along the precision frontier, requiring more careful treatment of corrections previously treated approximately. For example, interpretation of high-precision measurements of $\ensuremath{\beta}$ decay require the radiative correction arising from nuclear structure that was previously estimated using oversimplified nuclear models. In this paper, the authors carefully work out the formalism needed to use input from microscopic nuclear calculations, including a multipole expansion of the relevant matrix elements. This work prepares a path to a more rigorous theory framework and more precise limits on physics beyond the Standard Model.

Source: Physical Review C

DOI: 10.1103/physrevc.107.035503

Authors: Chien-Yeah Seng, Mikhail Gorchtein

Institutions: University of Bonn, University of Washington, Facility for Rare Isotope Beams, Michigan State University, Johannes Gutenberg University Mainz

Language: Latvian

Topic: Nuclear physics research studies

Subfield: Nuclear and High Energy Physics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green