Nuclear physics or new physics? Input from ab initio nuclear models for BSM physics searches

Grigor Sargsyan, FRIB

Wed, Apr 1, 2026, 13:00

Theory Room/Zoom

Abstract

In the quest to understand the fundamental forces of nature, high-precision nuclear beta decay measurements offer a unique window into potential new physics beyond the Standard Model (BSM). Given the precision that current measurements achieve, it is essential to consider many higher-order corrections using nuclear theory. In this talk, I will discuss how precise calculations of these higher-order corrections, using modern ab initio approaches, help distinguish between new physics and conventional nuclear effects. I will review some of the key results from the recent measurements of BSM tensor currents in the weak interaction and present the impact of theoretical calculations on reducing some of the leading uncertainties in these experiments.

Remote Connection: https://ubc.zoom.us/j/62535266430?pwd=THVrUzhMdjAyVkNnM05OUWRZYUppZz09

Meeting ID: 625 3526 6430 Passcode: 307647