Probing non-standard charged-current interactions: from cold neutrons to the LHC

TL;DR

This paper reviews how semileptonic decays of light hadrons and nuclei, analyzed through Effective Field Theory, serve as complementary probes for detecting physics beyond the Standard Model, from cold neutrons to the LHC.

Contribution

It provides a comparative analysis of low-energy and high-energy observables' sensitivity to non-standard charged-current interactions within an EFT framework.

Findings

Low-energy decays and LHC data offer complementary constraints.

Effective Field Theory effectively unifies low- and high-energy probes.

Semileptonic decay measurements can reveal new physics beyond the Standard Model.

Abstract

It is well known that semileptonic decays of light hadrons and nuclei can be used not only to determine the CKM element V_ud with high accuracy, but also as probes of physics beyond the Standard Model. In this talk I review recent works that studied this within an Effective Field Theory framework, comparing the sensitivity of different low-energy and LHC observables. A clear complementarity between low- and high-energy searches it is found.