V_ud radiative corrections with lattice input

2021/04/06 by Chien-Yeah Seng, Seng, Chien-Yeah
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High Energy Physics - Lattice (hep-lat) #High Energy Physics - Phenomenology (hep-ph) #Neutrino Physics Research #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions

paper · pdf · doi:10.48550/arxiv.2104.02586

openalex publication_date 2021/04/06 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

We will describe several pioneering efforts in the study of electromagnetic radiative corrections to semileptonic decay processes, with particular emphasis on the role of lattice QCD. These studies are essential for the precise extraction of the matrix element V_ud from beta decays of pion, free neutron and J^P=0⁺ nuclei, and are crucial to address several recently-emerged anomalies involving V_ud and V_us, which may provide hints for physics beyond the Standard Model.

Related

• High-precision determination of radiative corrections to superallowed nuclear beta decays
• New calculations of neutron and kaon decays
• Radiative corrections to decay amplitudes in lattice QCD
• |V_cb| using lattice QCD
• Determination of V_us: recent progresses from theory