Lattice QCD calculations of two-nucleon neutrinoless double-beta decay matrix elements

by Zi-Yu Wang (Center for High Energy Physics, Peking University)

Saturday 14 Jun 2025, 09:30 → 10:30 Asia/Shanghai

Tsung-Dao Lee Institute/N4F-N400 - meeting room (Tsung-Dao Lee Institute)

Abstract： Neutrinoless double-beta decay (0νββ) is a hypothetical decay process in certain isotopes that, if observed, would provide direct evidence for the Majorana nature of neutrinos. Interpreting experimental 0νββ half-life measurements requires knowledge of nuclear matrix elements; however, their large systematic uncertainties pose a significant challenge. A promising approach to address this challenge uses nuclear effective field theory (EFT) to express these matrix elements in terms of low-energy constants (LECs), which are possible to constrain through ab initio lattice QCD calculations. This talk presents our recent advances in lattice QCD calculations of two-nucleon matrix elements relevant to 0νββ decay.

 

Biography：Zi-Yu Wang is a Postdoctoral Researcher at the Center for High Energy Physics, Peking University. His research focuses on computing two-nucleon weak decay matrix elements using Lattice Quantum Chromodynamics (Lattice QCD).

 

Tencent Meeting ID: 389198843

Password: 630979