Thursday, April 24, 2025

4:00pm-5:00pm

High precision calculations of the properties of nucleons using lattice QCD

Simulations of lattice Quantum Chromodynamics (QCD) are providing increasingly precise predictions of QCD with growing computing power and novel algorithms that have addressed issues of critical slowing down. This talk will cover the calculations being done by the Los Alamos lattice QCD team to predict the properties of nucleons, in particular their charges, vector and axial vector form factors and distributions of momentum, spin and transversity. It will also describe the contributions from beyond the standard model physics to the neutron electric dipole moment. A major systematic in these calculations is contributions from multiparticle excited states that the LANL team has pioneered methods to identify and remove.