Theoretical Physics Colloquium

Calculating the neutron-proton mass difference

by Prof. Szabo Kalman (Forschungszentrum Juelich)

Monday, February 16, 2015 from to (Asia/Kolkata)
at AG66
Description
First three mass generating mechanisms of the Standard Model are
discussed at an introductory level. The simplest system where all
three play a role is the proton. Then current high precision lattice
QCD calculations are presented. They can reproduce not only the
experimentally measured proton mass, but even the tiny neutron-proton
mass difference. Some of the difficulties in obtaining the latter are
presented in more detail.