24-30 July 2016
Highfield Campus, University of Southampton
Europe/London timezone

long distance part of $\epsilon_K$ from lattice QCD

28 Jul 2016, 17:30
20m
Building 67 Room 1003 (Highfield Campus, University of Southampton)

Building 67 Room 1003

Highfield Campus, University of Southampton

Highfield Campus, Southampton SO17 1BJ, UK
Talk Weak Decays and Matrix Elements Weak Decays and Matrix Elements

Speaker

Mr Ziyuan Bai (Columbia)

Description

We demonstrate the lattice QCD calculation of the long distance contribution to $\epsilon_K$. Due to the singular, short-distance structure of $epsilon_K$, we must perform a short-distance subtraction and introduce a corresponding subtraction term determined from perturbation theory, which we calculate at Next Leading Order (NLO). We perform the calculation on a $24^3 \times 64$ lattice with a pion mass of 329 MeV. This work is a complete calculation, which includes all connected and disconnected diagrams.

Primary author

Mr Ziyuan Bai (Columbia)

Presentation Materials