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

Non-Perturbative Renormalization of Nucleon Charges with Automated Perturbative Subtraction

27 Jul 2016, 09:40
20m
Building 67 Room 1027 (Highfield Campus, Universit of Southampton)

Building 67 Room 1027

Highfield Campus, Universit of Southampton

Talk Standard Model Parameters and Renormalization Standard Model Parameters and Renormalization

Speaker

Dr Georg von Hippel (University of Mainz)

Description

We report on the determination of the renormalization factors of quark bilinears which are required among others in order to determine the nucleon scalar and tensor charges from the CLS $N_f=2$ configurations. Working in the RI'-MOM scheme, we eliminate all lattice artifacts at one-loop order using a combination of analytical results near the continuum limit and numerical calculations in automated lattice perturbation theory. The latter will allow for a ready generalization to the renormalization factors required for the average momentum fraction and other operators beyond local bilinears.

Primary author

Dr Georg von Hippel (University of Mainz)

Co-authors

Prof. Hartmut Wittig (University of Mainz) Mr Linus Wrang (University of Mainz & University of Uppsala) Dr Maxwell Hansen (University of Mainz) Dr Parikshit Junnarkar (Helmholtz-Institute Mainz, University of Mainz) Dr Tim Harris (Helmholtz-Institute Mainz, University of Mainz)

Presentation Materials