23–28 Jun 2014
Columbia University
US/Eastern timezone

A perturbative study of the chirally rotated Schrödinger functional in QCD

24 Jun 2014, 14:15
20m
207 Math

207 Math

Talk Standard Model Parameters and Renormalization Standard model parameters and renormalization

Speaker

Dr Pol Vilaseca Mainar (Instituto Nazionale di FIsica Nucleare)

Description

The chirally rotated Schrödinger functional renders the mechanism of automatic O(a) improvement compatible with the Schrödinger functional (SF) formulation. We here report on the determination to 1-loop order in perturbation theory of the renormalization coefficients necessary to achieve automatic O(a) improvement and the boundary improvement coefficients needed to eliminate the extra boundary O(a) effects present in any SF formulation. After this is done, we perform a set of tests of automatic O(a) improvement and of the universality between standard and chirally rotated SF formulations. Finally we discuss the determination of the non-singlet current renormalization constants ZA and ZV from ratios of 2-point functions in the chirally rotated setup.

Primary author

Dr Pol Vilaseca Mainar (Instituto Nazionale di FIsica Nucleare)

Co-author

Prof. Stefan Sint (Trinity College Dublin)

Presentation materials