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

Non perturbative renormalization of flavor singlet quark bilinear operators in lattice QCD

27 Jul 2016, 09:20
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 Stefano Piemonte (University of Regensburg)

Description

We report on our studies of the renormalization of flavor singlet quark bilinear operators in lattice QCD. The renormalization constants are determined non-perturbatively using gauge field ensembles with Nf=2 dynamical clover improved fermions. The renormalization is performed in the RI-MOM and RI-SMOM schemes. The difference between flavor singlet and non-singlet quark bilinear operators is a disconnected contribution, which has to be evaluated by stochastic estimators. We compare our results with perturbation theory.

Primary author

Dr Stefano Piemonte (University of Regensburg)

Presentation Materials

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