23–28 Jun 2014
Columbia University
US/Eastern timezone

Physical and cut-off effects of heavy charm-like sea quarks

24 Jun 2014, 17:50
20m
207 Math

207 Math

Talk Standard Model Parameters and Renormalization Standard model parameters and renormalization

Speaker

Prof. Francesco Knechtli (University of Wuppertal)

Description

We simulate a theory with two dynamical O(a) improved Wilson quarks whose mass M is close the charm quark mass and at three values of the lattice spacing ranging from 0.066 to 0.038 fm. This theory is a prototype to study the decoupling of heavy quarks. We measure the mass and cut-off dependence of ratios of gluonic observables defined from the Wilson flow or the static potential. The size of the 1/M corrections can be determined and disentangled from the lattice artifacts. The difference with the pure gauge theory is in the percent range when two quarks with a mass of the charm quark are present.

Primary author

Prof. Francesco Knechtli (University of Wuppertal)

Co-authors

Dr Andreas Athenodorou (University of Cyprus) Dr Björn Leder (University of Wuppertal) Mr Jacob Finkenrath (University of Wuppertal) Dr Marina Marinkovic (University of Southampton) Prof. Rainer Sommer (NIC, DESY)

Presentation materials