Lattice2010

Non-perturbative running of the coupling from four-flavour lattice QCD with staggered quarks

15 Jun 2010, 17:20

20m

Room4 (Villasimius, Sardinia)

Standard model parameters and renormalization Parallel 32: Standard model parameters and renormalization

Speaker

Paula Perez Rubio (Universidad Autonoma de Madrid and Trinity College Dublin)

Description

Using the Schroedinger functional (SF) with a single staggered fermion field we calculate the SF coupling in four-flavour QCD for a wide range of energies and lattice sizes up to $L/a=16$. Preliminary results for the continuum extrapolation of the step-scaling function are presented. To reduce cutoff effects, one-loop $\mathrm{O}(a)$ improvement has been implemented. Various cross checks are made possible by the use of two independent sets of lattices with either $T=L+a$ or $T=L-a$.

Presentation materials

Slides

perez_rubio_lat_talk.pdf