Lattice2010

Session

Parallel 20: Standard model parameters and renormalization

15 Jun 2010, 10:30

Villasimius, Sardinia

282. scaling study of the non-perturbative renormalized quenched quark mass

Thorsten Kurth (Bergische Universität Wuppertal)

15/06/2010, 10:30

Standard model parameters and renormalization

I will present a scaling study of quenched quark masses obtained with a HEX-smeared improved Clover action. Renormalization is done in the RI-MOM scheme. I'm going to discuss specifics of the renormalization procedure and the continuum limit.

320. Light, strange and charm quark masses from Lattice QCD

Francesco Sanfilippo (Dipartimento di Fisica, universita' "La Sapienza" di Roma)

15/06/2010, 10:50

Standard model parameters and renormalization

The ETM collaboration has recently performed a determination of light, strange and charm quark masses. The calculation has been performed using the twisted mass fermionic action at maximal twist, which is automatically O(a) improved, with two degenerate sea quarks. Four different lattice spacing and various volumes and quark masses have been analyzed. In the talk I will review the values...

305. Charm current-current correlators in Twisted Mass lattice QCD

Marcus Petschlies (Humboldt-Universitaet zu Berlin)

15/06/2010, 11:10

Standard model parameters and renormalization

The strong coupling constant and the charm quark mass are two fundamental parameters of the Standard Model. The precision of their determination has been continuously improved in the past using both perturbative and non-perturbative methods and most recently combinations thereof. I report on a partially quenched investigation of charm current-current correlators using two flavours of...

334. Direct lattice calculation of m_d - m_u

Andre' Walker-Loud (Department of Physics, College of William and Mary)

15/06/2010, 11:30

Standard model parameters and renormalization

In this work, we report on the first direct lattice calculation of the strong isospin breaking parameter, m_d - m_u. To determine this standard model parameter, we compute the hadron spectrum for several values the lattice volume, the pion mass and the strong isospin breaking parameter, and then extrapolate these results to the known experimental spectrum. We must address various...