RT Journal Article
T1 Lattice measurement of  s with a realistic charm quark
A1 de Soto, Feliciano
A1 Blossier, B.
A1 Boucaud, P.
A1 Brinet, M.
A1 Du, X.
A1 Morenas, V.
A1 Pène, O.
A1 Petrov, K.
A1 Rodríguez-Quintero, J.
K1 Lattice
AB We report on an estimate of  s, renormalised in the MS scheme at the   and Z0 mass scales, by means of latticeQCD. Our major improvement compared to previous lattice calculations is that, for the first time, no perturbativetreatment at the charm threshold has been required since we have used statistical samples of gluon fields built byincorporating the vacuum polarisation effects of u/d, s and c sea quarks. Extracting  s in the Taylor scheme from thelattice measurement of the ghost-ghost-gluon vertex, we obtain  MSs (m2Z) = 0.1200(14) and  MSs (m2  ) = 0.339(13).
PB Elsevier
SN 0920-5632
YR 2013
FD 2013-01
LK http://hdl.handle.net/10433/1022
UL http://hdl.handle.net/10433/1022
LA en
NO Nuclear Physics B - Proceedings Supplements, 234, pp. 217-220
NO Universidad Pablo de Olavide. Departamento de Sistemas Físicos, Químicos y Naturales
DS RIO
RD May 6, 2026