RT Journal Article
T1 Testing the OPE Wilson coefficient for A2 from lattice QCD with a dynamical charm
A1 Blossier, B.
A1 Boucaud, Ph.
A1 Brinet, M.
A1 Rodríguez Quintero, José
AB Gluon and ghost propagators data, obtained in Landau gauge from lattice simulations with twolight and two heavy dynamical quark flavours (Nf=2+1+1), are described here with a runningformula including a four-loop perturbative expression and a nonperturbative OPE correction dom-inated by the local operator A2. The Wilson coefficients and their variation as a function of thecoupling constant are extracted from the numerical data and compared with the theoretical ex-pressions that, after being properly renormalized, are known at O( 4). As also  ms is rather wellknown for Nf=2+1+1, this allows for a precise consistency test of the OPE approach in the jointdescription of different observables.
PB American Physical Society
SN 2470-0010
YR 2014
FD 2014-05
LK http://hdl.handle.net/10272/18566
UL http://hdl.handle.net/10272/18566
LA eng
NO Blossier, B., Boucaud, P., Brinet, M. ... Rodríguez Quintero, J. (2014). Testing the operator product expansion Wilson coefficient forA2from lattice QCD with a dynamical charm. Physical Review D, 87(7). DOI: https://doi.org/10.1103/physrevd.87.074033
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026