RT Journal Article
T1 Testing the operator product expansion Wilson coefficient for A2 from lattice QCD with a dynamical charm
A1 de Soto, Feliciano
A1 Blossier, B.
A1 Boucaud, P.
A1 Brinet, M.
A1 Morenas, V.
A1 Pène, O.
A1 Petrov, K.
A1 Rodríguez-Quintero, J.
K1 Lattice
K1 Gluon propagators
K1 Ghost propagators
AB Gluon and ghost propagators, obtained in Landau gauge from lattice simulations with two light two heavy dynamical quark flavors (Nf=2+1+1), are described here with a running formula including a four-loop perturbative expression and a nonperturbative operator product expansion correction dominated by the local operator A2. The Wilson coefficients and their variation as a function of the coupling constant are extracted from the numerical data and compared with the theoretical expressions that, after being properly renormalized, are known at O(¿4). As ¿MS¯¯¯¯¯¯ is also rather well known for Nf=2+1+1, this allows for a precise consistency test of the operator product expansion approach in the joint description of different observables.
PB American Physical Society
SN 1550-7998
YR 2013
FD 2013-04
LK http://hdl.handle.net/10433/999
UL http://hdl.handle.net/10433/999
LA en
NO Physical Review D - Particles, Fields, Gravitation and Cosmology, 87 (7), art. no. 074033
NO Universidad Pablo de Olavide. Departamento de Sistemas Físicos, Químicos y Naturales
DS RIO
RD May 7, 2026