出版社：SISSA, Scuola Internazionale Superiore di Studi Avanzati
摘要：We perform a quenched computation of the glue momentum fraction in the pion. Different discretizations
of the gluonic energy-momentum tensor are studied on the lattice for that purpose.
We discuss some implications based on the momentum sum rule. Finally we point out promising
applications of the techniques developed here.
