Matrix elements of twist-2 operators in quenched chiral perturbation theory
Journal
Nuclear Physics
Journal Volume
A707
Pages
452-468
Date Issued
2001-08
Author(s)
Savage, Martin J.
Abstract
We compute the leading quark mass dependence of the matrix elements of isovector twist-2 operators between octet baryon states in quenched QCD using quenched chiral perturbation theory. There are contributions of the form mq logmq and mq, in analogy with QCD, but there are also contributions of the form log mq from hairpin interactions. The nucleon does not receive such hairpin contributions. © 2002 Elsevier Science B.V.
Type
journal article