Matrix Elements of Twist-2 Operators in Quenched Chiral Perturbation Theory
arXiv:nucl-th/0108042 · doi:10.1016/S0375-9474(02)00994-6
Abstract
We compute the leading non-analytic 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 m_q log m_q, in analogy with QCD, but there are also contributions of the form log m_q from hairpin interactions. The nucleon does not receive such hairpin contributions.
16 pages, 5 eps figs., latex
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Cited by in corpus (19)
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