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Matrix Elements of Twist-2 Operators in Quenched Chiral Perturbation Theory

Jiunn-Wei Chen·Martin J. Savage
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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.

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BibTeXRIS

Jiunn-Wei Chen, Martin J. Savage. 2002-06-17. Matrix Elements of Twist-2 Operators in Quenched Chiral Perturbation Theory. https://doi.org/10.1016/s0375-9474(02)00994-6

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