1 research outputs found
Contribution of Quark-Mass-Dependent Operators to Higher Twist Effects in DIS
We look at the contribution of Quark-Mass-dependent twist-4 operators to the
second moments of spin averaged structure functions and the Bjorken sum rule.
Its contribution is non-negligible in the former case due to large Wilson
coefficients. We also discuss the values of the twist- 4 spin-2 nucleon matrix
element within present experimental constraints.Comment: 14pages, RevTex, (To be published in Phys. Rev. D) University of
Washington preprint DOE/ER/40427-22-N9