Higher-twist quark-mass contributions to deep-inelastic scattering

Abstract

In this letter we extend the factorization procedure of the deep-inelastic hadron tensor, proposed by Qiu, to include non-zero quark masses. The manifest gauge invariance of both soft and hard parts is preserved. Using a so-called spurion to generate the quark-mass terms, the simple parton-model interpretation is also kept. The calculation of the deep-inelastic transverse-spin structure function $g_2$ is used to illustrate the algorithm.

10 pages, REVTEX, 3 figures included

References in corpus (2)

• Contribution of Quark-Mass-Dependent Operators to Higher Twist Effects in DIS
• Spin-dependent structure functions ${\hat{g}}_1$ and ${\hat{g}}_2$ for inclusive spin-half baryon production in electron-positron annihilation

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