Phys. Rev. D 62, 094016 (2000) [7 pages]One-loop factorization of the nucleon g2-structure function in the nonsinglet caseReceived 6 July 2000; published 3 October 2000 We consider the one-loop factorization of the simplest twist-3 process: inclusive deep-inelastic scattering of longitudinally polarized leptons on a transversely polarized nucleon target. By studying the Compton amplitudes for certain quark and gluon states at one loop, we find the coefficient functions for the nonsinglet twist-3 distributions in the factorization formula of g2(xB,Q2). The result marks the first step towards a next-to-leading order formalism for this transverse-spin-dependent structure function of the nucleon. © 2000 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevD.62.094016
DOI:
10.1103/PhysRevD.62.094016
PACS:
12.38.Bx, 13.88.+e, 14.20.Dh
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