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arXiv · hep-ph/0611382

Single Transverse Spin Asymmetry for Semi-Inclusive Deep Inelastic Scattering

Hisato Eguchi·Yuji Koike·Kazuhiro Tanaka
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Abstract

Establishing the twist-3 formalsim for the single transverse spin asymmetry, we present a complete single-spin-dependent cross section for SIDIS, $ep^\uparrow\to eπX$, associated with the twist-3 distribution for the transversely polarized nucleon. We emphasize that the consistency condition from the Ward identities for color gauge invariance is crucial to prove factorization property of the cross section.

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Hisato Eguchi, Yuji Koike, Kazuhiro Tanaka. 2006-12-08. Single Transverse Spin Asymmetry for Semi-Inclusive Deep Inelastic Scattering. https://doi.org/10.1063/1.2750836

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