Single Transverse Spin Asymmetry for Large-p_T Pion Production in Semi-Inclusive Deep Inelastic Scattering

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dc.creatorEguchi, Hisato
dc.creatorKoike, Yuji
dc.creatorTanaka, Kazuhiro
dc.date2006-04-02
dc.date2006-05-17
dc.date.accessioned2026-07-07T10:44:57Z
dc.date.available2026-07-07T10:44:57Z
dc.descriptionWe study the single spin asymmetry (SSA) for the pion production with large transverse momentum p_T in semi-inclusive deep inelastic scattering $ep^\uparrow\to eπX$. We derive the twist-3 cross section formula for SSA, focussing on the soft-gluon-pole contributions associated with the twist-3 distribution for the nucleon and with the twist-3 fragmentation function for the pion. We present a simple estimate of the asymmetries due to each twist-3 effect from nucleon and pion, respectively, by fixing the overall strength of the relevant nonperturbative quantities by the data on the SSA A_N in $p^\uparrow p\toπX$ collision.
dc.description19 pages in LaTex. Some discussions added. To appear in Nucl. Phys. B
dc.identifierhttps://arxiv.org/abs/hep-ph/0604003
dc.identifierhttp://arxiv.org/abs/hep-ph/0604003
dc.identifierNucl.Phys.B752:1-17,2006
dc.identifierdoi:10.1016/j.nuclphysb.2006.05.036
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/182773
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSingle Transverse Spin Asymmetry for Large-p_T Pion Production in Semi-Inclusive Deep Inelastic Scattering
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