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Double spin asymmetry A_(LT) in direct photon production

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arxiv 1203.3956 v1 pith:5OBBKT73 submitted 2012-03-18 hep-ph

Double spin asymmetry A_(LT) in direct photon production

Zuo-Tang Liang , Andreas Metz , Daniel Pitonyak , Andreas Sch\"afer , Yu-Kun Song , Jian Zhou This is my paper
classification hep-ph
keywords asymmetrycollineardirectdoublephotonproductionspintwist-3
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We study the longitudinal-transverse double spin asymmetry $A_{LT}$ for direct photon production in nucleon-nucleon scattering by using the collinear twist-3 approach. This asymmetry, which, for instance, could be measured at RHIC, contains a complete set of collinear twist-3 correlation functions in a transversely polarized nucleon.

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