Double spin asymmetry A(LT) in direct photon production

作者：Liang, Zuo-Tang; Metz, Andreas; Pitonyak, Daniel; Schaefer, Andreas; Song, Yu-Kun; Zhou, Jian^*

来源：Physics Letters B, 2012, 712(3): 235-239.

DOI：10.1016/j.physletb.2012.04.072

• ODD PARTON DISTRIBUTIONS
• FINAL-STATE INTERACTIONS
• SINGLE-SPIN
• DRELL-YAN
• HARD-SCATTERING
• PION-PRODUCTION
• ANALYZING POWER
• POLARIZATION
• AZIMUTHAL
• QUARKS

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.

• 出版日期2012-6-6
• 单位中国科学技术大学; 山东大学