| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10725012 | Physics Letters B | 2012 | 5 Pages |
Abstract
We investigate the one-gluon-exchange (ααs) corrections to the polarized real photon structure function g1γ(x,Q2) in the massive parton model. We employ a technique based on the Cutkosky rules and the reduction of Feynman integrals to master integrals. The NLO contribution is noticeable at large x and does not vanish at the threshold of the massive quark pair production due to the Coulomb singularity. It is found that the first moment sum rule of g1γ is satisfied up to the NLO.
Related Topics
Physical Sciences and Engineering
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Nuclear and High Energy Physics
Authors
Norihisa Watanabe, Yuichiro Kiyo, Ken Sasaki,