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arXiv · 1312.6862

Three-gluon contribution to the single spin asymmetry for light hadron production in pp collision

Hiroo Beppu·Koichi Kanazawa·Yuji Koike·Shinsuke Yoshida
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Abstract

We study the twist-3 three-gluon contribution to the single spin asymmetry in the light-hadron production in pp collision in the framework of the collinear factorization. We derive the corresponding cross section formula in the leading order with respect to the QCD coupling constant. We also present a numerical calculation of the asymmetry at the RHIC energy, using a model for the three-gluon correlation functions suggested by the asymmetry observed in the $D$-meson production at RHIC.

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Hiroo Beppu, Koichi Kanazawa, Yuji Koike, Shinsuke Yoshida. 2013-12-24. Three-gluon contribution to the single spin asymmetry for light hadron production in pp collision. https://doi.org/10.1103/physrevd.89.034029

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