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Direct- and resolved-photon threshold resummation for polarized high- pT hadron production at COMPASS

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Uebler, Claudia ; Schäfer, Andreas ; Vogelsang, Werner
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Date of publication of this fulltext: 20 Mar 2019 13:12


We complete our earlier study of the "direct" part of the cross section and spin asymmetry for the photoproduction process gamma N -> hX by analyzing the "resolved" contribution, for which the photon couples like a hadron through its parton structure. The incident photon and nucleon are longitudinally polarized and one observes a hadron h at high transverse momentum pT. Soft or collinear gluon ...


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