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

URN to cite this document:: urn:nbn:de:bvb:355-epub-396563

Uebler, Claudia ; Schäfer, Andreas ; Vogelsang, Werner

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Date of publication of this fulltext: 20 Mar 2019 13:12

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Abstract

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 ...