Large transverse momentum in semi-inclusive deeply inelastic scattering beyond lowest order

摘要

Motivated by recently observed tension between O(α~2_s) calculations of very large transverse momentum dependence in both semi-inclusive deep inelastic scattering and Drell-Yan scattering, we repeat the details of the calculation through an O(α~2_s) transversely differential cross section. The results confirm earlier calculations, and provide further support to the observation that tension exists with current parton distribution and fragmentation functions.