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arXiv · 1406.3073

Universal Non-perturbative Functions for SIDIS and Drell-Yan Processes

Peng Sun·Joshua Isaacson·C. -P. Yuan·Feng Yuan
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Abstract

We update the well-known BLNY fit to the low transverse momentum Drell-Yan lepton pair productions in hadronic collisions, by considering the constraints from the semi-inclusive hadron production in deep inelastic scattering (SIDIS) from HERMES and COMPASS experiments. We follow the Collins-Soper-Sterman (CSS) formalism with the b_*-prescription. A universal non-perturbative form factor associated with the transverse momentum dependent quark distributions is found in the analysis with a new functional form different from that of BLNY. This releases the tension between the BLNY fit to the Drell-Yan data with the SIDIS data from HERMES/COMPASS in the CSS resummation formalism.

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Peng Sun, Joshua Isaacson, C. -P. Yuan, Feng Yuan. 2014-06-11. Universal Non-perturbative Functions for SIDIS and Drell-Yan Processes. https://arxiv.org/abs/1406.3073

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