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Title: Challenges in the extraction of TMDs from SIDIS data: perturbative vs non-perturbative aspects

We present our recent results on the study of the Semi-Inclusive Deep Inelastic Scattering (SIDIS) cross section as a function of the transverse momentum, qT. Using the Collins-Soper-Sterman (CSS) formalism, we study the matching between the region where fixed-order perturbative QCD can successfully be applied and the region where soft gluon resummation is necessary. We find that the commonly used prescription of matching through the so-called Y-factor cannot be applied in the SIDIS kinematical configurations we examine. We comment on the impact that the nonperturbative component has even at relatively high energies.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. aDipartimento di Fisica Teorica, Università di Torino, Via P. Giuria 1, I-10125 Torino, Italy
  2. INFN, Sezione di Torino, and Dipartimento di Fisica Teorica, Università di Torino, Via P. Giuria 1, I-10125 Torino, Italy
  3. Univ. Torino, Torino, Italy
  4. Jefferson Laboratory, 12000 Je erson Avenue, Newport News, VA 23606, USA
Publication Date:
OSTI Identifier:
1224699
Report Number(s):
JLAB-THY-15-2141; DOE/OR/23177-3595
DOE Contract Number:
AC05-06OR23177
Resource Type:
Conference
Resource Relation:
Journal Name: Proceedings of Science; Journal Volume: DIS2015; Conference: DIS 2015, April 27 - May 1, 2015, Southern Methodist University, Dallas, Texas
Research Org:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS