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Title: A first determination of the unpolarized quark TMDs from a global analysis

Abstract

Transverse momentum dependent distribution and fragmentation functions of unpolarized quarks inside unpolarized protons are extracted, for the first time, through a simultaneous analysis of semi-inclusive deep-inelastic scattering, Drell-Yan and Z boson hadroproduction processes. This study is performed at leading order in perturbative QCD, with energy scale evolution at the next-to-leading logarithmic accuracy. Moreover, some specific choices are made to deal with low scale evolution around 1 GeV2. Since only data in the low transverse momentum region are considered, no matching to fixed-order calculations at high transverse momentum is needed.

Authors:
 [1];  [1];  [2];  [3];  [4]
  1. INFN, Pavia
  2. INFN Pavia; INFN Cagliari
  3. INFN Pavia
  4. Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1432664
Report Number(s):
JLAB-THY-18-2628; DOE/OR/23177-4324; arXiv:1801.08443
DOE Contract Number:  
AC05-06OR23177
Resource Type:
Conference
Journal Name:
Proceedings of Science
Additional Journal Information:
Journal Volume: QCDEV2017; Conference: QCD Evolution Workshop (QCD 2017), 22-26 May 2017. Newport News, VA, USA
Country of Publication:
United States
Language:
English

Citation Formats

Bacchetta, Alessandro, Delcarro, Filippo, Pisano, Cristian, Radici, Marco, and Signori, Andrea. A first determination of the unpolarized quark TMDs from a global analysis. United States: N. p., 2018. Web.
Bacchetta, Alessandro, Delcarro, Filippo, Pisano, Cristian, Radici, Marco, & Signori, Andrea. A first determination of the unpolarized quark TMDs from a global analysis. United States.
Bacchetta, Alessandro, Delcarro, Filippo, Pisano, Cristian, Radici, Marco, and Signori, Andrea. Sun . "A first determination of the unpolarized quark TMDs from a global analysis". United States. https://www.osti.gov/servlets/purl/1432664.
@article{osti_1432664,
title = {A first determination of the unpolarized quark TMDs from a global analysis},
author = {Bacchetta, Alessandro and Delcarro, Filippo and Pisano, Cristian and Radici, Marco and Signori, Andrea},
abstractNote = {Transverse momentum dependent distribution and fragmentation functions of unpolarized quarks inside unpolarized protons are extracted, for the first time, through a simultaneous analysis of semi-inclusive deep-inelastic scattering, Drell-Yan and Z boson hadroproduction processes. This study is performed at leading order in perturbative QCD, with energy scale evolution at the next-to-leading logarithmic accuracy. Moreover, some specific choices are made to deal with low scale evolution around 1 GeV2. Since only data in the low transverse momentum region are considered, no matching to fixed-order calculations at high transverse momentum is needed.},
doi = {},
journal = {Proceedings of Science},
number = ,
volume = QCDEV2017,
place = {United States},
year = {2018},
month = {4}
}

Conference:
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