Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis
Abstract
We perform a new Monte Carlo QCD analysis of pion parton distribution functions, including for the first time transverse momentum dependent pion-nucleus Drell-Yan cross sections, together with pT-integrated Drell-Yan and leading neutron electroproduction data from HERA. We assess the sensitivity of the Monte Carlo fits to kinematic cuts, factorization scale, and parametrization choice, and discuss the impact of the various data sets on the pion's quark and gluon distributions. This study provides the necessary step towards the simultaneous analysis of collinear and transverse momentum dependent pion distributions and the determination of the pion's 3-dimensional structure.
- Publication Date:
- Research Org.:
- Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Workforce Development for Teachers and Scientists (WDTS)
- Contributing Org.:
- Jefferson Lab Angular Momentum (JAM) Collaboration
- OSTI Identifier:
- 1788139
- Alternate Identifier(s):
- OSTI ID: 1797886
- Report Number(s):
- JLAB-THY-21-3328; DOE/OR/23177-5143
Journal ID: ISSN 2470-0010; PRVDAQ; 114014
- Grant/Contract Number:
- AC05-06OR23177; FG02-03ER41260; DESC0014664; SC0014664
- Resource Type:
- Published Article
- Journal Name:
- Physical Review D
- Additional Journal Information:
- Journal Name: Physical Review D Journal Volume: 103 Journal Issue: 11; Journal ID: ISSN 2470-0010
- Publisher:
- American Physical Society
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 73 NUCLEAR PHYSICS AND RADIATION PHYSICS
Citation Formats
Cao, N. Y., Barry, P. C., Sato, N., Melnitchouk, W., and Jefferson Lab Angular Momentum. Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis. United States: N. p., 2021.
Web. doi:10.1103/PhysRevD.103.114014.
Cao, N. Y., Barry, P. C., Sato, N., Melnitchouk, W., & Jefferson Lab Angular Momentum. Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis. United States. https://doi.org/10.1103/PhysRevD.103.114014
Cao, N. Y., Barry, P. C., Sato, N., Melnitchouk, W., and Jefferson Lab Angular Momentum. Mon .
"Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis". United States. https://doi.org/10.1103/PhysRevD.103.114014.
@article{osti_1788139,
title = {Towards the three-dimensional parton structure of the pion: Integrating transverse momentum data into global QCD analysis},
author = {Cao, N. Y. and Barry, P. C. and Sato, N. and Melnitchouk, W. and Jefferson Lab Angular Momentum},
abstractNote = {We perform a new Monte Carlo QCD analysis of pion parton distribution functions, including for the first time transverse momentum dependent pion-nucleus Drell-Yan cross sections, together with pT-integrated Drell-Yan and leading neutron electroproduction data from HERA. We assess the sensitivity of the Monte Carlo fits to kinematic cuts, factorization scale, and parametrization choice, and discuss the impact of the various data sets on the pion's quark and gluon distributions. This study provides the necessary step towards the simultaneous analysis of collinear and transverse momentum dependent pion distributions and the determination of the pion's 3-dimensional structure.},
doi = {10.1103/PhysRevD.103.114014},
journal = {Physical Review D},
number = 11,
volume = 103,
place = {United States},
year = {Mon Jun 14 00:00:00 EDT 2021},
month = {Mon Jun 14 00:00:00 EDT 2021}
}
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