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Title: Elliptic flow in small systems due to elliptic gluon distributions?

We investigate the contributions from the so-called elliptic gluon Wigner distributions to the rapidity and azimuthal correlations of particles produced in high energy pp and pA collisions by applying the double parton scattering mechanism. We compute the ‘elliptic flow’ parameter v 2 as a function of the transverse momentum and rapidity, and find qualitative agreement with experimental observations. This shall encourage further developments with more rigorous studies of the elliptic gluon distributions and their applications in hard scattering processes in pp and pA collisions.
Authors:
 [1] ;  [2] ;  [3] ;  [4]
  1. Kyoto Univ. (Japan). Dept. of Physics
  2. Kyoto Univ. (Japan). Yukawa Inst. for Theoretical Physics
  3. Central China Normal University, Wuhan (China). Key Lab. of Quark and Lepton Physics (MOE), Inst. of Particle Physics
  4. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division
Publication Date:
Grant/Contract Number:
AC02-05CH11231
Type:
Published Article
Journal Name:
Physics Letters. Section B
Additional Journal Information:
Journal Volume: 771; Journal Issue: C; Journal ID: ISSN 0370-2693
Publisher:
Elsevier
Research Org:
Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (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
OSTI Identifier:
1360989
Alternate Identifier(s):
OSTI ID: 1408464

Hagiwara, Yoshikazu, Hatta, Yoshitaka, Xiao, Bo-Wen, and Yuan, Feng. Elliptic flow in small systems due to elliptic gluon distributions?. United States: N. p., Web. doi:10.1016/j.physletb.2017.05.083.
Hagiwara, Yoshikazu, Hatta, Yoshitaka, Xiao, Bo-Wen, & Yuan, Feng. Elliptic flow in small systems due to elliptic gluon distributions?. United States. doi:10.1016/j.physletb.2017.05.083.
Hagiwara, Yoshikazu, Hatta, Yoshitaka, Xiao, Bo-Wen, and Yuan, Feng. 2017. "Elliptic flow in small systems due to elliptic gluon distributions?". United States. doi:10.1016/j.physletb.2017.05.083.
@article{osti_1360989,
title = {Elliptic flow in small systems due to elliptic gluon distributions?},
author = {Hagiwara, Yoshikazu and Hatta, Yoshitaka and Xiao, Bo-Wen and Yuan, Feng},
abstractNote = {We investigate the contributions from the so-called elliptic gluon Wigner distributions to the rapidity and azimuthal correlations of particles produced in high energy pp and pA collisions by applying the double parton scattering mechanism. We compute the ‘elliptic flow’ parameter v 2 as a function of the transverse momentum and rapidity, and find qualitative agreement with experimental observations. This shall encourage further developments with more rigorous studies of the elliptic gluon distributions and their applications in hard scattering processes in pp and pA collisions.},
doi = {10.1016/j.physletb.2017.05.083},
journal = {Physics Letters. Section B},
number = C,
volume = 771,
place = {United States},
year = {2017},
month = {5}
}