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Open Access Publications from the University of California

Elliptic flow in small systems due to elliptic gluon distributions?

  • Author(s): Hagiwara, Y
  • Hatta, Y
  • Xiao, BW
  • Yuan, F
  • et al.

© 2017 The Authors 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 v2as 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.

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