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Diffractive ρ production at small x in future electron-ion colliders

Gonçalves, V. P. LU ; Navarra, F. S. and Spiering, D. (2016) In Journal of Physics G: Nuclear and Particle Physics 43(9).
Abstract

The future electron-ion (eA) collider is expected to probe the high energy regime of the quantum chromodynamics (QCD), with the exclusive vector meson production cross section being one of the most promising observables. In this paper we complement previous studies of exclusive processes presenting a comprehensive analysis of diffractive ρ production at small x. We compute the coherent and incoherent cross sections taking into account non-linear QCD dynamical effects and considering different models for the dipole-proton scattering amplitude and vector meson wave function. The dependence of these cross sections on the energy, photon virtuality, nuclear mass number and squared momentum transfer is analysed in detail. Moreover, we compare... (More)

The future electron-ion (eA) collider is expected to probe the high energy regime of the quantum chromodynamics (QCD), with the exclusive vector meson production cross section being one of the most promising observables. In this paper we complement previous studies of exclusive processes presenting a comprehensive analysis of diffractive ρ production at small x. We compute the coherent and incoherent cross sections taking into account non-linear QCD dynamical effects and considering different models for the dipole-proton scattering amplitude and vector meson wave function. The dependence of these cross sections on the energy, photon virtuality, nuclear mass number and squared momentum transfer is analysed in detail. Moreover, we compare the non-linear predictions with those obtained in the linear regime. Finally, we also estimate the exclusive photon, and φ production and compare with the results obtained for ρ production. Our results demonstrate that the analysis of diffractive ρ production in future electron-ion colliders will be important in understanding the non-linear QCD dynamics.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
quantum chromodynamics, small-x physics, vector meson production
in
Journal of Physics G: Nuclear and Particle Physics
volume
43
issue
9
publisher
IOP Publishing
external identifiers
  • scopus:84985905083
  • wos:000382303200002
ISSN
0954-3899
DOI
10.1088/0954-3899/43/9/095002
language
English
LU publication?
yes
id
8b08ddbf-cb5a-47a0-a8c9-729641ac7fab
date added to LUP
2016-12-09 09:47:54
date last changed
2017-06-11 05:11:24
@article{8b08ddbf-cb5a-47a0-a8c9-729641ac7fab,
  abstract     = {<p>The future electron-ion (eA) collider is expected to probe the high energy regime of the quantum chromodynamics (QCD), with the exclusive vector meson production cross section being one of the most promising observables. In this paper we complement previous studies of exclusive processes presenting a comprehensive analysis of diffractive ρ production at small x. We compute the coherent and incoherent cross sections taking into account non-linear QCD dynamical effects and considering different models for the dipole-proton scattering amplitude and vector meson wave function. The dependence of these cross sections on the energy, photon virtuality, nuclear mass number and squared momentum transfer is analysed in detail. Moreover, we compare the non-linear predictions with those obtained in the linear regime. Finally, we also estimate the exclusive photon, and φ production and compare with the results obtained for ρ production. Our results demonstrate that the analysis of diffractive ρ production in future electron-ion colliders will be important in understanding the non-linear QCD dynamics.</p>},
  articleno    = {095002},
  author       = {Gonçalves, V. P. and Navarra, F. S. and Spiering, D.},
  issn         = {0954-3899},
  keyword      = {quantum chromodynamics,small-x physics,vector meson production},
  language     = {eng},
  month        = {08},
  number       = {9},
  publisher    = {IOP Publishing},
  series       = {Journal of Physics G: Nuclear and Particle Physics},
  title        = {Diffractive ρ production at small x in future electron-ion colliders},
  url          = {http://dx.doi.org/10.1088/0954-3899/43/9/095002},
  volume       = {43},
  year         = {2016},
}