English

Scaling properties of exclusive vector meson production cross section from gluon saturation

Nuclear Theory 2023-02-06 v2 High Energy Physics - Phenomenology Nuclear Experiment

Abstract

It is already known from phenomenological studies that in exclusive deep-inelastic scattering off nuclei there appears to be a scaling behavior of vector meson production cross section in both nuclear mass number, AA, and photon virtuality, Q2Q^{2}, which is strongly modified due to gluon saturation effects. In this work we continue those studies in a realistic setup based upon using the Monte Carlo event generator Sar{\em t}re. We make quantitative predictions for the kinematics of the Electron-Ion Collider, focusing on this AA and Q2Q^{2} scaling picture, along with establishing a small region of squared momentum transfer, tt, where there are signs of this scaling that may potentially be observed at the EIC. Our results are represented as pseudo-data of vector meson production diffractive cross section and/or their ratios, which are obtained by parsing data collected by the event generator through smearing functions, emulating the proposed detector resolutions for the future EIC.

Keywords

Cite

@article{arxiv.2202.05981,
  title  = {Scaling properties of exclusive vector meson production cross section from gluon saturation},
  author = {Gregory Matousek and Vladimir Khachatryan and Jinlong Zhang},
  journal= {arXiv preprint arXiv:2202.05981},
  year   = {2023}
}

Comments

26 pages and 18 figures