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arXiv · 2202.05981

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

Gregory Matousek·Vladimir Khachatryan·Jinlong Zhang
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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, $A$, and photon virtuality, $Q^{2}$, 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 $A$ and $Q^{2}$ scaling picture, along with establishing a small region of squared momentum transfer, $t$, 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.

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Gregory Matousek, Vladimir Khachatryan, Jinlong Zhang. 2022-02-12. Scaling properties of exclusive vector meson production cross section from gluon saturation. https://doi.org/10.48550/arxiv.2202.05981%2C%2010.1140%2Fepjp%2Fs13360-023-03729-4

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