PoS - Proceedings of Science
Volume 374 - Light Cone 2019 - QCD on the light cone: from hadrons to heavy ions (LC2019) - Contributed
Dissociative production of vector mesons as a new tool to study gluon saturation at electron-ion colliders
D. Bendova,* J. Cepila, J.G. Contreras
*corresponding author
Full text: pdf
Pre-published on: May 06, 2020
Published on: May 26, 2020
We present predictions for the dissociative photo- and electroproduction of light and heavy vector mesons off protons. The computation is based on the energy-dependent hot-spot model which incorporates geometric fluctuations of the target-proton partonic structure in the impact-parameter plane. We observe a striking feature of the dissociative cross section as a function of the center-of- mass energy of the photon-proton system. The cross section presents a maximum, whose position depends on the mass of the vector meson and the virtuality of the exchanged photon. By using the positions of these maxima, we define a geometric saturation scale. We find that this scale grows linearly with energy as a function of the scale of the process and we discuss the possibility to map this scale experimentally with respect to the kinematical reach of the proposed electron-ion colliders, JLEIC, eRHIC, and LHeC. This contribution presents results published in Phys. Rev. D 99, 034025 (2019).
DOI: https://doi.org/10.22323/1.374.0025
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.