EPJ Web Conf.
Volume 130, 2016MESON 2016 – 14th International Workshop on Meson Production, Properties and Interaction
|Number of page(s)||6|
|Section||05 Meson production - contributions|
|Published online||29 November 2016|
Photoproduction of vector mesons: from ultraperipheral to semi-central heavy ion collisions
1 Institute of Nuclear Physics, Polish Academy of Sciences, Kraków, Poland
2 University of Rzeszów, Rzeszów, Poland
* e-mail: firstname.lastname@example.org
Published online: 29 November 2016
We discuss nuclear cross sections for AA → AAV and AA → AAVV reactions with one or two vector mesons in the final state. Our analysis is done in the impact parameter space equivalent photon approximation. This approach allows to consider the above processes taking into account distance between colliding nuclei. We consider both ultraperipheral and semi-central collisions. We are a first group which undertook a study of single J/ψ photoproduction for different centrality bins. We show that one can describe new ALICE experimental data by including geometrical effects of collisions in the flux factor.
Next, total and differential cross section for double-scattering mechanism in the exclusive AA → AAVV reaction in ultrarelativistic ultraperipheral heavy ion collisions is presented. In this context we consider double photoproduction and photon-photon processes. Simultaneously, we get very good agreement of our results with STAR (RHIC), CMS and ALICE (LHC) experimental data for single ρ0 and J/ψ vector meson production. A comparison of our predictions for exclusive four charged pions production is also presented.
© The Authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.