Exclusive four-pion photoproduction in ultra-peripheral heavy-ion collisions at RHIC and LHC energies

Abstract

We study the photoproduction of exclusive $2{\pi }^{+}2{\pi }^{-}$ mesons in ultra-peripheral heavy-ion collisions at RHIC and LHC energies. Predictions in photon-nucleus interactions are calculated for various resonances at central and forward rapidities. The recent H1 preliminary data are utilized to improve the description of the poorly known $\gamma p\to 4{\pi }^{\pm }p$ process. We present the comparisons of our results to the available STAR data at RHIC, and made predictions for LHC energies.

Comments: 12 pages, 4 figures, 2 tables, presented at XXVI Cracow EPIPHANY Conference, LHC Physics: Standard Model and Beyond