https://doi.org/10.1051/epjconf/20123706006
Exclusive production of π+π− and π0π0 pairs in photon-photon and in ultrarelativistic heavy ion collisions
1 Institute of Nuclear Physics PAN, PL-31-342 Cracow, Poland
2 University of Rzeszów, PL-35-959 Rzeszów, Poland
a e-mail: mariola.klusek@ifj.edu.pl
The γγ → ππ reactions are discussed. To describe those processes, we include dipion continuum, resonances, high-energy pion-pion rescatterings, ρ meson exchange and pQCD Brodsky-Lepage mechanisms. The cross section for the production of pion pairs in photon-photon collisions in peripheral heavy ion collisions is calculated with the help of Equivalent Photon Approximaption (EPA) in the impact parameter space. We show predictions at √sNN TeV which could be measured e.g. by the ALICE collaboration at the LHC.
© Owned by the authors, published by EDP Sciences, 2012
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
