EPJ Web of Conferences
Volume 66, 2014INPC 2013 – International Nuclear Physics Conference
|Number of page(s)||6|
|Section||Hot and Dense Nuclear Matter|
|Published online||20 March 2014|
Exclusive electromagnetic production of pion pairs in lead-lead collisions at LHC *
1 The Henryk Niewodniczański Institute of Nuclear Physics PAN, PL-31-342 Kraków
2 University of Rzeszów, PL-35-959 Rzeszów
a e-mail: Mariola.Klusek@ifj.edu.pl
Published online: 20 March 2014
The cross section for π+π− and π0π0 meson pairs production in peripheral ultrarelativistic heavy-ion collisions is calculated in the impact parameter space equivalent photon approximation. The cross section is calculated at the energy available at the CERN Large Hadron Collider, √sNN = 3.5 TeV. For the first time the world data for γγ → ππ are described, both for the total cross section and for the angular distribution. This is obtained simultaneously for γγ → π+π− and γγ → π0π0 at all experimentally available energies.
© Owned by the authors, published by EDP Sciences, 2014
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.
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