Coherent photo-production of ρ0 mesons in ultra-peripheral Pb-Pb collisions at the LHC measured by ALICE
Henryk Niewodniczański Institute of Nuclear Physics Polish Academy of Sciences (PAN) 31-342 Kraków
a e-mail: Christoph.Mayers@ifj.edu.pl
Published online: 26 November 2014
We present the differential cross section for coherent ρ0 photo-production at mid-rapidity (−0.5 < y < 0.5) measured by the ALICE experiment in Pb-Pb collisions at √sNN = 2.76 TeV at the LHC, as well as the total ρ0 cross section obtained by modelbased extrapolation to all rapidities. These cross sections are compared to various model predictions, as well as to earlier measurements at RHIC. In addition, we present results on nuclear breakup in coincidence with coherent ρ0 photo-production.
© Owned by the authors, published by EDP Sciences, 2014
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