Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2010-04-30
Phys.Rev.C82:014904,2010
Physics
Nuclear Physics
Nuclear Theory
26 pages, 35 figures, figures and discussion added
Scientific paper
10.1103/PhysRevC.82.014904
The cross sections for exclusive muon pair production in nucleus - nucleus collisions are calculated and several differential distributions are shown. Realistic (Fourier transform of charge density) charge form factors of nuclei are used and the corresponding results are compared with the cross sections calculated with monopole form factor often used in the literature and discussed recently in the context of higher-order QED corrections. Absorption effects are discussed and quantified. The cross sections obtained with realistic form factors are significantly smaller than those obtained with the monopole form factor. The effect is bigger for large muon rapidities and/or large muon transverse momenta. The predictions for the STAR and PHENIX collaboration measurements at RHIC as well as the ALICE and CMS collaborations at LHC are presented.
Klusek-Gawenda Mariola
Szczurek Antoni
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