Higher Order QED Calculation of Ultrarelativistic Heavy Ion Production of mu+ mu- Pairs

Details Higher Order QED Calculation of Ultrarelativistic Heavy Ion Production of mu+ mu- Pairs Higher Order QED Calculation of Ultrarelativistic Heavy Ion Production of mu+ mu- Pairs

2009-01-07

arxiv.org/abs/0901.0891v2

Phys.Rev.C80:034901,2009

Physics

Nuclear Physics

Nuclear Theory

7 pages, 3 figures. Version expanded with explanatory text and two appendices on form factor treatment

Scientific paper

10.1103/PhysRevC.80.034901

A higher order QED calculation of the ultraperipheral heavy ion cross section for mu+ mu- pair production at RHIC and LHC is carried out. The so-called "Coulomb corrections" lead to an even greater percentage decrease of mu+ mu- production from perturbation theory than the corresponding decrease for e+ e- pair production. Unlike the e+ e- case, the finite charge distribution of the ions (form factor) and the necessary subtraction of impact parameters with matter overlap are significant effects in calculation an observable ultraperipheral mu+ mu- total cross section.

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