Ultra-peripheral collisions of fully stripped gold ions at RHIC energies

Guclu M. C.

Journal of Physics G: Nuclear and Particle Physics, vol.31, no.4, 2005 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 31 Issue: 4
  • Publication Date: 2005
  • Doi Number: 10.1088/0954-3899/31/4/029
  • Journal Name: Journal of Physics G: Nuclear and Particle Physics
  • Journal Indexes: Science Citation Index Expanded, Scopus


In relativistic heavy-ion collisions, the strong Lorentz-contracted electromagnetic fields are capable of producing copious numbers of lepton pairs through the two-photon mechanism. The calculated cross section of electron-positron pair production at the Relativistic Heavy Ion Collider (RHIC) is about 33 000 barns and pair production can occur at large impact parameters. Here we calculate differential cross sections of pair production as a function of transverse momentum pT, rapidity, invariant mass and impact parameter. © 2005 IOP Publishing Ltd.