Title

Strong-Field Effects for Lepton and Photon Production in Collisions of Relativistic Heavy Nuclei at RHIC and LHC

Abstract

We consider effects of strong electromagnetic fields in collisions of ultra-relativistic nuclei at the RHIC and LHC colliders. Since the parameter Zα is not small (Zα≈0.6 for Au-Au and Pb-Pb collisions), the whole series in Zα has to be summed in order to obtain the cross section with sufficient accuracy. For the production of lepton pairs we present new results related to the Coulomb corrections (corresponding to multi-photon exchange of the produced leptons with the nuclei) and to the unitarity corrections (corresponding to the exchange of light-by-light blocks between nuclei). For nuclear bremsstrahlung we calculated the unitarity corrections and a special case related to virtual Delbrück scattering.

Meeting Name

International Conference on the Structure and the Interactions of the Photon (2009: May 11-15, Hamburg; Germany)

Department(s)

Physics

Keywords and Phrases

Coulomb Corrections; Heavy Nucleus; Lepton Pairs; Multiphotons; New Results; Pb-Pb Collisions; Photon Production; Unitarity; Colliding Beam Accelerators; Electromagnetic Fields; Lead; Photons

International Standard Book Number (ISBN)

9783935702331

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

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