Exclusive production of lepton, quark and meson pairs in peripheral ultrarelativistic heavy ion collisions

Abstract

We discuss exclusive production of lepton-antilepton, quark-antiquark, $\pi \pi$ and ${\rho }^0{\rho }^0$ pairs in ultraperipheral, ultrarelativistic heavy-ion collisions. The cross sections for exclusive production of pairs of particles is calculated in Equivalent Photon Approximation (EPA). 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 used in the literature. Absorption effects are discussed and quantified. The cross sections obtained with realistic form factors are significantly smaller than those obtained with the monopole form factors.

9 pages, 13 figures an invited talk at the international conference "Hadron Structure 2011", Slovakia, June 2011

References in corpus (7)

• The Physics of Ultraperipheral Collisions at the LHC
• An Implication on the Pion Distribution Amplitude from the Pion-Photon Transition Form Factor with the New BABAR Data
• Exclusive muon-pair productions in ultrarelativistic heavy-ion collisions: Realistic nucleus charge form factor and differential distributions
• Exclusive production of rho^0 rho^0 pairs in gamma-gamma collisions at RHIC
• Two-photon annihilation into octet meson pairs: symmetry relations in the handbag approach
• Heavy-quark pair production in polarized photon-photon collisions at next-to-leading order: Fully integrated total cross sections
• Double -- photon exclusive processes with heavy quark -- heavy antiquark pairs in high-energy Pb-Pb collisions at LHC

Cited by in corpus (1)

• Multiple scattering production of lepton-pairs in ultraperipheral heavy-ion collisions