Coherent Vector Meson Production in Ultra-Peripheral Heavy-Ion Collisions at STAR

Details Coherent Vector Meson Production in Ultra-Peripheral Heavy-Ion Collisions at STAR Coherent Vector Meson Production in Ultra-Peripheral Heavy-Ion Collisions at STAR

2002-10-20

arxiv.org/abs/nucl-ex/0210028v1

Nucl.Phys.A715:522-525,2003

Physics

Nuclear Physics

Nuclear Experiment

4 pages, 4 figures, Talk presented at Quark Matter 2002, Nantes, France, July 2002

Scientific paper

10.1016/S0375-9474(02)01506-3

We report the first observation of coherent rho0 production (AuAu->AuAu rho0) and rho0 production accompanied by mutual nuclear Coulomb excitation (AuAu->Au*Au*rho0),and the observation of coherent e+e- pair production (AuAu->Au*Au*e+e-) in ultra-peripheral relativistic heavy-ion collisions (UPCs). We give transverse momentum, mass, and rapidity distributions. The cross sections for coherent rho0 production at sqrt{s_NN}=130 and 200 GeV are in agreement with theoretical predictions, which treat rho^0 production and nuclear excitation as independent processes.

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