Coherent Vector Meson Production in Ultra-Peripheral Heavy-Ion Collisions at STAR
Nuclear Experiment
2011-07-19 v1
Abstract
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.
Keywords
Cite
@article{arxiv.nucl-ex/0210028,
title = {Coherent Vector Meson Production in Ultra-Peripheral Heavy-Ion Collisions at STAR},
author = {F. Meissner},
journal= {arXiv preprint arXiv:nucl-ex/0210028},
year = {2011}
}
Comments
4 pages, 4 figures, Talk presented at Quark Matter 2002, Nantes, France, July 2002