Coherent rho^0 Production in Ultra-Peripheral Heavy Ion Collisions
Nuclear Experiment
2008-11-26 v2 High Energy Physics - Experiment
Abstract
The STAR collaboration reports the first observation of exclusive rho^0 photo-production, AuAu->AuAu rho^0, and rho^0 production accompanied by mutual nuclear Coulomb excitation, AuAu->Au*Au*rho^0, in ultra-peripheral heavy-ion collisions. The rho^0 have low transverse momenta, consistent with coherent coupling to both nuclei. The cross sections at sqrt(s_NN)=130GeV agree with theoretical predictions treating rho^0 production and Coulomb excitation as independent processes.
Keywords
Cite
@article{arxiv.nucl-ex/0206004,
title = {Coherent rho^0 Production in Ultra-Peripheral Heavy Ion Collisions},
author = {C. Adler},
journal= {arXiv preprint arXiv:nucl-ex/0206004},
year = {2008}
}
Comments
6 pages, 5 figures, 2 tables, submitted to Phys. Rev. Lett updated version, one new figure and table