J-\psi Production via \chi_c Decays in 920 GeV pA Interactions
High Energy Physics - Experiment
2008-11-26 v2
Abstract
Using data collected by the HERA-B experiment, we have measured the fraction of J\psi's produced via radiative chi_c decays in interactions of 920 GeV protons with carbon and titanium targets. We obtained R_{\chi_c} = 0.32 \pm 0.06_{stat} \pm 0.04_{sys} for the fraction of J\psi from chi_c decays averaged over proton-carbon and proton-titanium collisions. This result is in agreement with previous measurements and is compared with theoretical predictions.
Cite
@article{arxiv.hep-ex/0211033,
title = {J-\psi Production via \chi_c Decays in 920 GeV pA Interactions},
author = {B Collaboration},
journal= {arXiv preprint arXiv:hep-ex/0211033},
year = {2008}
}
Comments
16 pages, 5 figs