Open charm production at RHIC
Abstract
Description
In this report, we present the measurements of open charm production at mid-rapidity in p+p, d+Au, and Au+Au collisions at RHIC energies. The techniques of direct reconstruction of open charm via its hadronic decay and indirect measurements through its semileptonic decay are discussed. The beam energy dependence of total charm cross section, electron \pt spectra, and their comparisons to theoretical calculations, including NLO pQCD, are presented. The electron spectra in p+p, d+Au, and Au+Au collisions at \srt=200 GeV show significant variation. The open charm absolute cross section at midrapidity and its centrality dependence are compared to those of inclusive hadrons integrated over $p_{T}>1.5$ GeV/c.
Talk presented at XXXIV International Symposium on Multiparticle Dynamics; July 26 - August 1, 2004; Sonoma State University, Sonoma County, California, USA (9 pages, 4 figures, get rid of style tex file)
Talk presented at XXXIV International Symposium on Multiparticle Dynamics; July 26 - August 1, 2004; Sonoma State University, Sonoma County, California, USA (9 pages, 4 figures, get rid of style tex file)