Production of D and B mesons and their semileptonic decays

Abstract

We have calculated the kinematical correlations between charged leptons from semileptonic decays of open charm/bottom as well as leptons produced in the Drell-Yan mechanism in proton-proton collisions at BNL RHIC. Presented production rates for open charm and bottom were estimated by a detailed analysis of so-called nonphotonic electrons. The distributions for charm and bottom quarks pairs are calculated in the $k_t$-factorization approach with the help of the Kwieci{ń}ski unintegrated parton distributions. The hadronization of heavy quarks is done by means of Peterson et al. fragmentation function. The semileptonic decay functions are found by fitting recent semileptonic data obtained by the CLEO and BABAR. We get good description of recent PHENIX data.

arXiv comment3 pages, 2 figures, talk by R. Maciula at 11th International Workshop on Meson Production, Properties and Interaction, Cracow, Poland, 10 - 15 June 2010

References in corpus (4)

• Parton distributions incorporating QED contributions
• Measurement of high-p_T Single Electrons from Heavy-Flavor Decays in p+p Collisions at sqrt(s) = 200 GeV
• Dilepton mass spectra in p+p collisions at sqrt(s)= 200 GeV and the contribution from open charm
• A new correlation method to identify and separate charm and bottom production processes at RHIC