2006/09/06 by PHENIX Collaboration, S. Afanasiev, A. Adare +98 · 5 citations
Physics and Astronomy · #Charm (quantum number) #High-Energy Particle Collisions Research #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #hep-ex
paper · pdf · doi:10.1103/physrevlett.97.252002
published as Phys.Rev.Lett.97:252002,2006 · 375 authors from 57 institutions, 6 pages, 3 figures. Submitted to Physical Review Letters. Plain text data tables for the points plotted in figures for this and previous PHENIX publications are (or will be) publicly available at http://www.phenix.bnl.gov/papers.html
arxiv created 2006/09/06 · openalex publication_date 2006/12/21 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The momentum distribution of electrons from decays of heavy flavor (charm and bottom) for midrapidity |y|<0.35 in p+p collisions at √(s)=200 GeV has been measured by the PHENIX experiment at the BNL Relativistic Heavy Ion Collider over the transverse momentum range 0.3<pT<9 GeV/c. Two independent methods have been used to determine the heavy-flavor yields, and the results are in good agreement with each other. A fixed-order-plus-next-to-leading-log perturbative QCD calculation agrees with the data within the theoretical and experimental uncertainties, with the data/theory ratio of 1.71\ifmmode±\else\textpm\fi0.02stat\ifmmode±\else\textpm\fi0.18sys for 0.3<pT<9 GeV/c. The total charm production cross section at this energy has also been deduced to be \ensuremathσ_cc=567\ifmmode±\else\textpm\fi57stat\ifmmode±\else\textpm\fi193sys \ensuremathμb.