Measurement of High-pT Single Electrons from Heavy-Flavor Decays in p+p Collisions at √(s)=200 GeV
Creators
- Adare, A.1
- Bickley, A. A.1
- Ellinghaus, F.1
- Glenn, A.1
- Kinney, E.1
- Nagle, J. L.1
- Seele, J.1
- Wysocki, M.1
- Afanasiev, S.2
- Isupov, A.2
- Litvinenko, A.2
- Malakhov, A.2
- Peresedov, V.2
- Rukoyatkin, P.2
- Zolin, L.2
- Aidala, C.3, 4
- Chi, C. Y.3, 4
- Cole, B. A.3, 4
- D'Enterria, D.3, 4
- Jia, J.3, 4
- and others
- PHENIX Collaboration
- 1. University of Colorado, Boulder, Colorado 80309 (United States)
- 2. Joint Institute for Nuclear Research, 141980 Dubna, Moscow Region (Russian Federation)
- 3. Nevis Laboratories, Irvington, New York 10533 (United States)
- 4. Columbia University, New York, New York 10027 (United States)
Description
The momentum distribution of electrons from decays of heavy flavor (charm and bottom) for midrapidity vertical bar y vertical bar<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±0.02stat±0.18sys for 0.3<pT<9 GeV/c. The total charm production cross section at this energy has also been deduced to be σcc=567±57stat±193sys μb
Additional details
Identifiers
- DOI
- 10.1103/PhysRevLett.97.252002;
- arXiv
- arXiv:hep-ex/0609010v1;
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 97
- Journal Issue
- 25
- Journal Page Range
- p. 252002-252002.6
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 38024477
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BEAUTY PARTICLES; BNL; BROOKHAVEN RHIC; CHARM PARTICLES; COLLISIONS; CROSS SECTIONS; ELECTRONS; FLAVOR MODEL; GEV RANGE 100-1000; PARTICLE DECAY; PARTICLE RAPIDITY; PROTON-PROTON INTERACTIONS; QUANTUM CHROMODYNAMICS; TRANSVERSE MOMENTUM
- Descriptors DEC
- ACCELERATORS; BARYON-BARYON INTERACTIONS; COMPOSITE MODELS; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIELD THEORIES; GEV RANGE; HADRON-HADRON INTERACTIONS; HEAVY ION ACCELERATORS; INTERACTIONS; LEPTONS; LINEAR MOMENTUM; MATHEMATICAL MODELS; NATIONAL ORGANIZATIONS; NUCLEON-NUCLEON INTERACTIONS; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PROPERTIES; PROTON-NUCLEON INTERACTIONS; QUANTUM FIELD THEORY; QUARK MODEL; STORAGE RINGS; US AEC; US DOE; US ERDA; US ORGANIZATIONS
Optional Information
- Notes
- (c) 2006 The American Physical Society
- Collaborations
- PHENIX Collaboration