Nonphotonic electrons at BNL RHIC within the k{sub t}-factorization approach and with experimental semileptonic decay functions
- University of Rzeszow, PL-35-959 Rzeszow (Poland)
We discuss production of nonphotonic electrons in proton-proton scattering at the relativistic heavy ion collider. The distributions in rapidity and transverse momentum of charm and bottom quarks/antiquarks are calculated in the k{sub t}-factorization approach. We use Kwiecinski unintegrated parton distributions and Ivanov-Nikolaev unintegrated gluon distribution. The hadronization of heavy quarks is done by means of Peterson and Braaten et al. fragmentation functions. The semileptonic decay functions are found by fitting recent semileptonic data obtained by the CLEO and BABAR collaborations. We get good description of the data at large transverse momenta of electrons and find a missing strength concentrated at small transverse momenta of electrons. Plausible missing mechanisms are discussed.
- OSTI ID:
- 21259895
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 79, Issue 3; Other Information: DOI: 10.1103/PhysRevD.79.034009; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
B QUARKS
BROOKHAVEN RHIC
C QUARKS
CESR STORAGE RING
COMPUTERIZED SIMULATION
DISTRIBUTION
ELECTRONS
FACTORIZATION
FRAGMENTATION
GLUONS
HEAVY ION REACTIONS
MULTIPARTICLE SPECTROMETERS
PARTICLE IDENTIFICATION
PARTICLE PRODUCTION
PARTICLE RAPIDITY
PROTON-PROTON INTERACTIONS
QUARK-ANTIQUARK INTERACTIONS
SEMILEPTONIC DECAY
T QUARKS
TRANSVERSE MOMENTUM