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Measurement of Single Electrons and Implications for Charm Production inAu+AuCollisions atsNN=130GeV
- Source :
- Physical Review Letters. 88
- Publication Year :
- 2002
- Publisher :
- American Physical Society (APS), 2002.
-
Abstract
- Transverse momentum spectra of electrons from Au+Au collisions at roots(NN) = 130 GeV have been measured at midrapidity by the PHENIX experiment at the Relativistic Heavy Ion Collider. The spectra show an excess above the background from photon conversions and light hadron decays. The electron signal is consistent with that expected from semileptonic decays of charm. The yield of the electron signal dN(e)/dy for p(T) > 0.8 GeV/c is 0.025 +/- 0.004(stat) +/- 0.010( syst) in central collisions, and the corresponding charm cross section is 380 +/- 60(stat) +/- 200(syst ) mub per binary nucleon-nucleon collision.
- Subjects :
- Physics
Particle physics
Photon
010308 nuclear & particles physics
High Energy Physics::Phenomenology
Nuclear Theory
Hadron
General Physics and Astronomy
Electron
01 natural sciences
7. Clean energy
Spectral line
Nuclear physics
Yield (chemistry)
0103 physical sciences
Transverse momentum
High Energy Physics::Experiment
Charm (quantum number)
Nuclear Experiment
010306 general physics
Relativistic Heavy Ion Collider
Subjects
Details
- ISSN :
- 10797114 and 00319007
- Volume :
- 88
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters
- Accession number :
- edsair.doi...........ba23b7e5fbaeee84207cf7afaa910b8b