Published August 2003
| Version v1
Journal article
Dileptons from a chemically equilibrating quark-gluon plasma
- 1. Research Center of Nuclear Theory of National Laboratory of Heavy Ion Accelerator of Lanzhou, Lanzhou 730000 (China)
- 2. Shanghai Institute of Nuclear Research, Chinese Academy of Sciences, P.O. Box 800-204, Shanghai 201800 (China)
- 3. CCAST (World Laboratory), P.O. Box 8730, Beijing 100080 (China)
- 4. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100039 (China)
Description
We have studied the evolution and dilepton production of a chemically equilibrating quark-gluon system at finite baryon density. We found that due to the increase of the quark phase lifetime with increasing initial quark chemical potential and other factors, such as, higher initial temperature, larger gluon density, and gluon fusion or quark annihilation cross section, thermal charmed quarks provide a dominant contribution to the dilepton yield. This results in a significant enhancement of intermediate mass dilepton production
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review. C, Nuclear Physics
- Journal Volume
- 68
- Journal Issue
- 2
- Journal Page Range
- p. 024902-024902.7
- ISSN
- 0556-2813
- CODEN
- PRVCAN
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 36023063
- Subject category
- S73: NUCLEAR PHYSICS AND RADIATION PHYSICS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANNIHILATION; BARYONS; C QUARKS; CROSS SECTIONS; DENSITY; EVOLUTION; GLUONS; HEAVY ION REACTIONS; LEPTONS; LIFETIME; NUCLEAR REACTION YIELD; PARTICLE PRODUCTION; POTENTIALS; QUARK MATTER
- Descriptors DEC
- BOSONS; CHARM PARTICLES; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INTERACTIONS; MATTER; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; PHYSICAL PROPERTIES; POSTULATED PARTICLES; QUARKS; YIELDS
Optional Information
- Notes
- (c) 2003 The American Physical Society