Cold Nuclear Matter Effects on Quarkonium Production from the SPS to the LHC
Conference
·
OSTI ID:947242
The J/{psi}, {psi}{prime} and {chi}c production yields are expected to be considerably suppressed in a quark-gluon plasma. In addition, the {Gamma} states, with the possible exception of the 1S state, are also expected to be suppressed. However, in proton-nucleus collisions all the quarkonium production cross sections scale less than linearly with the number of binary nucleon-nucleon collisions. These 'cold nuclear matter' effects need to be accounted for before signals of the high density QCD medium can be identified in the measurements made in nucleus-nucleus collisions. There are two cold nuclear matter effects important for midrapidity quarkonium production: 'nuclear absorption', a final-state effect, and shadowing, an initial-state effect. We characterize these effects and study their energy and rapidity dependence.
- Research Organization:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 947242
- Report Number(s):
- LLNL-CONF-410236
- Country of Publication:
- United States
- Language:
- English
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