Heavy Quarkonia Production in p+p Collisions from the PHENIX Experiment
- University of Colorado
- ORNL
- University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL)
- University of Tennessee, Knoxville (UTK)
Quarkonia provide a sensitive probe of the properties of the hot dense medium created in high-energy heavy-ion collisions. Hard scattering processes result in the production of heavy quark pairs that interact with the collision medium during hadronization. These in-medium interactions convey information about the fundamental properties of the medium itself and can be used to examine the modification of the QCD confining potential in the collision environment. Baseline measurements from p+p and d+Au collision systems are used to distinguish cold nuclear matter effects while measurements from heavy-ion collision systems are used to quantify in-medium effects. The PHENIX experiment has the capability of detecting heavy quarkonia at 1.2 < |{eta}| < 2.2 via the {mu}{sup +}{mu}{sup -} decay channel and at |{eta}| < 0.35 via the e{sup +}e{sup -} decay channel. Recent runs have resulted in the collection of a high statistics p+p data set that provides an essential baseline reference for heavy-ion measurements and allow for further critical evaluation of heavy quarkonia production mechanisms. The latest PHENIX results for the production of the J/{psi} mesons in p+p collisions are presented.
- Research Organization:
- Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC05-00OR22725
- OSTI ID:
- 931207
- Resource Relation:
- Conference: 19th International Conference on Ultra-Relativistic Nucleus-Nucleus Collisions: Quark Matter 2006, Shanghai, China, 20061114, 20061120
- Country of Publication:
- United States
- Language:
- English
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