Production of omega mesons in p plus p, d plus Au, Cu plus Cu, and Au plus Au collisions at root s(NN)=200 Gev
The PHENIX experiment at the Relativistic Heavy Ion Collider has measured {omega} meson production via leptonic and hadronic decay channels in p + p, d + Au, Cu + Cu, and Au + Au collisions at {radical}s{sub NN} = 200 GeV. The invariant transverse momentum spectra measured in different decay modes give consistent results. Measurements in the hadronic decay channel in Cu + Cu and Au + Au collisions show that {omega} production has a suppression pattern at high transverse momentum, similar to that of {pi}{sup 0} and {eta} in central collisions, but no suppression is observed in peripheral collisions. The nuclear modification factors, R{sub AA}, are consistent in Cu + Cu and Au + Au collisions at similar numbers of participant nucleons.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider (RHIC)
- Sponsoring Organization:
- USDOE SC OFFICE OF SCIENCE (SC)
- DOE Contract Number:
- DE-AC02-98CH10886
- OSTI ID:
- 1043364
- Report Number(s):
- BNL-96681-2011-JA; PRVCAN; R&D Project: PO 003; KB0201021; TRN: US1203121
- Journal Information:
- Physical Review, C (Nuclear Physics), Vol. 84, Issue 4; ISSN 0556-2813
- Country of Publication:
- United States
- Language:
- English
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