Measurement of Leptonic and Hadronic Decays of omega- and phi-Mesons at RHIC by PHENIX

Conference · Mon Jan 01 00:00:00 EST 2007

OSTI ID:931213

Riabov, Yu ^[1]; Awes, Terry C ^[2]; Batsouli, Sotiria ^[3]; Cianciolo, Vince ^[2]; Efremenko, Yuri ^[3]; Read, Jr, Kenneth F ^[2]; Silvermyr, David O ^[2]; Sorensen, Soren P ^[4]; Stankus, Paul W ^[2]; Young, Glenn R ^[2]; Zhang, Chun ^[3]

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1. Petersburg Nuclear Physics Institute, Gatchina, Russia
2. ORNL
3. University of Tennessee, Knoxville (UTK) & Oak Ridge National Laboratory (ORNL)
4. University of Tennessee, Knoxville (UTK)

The PHENIX experiment at RHIC has measured production of {omega}- and {phi}-mesons in p + p, d + Au and Au+Au collisions at {radical}s{sub NN}=62.4 and 200 GeV. Transverse momentum (mass) spectra measured in hadronic and di-electron decay channels are found to be in agreement with each other within the errors. Nuclear modification factors R{sub AA} measured for both mesons are consistent with results obtained for other neutral mesons. The position of the meson mass peaks and their widths reconstructed in hadronic decay channels are in agreement with their properties measured in vacuum.

• 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: 931213
• 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

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
DECAY
MESONS
MODIFICATIONS
PRODUCTION
QUARK MATTER
SPECTRA
TRANSVERSE MOMENTUM