Two-particle azimuthal correlations in 4.2A GeV C+Ta collisions

Journal Article · Mon Oct 15 04:00:00 EDT 2007 · Physical Review. C, Nuclear Physics

DOI:https://doi.org/10.1103/PHYSREVC.76.047902· OSTI ID:21067860

Simic, Lj; Mendas, I ^[1]; Jotanovic, O ^[2]; Milosevic, J ^[3]

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1. Institute of Physics, P.O. Box 68, 11081 Belgrade, Serbia (Serbia and Montenegro)
2. Faculty of Natural Science, Banja Luka (Bosnia and Herzegowina)
3. Department of Physics, University of Oslo, Oslo (Norway)

Two particle azimuthal correlations are studied in 4.2A GeV C+Ta collisions observed with the 2-m propane bubble chamber exposed at JINR Dubna Synchrophasotron. The correlations are analyzed both for protons and negative pions, and their dependence on the collision centrality, rapidity and rapidity difference is investigated. It is found that protons show a weak back-to-back correlations, while a side-by-side correlations are observed for negative pions. Restricting both protons to the target or projectile fragmentation region, the side-by-side correlations are observed for protons also. Using the two particle correlation function, the flow analysis is performed and intensity of directed flow is determined without event-by event estimation of the reaction plane.

• OSTI ID: 21067860
• Journal Information: Physical Review. C, Nuclear Physics, Journal Name: Physical Review. C, Nuclear Physics Journal Issue: 4 Vol. 76; ISSN 0556-2813; ISSN PRVCAN
• Country of Publication: United States
• Language: English

Related Subjects

73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
BUBBLE CHAMBERS
CARBON 12 TARGET
CORRELATION FUNCTIONS
GEV RANGE
HEAVY ION REACTIONS
JINR
PARTICLE RAPIDITY
PIONS
PROPANE
PROTONS
TANTALUM IONS