Topology Studies of Hydrodynamics Using Two-Particle Correlation Analysis

Journal Article · Fri Dec 11 04:00:00 EST 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.242301· OSTI ID:21370893

Takahashi, J; Tavares, B M; Qian, W L; Andrade, R; Grassi, F; Hama, Y; Kodama, T; Xu, N ^[1]

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1. Universidade Estadual de Campinas, Sao Paulo, 13083-970 (Brazil)

The effects of fluctuating initial conditions are studied in the context of relativistic heavy ion collisions where a rapidly evolving system is formed. Two-particle correlation analysis is applied to events generated with the NEXSPHERIO hydrodynamic code, starting with fluctuating nonsmooth initial conditions (IC). The results show that the nonsmoothness in the IC survives the hydroevolution and can be seen as topological features of the angular correlation function of the particles emerging from the evolving system. A long range correlation is observed in the longitudinal direction and in the azimuthal direction a double peak structure is observed in the opposite direction to the trigger particle. This analysis provides clear evidence that these are signatures of the combined effect of tubular structures present in the IC and the proceeding collective dynamics of the hot and dense medium.

• OSTI ID: 21370893
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 24 Vol. 103; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANGULAR CORRELATION
CORRELATIONS
ENERGY RANGE
FLUID MECHANICS
FUNCTIONS
HEAVY ION REACTIONS
HYDRODYNAMICS
MATHEMATICS
MECHANICS
NUCLEAR REACTIONS
RELATIVISTIC RANGE
TOPOLOGY