Indications of Conical Emission of Charged Hadrons at the BNL Relativistic Heavy Ion Collider

Abstract

Three-particle azimuthal correlation measurements with a high transverse momentum trigger particle are reported for pp, d+Au, and Au+Au collisions at 200 GeV by the STAR experiment. Dijet structures are observed in pp, d+Au and peripheral Au+Au collisions. An additional structure is observed in central Au+Au data, signaling conical emission of correlated charged hadrons. The conical emission angle is found to be 1.37 +- 0.02(stat) +0.06-0.07(syst), independent of pt.

7 pages, 4 figures, 1 table

References in corpus (7)

• Dihadron azimuthal correlations in Au+Au collisions at sqrt(s_NN)=200 GeV
• Jet Shapes in Opaque Media
• Three-particle azimuthal correlations and Mach shocks
• Away-side azimuthal distribution in a Markovian parton scattering model
• Momentum conservation and correlation analyses in heavy-ion collisions at ultrarelativistic energies
• Methods for Jet Studies with Three-Particle Correlations
• Analysis Method for Jet-Like Three-Particle Azimuthal Correlations

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