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arXiv · 0805.0622

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

STAR Collaboration·B. I. Abelev
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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.

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STAR Collaboration, B. I. Abelev. 2009-02-09. Indications of Conical Emission of Charged Hadrons at the BNL Relativistic Heavy Ion Collider. https://doi.org/10.1103/physrevlett.102.052302

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