ARE THERE MACH CONES IN HEAVY ION COLLISIONS?-Reference-Cited by-同舟云学术

ARE THERE MACH CONES IN HEAVY ION COLLISIONS?

Published:2007-08 Issue:07n08 Volume:16 Page:2005-2010
ISSN:0218-3013
Container-title:International Journal of Modern Physics E
language:en
Short-container-title:Int. J. Mod. Phys. E

Author:

,ULERY JASON GLYNDWR¹

Affiliation:

1. Department of Physics, Purdue University, 525 Northwestern Avenue, West Lafayette, Indiana 47907, USA

Abstract

We present results from STAR on 3-particle azimuthal correlations for a 3 < pT < 4 GeV /c trigger particle with two softer 1 ≤ pT ≤ 2 GeV /c particles. Results are shown for pp , d + Au and high statistics Au + Au collisions at [Formula: see text]. We observe a 3-particle correlation in central Au + Au collisions which may indicate the presence of conical emission. In addition, the dependence of the observed signal angular position on the pT of the associated particles can be used to distinguish conical flow from simple QCD-Čerenkov radiation. An important aspect of the analysis is the subtraction of combinatorial backgrounds. Systematic uncertainties due to this subtraction and the flow harmonics v2 and v4 are investigated in detail.

Publisher

World Scientific Pub Co Pte Lt

Subject

General Physics and Astronomy,Nuclear and High Energy Physics

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218301307007374

Reference8 articles.

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