Conical Emission in Heavy Ion Collisions
نویسنده
چکیده
A broadened or double humped away-side structure was observed in 2particle azimuthal jet-like correlations at RHIC and SPS. This modification can be explained by conical emission, from either Mach-cone shock waves or Čerenkov gluon radiation, and by other physics mechanisms, such as large angle gluon radiation, jets deflected by radial flow and path-length dependent energy loss. Three-particle jetlike correlations are studied for their power to distinguish conical emission from other mechanisms. This article discusses Mach-cone shock waves, Čerenkov gluon radiation and the experimental evidence for conical emission from RHIC and SPS.
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