Conical Emission in Heavy Ion Collisions
arXiv:0807.1613 · doi:10.1088/0954-3899/35/10/104032
Abstract
A broadened or double humped away-side structure was observed in 2-particle azimuthal jet-like correlations at RHIC and SPS. This modification can be explained by conical emission, from either Mach-cone shock waves or Cherenkov 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 jet-like correlations are studied for their power to distinguish conical emission from other mechanisms. This article discusses Mach-cone shock waves, Cherenkov gluon radiation and the experimental evidence for conical emission from RHIC and SPS.
Talk given at QM2008, Jaipur, India. 8 pages, 7 figures