Universal Flow-Driven Conical Emission in Ultrarelativistic Heavy-Ion Collisions

Details Universal Flow-Driven Conical Emission in Ultrarelativistic Heavy-Ion Collisions Universal Flow-Driven Conical Emission in Ultrarelativistic Heavy-Ion Collisions

2010-05-29

arxiv.org/abs/1005.5461v2

Phys.Rev.Lett.105:222301,2010

Physics

Nuclear Physics

Nuclear Theory

4 pages, 3 figures

Scientific paper

10.1103/PhysRevLett.105.222301

The double-peak structure observed in soft-hard hadron correlations is commonly interpreted as a signature for a Mach cone generated by a supersonic jet interacting with the hot and dense medium created in ultrarelativistic heavy-ion collisions. We show that it can also arise due to averaging over many jet events in a transversally expanding background. We find that the jet-induced away-side yield does not depend on the details of the energy-momentum deposition in the plasma, the jet velocity, or the system size. Our claim can be experimentally tested by comparing soft-hard correlations induced by heavy-flavor jets with those generated by light-flavor jets.

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