Abstract
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.
Original language | English (US) |
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Article number | 222301 |
Journal | Physical review letters |
Volume | 105 |
Issue number | 22 |
DOIs | |
State | Published - Nov 24 2010 |
Externally published | Yes |
ASJC Scopus subject areas
- Physics and Astronomy(all)