title: New mechanism for quark energy loss.
abstract: We show that a heavy quark moving sufficiently fast through a quark-gluon plasma may lose energy by Cherenkov-radiating mesons. We demonstrate that this takes place in all strongly coupled, large-N{c} plasmas with a gravity dual. The energy loss is exactly calculable in these models despite being an O(1/N{c}) effect. We discuss implications for heavy-ion collision experiments.
authors.affiliation: Physics Department, Theory Unit, CERN, CH-1211 Genève 23, Switzerland.
authors.forename: Jorge
authors.initials: J
authors.lastname: Casalderrey-Solana
authors.forename: Daniel
authors.initials: D
authors.lastname: Fernández
authors.forename: David
authors.initials: D
authors.lastname: Mateos