Electron-muon correlation as a new probe to strongly interacting quark-gluon plasma

Details Electron-muon correlation as a new probe to strongly interacting quark-gluon plasma Electron-muon correlation as a new probe to strongly interacting quark-gluon plasma

2009-07-03

arxiv.org/abs/0907.0588v1

Phys.Rev.C80:031901,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures

Scientific paper

10.1103/PhysRevC.80.031901

As a new and clean probe to the strongly interacting quark-gluon plasma (sQGP), we propose an azimuthal correlation of an electron and a muon which originate from the semileptonic decay of charm and bottom quarks. By solving the Langevin equation for the heavy quarks under the hydrodynamic evolution of the hot plasma, we show that substantial quenching of the away-side peak in the electron-muon correlation can be seen if the sQGP drag force acting on heavy quarks is large enough as suggested from the gauge/gravity correspondence. The effect could be detected in high-energy heavy-ion collisions at the Relativistic Heavy Ion Collider and the Large Hadron Collider.

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