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Aug 12 – 18, 2012
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Thermal dileptons in high-energy heavy ion collisions with 3+1D relativistic hydrodynamics

Aug 15, 2012, 8:30 AM
20m
Diplomat

Diplomat

Oral Presentation Electroweak probes Parallel 3C: Electro-Weak Probes (Chair J. Kapusta)

Speaker

Gojko Vujanovic (McGill University)

Description

The penetrating nature of dileptons makes them suitable probes to explore the properties of the strongly-interacting medium created in relativistic nuclear collisions. This study investigates thermal dilepton production using MUSIC (a Monotone Upstream-centered Scheme for Ion Collisions): a 3+1D hydrodynamic simulation with or without shear viscosity. We utilize dilepton emission rates that are derived from in-medium hadronic spectral functions, and from pQCD. In addition to the invariant mass and momentum distributions, the elliptic flow of lepton pairs is calculated, and the effects of a finite shear viscosity coefficient are also analyzed. We present results appropriate for measurements by the PHENIX and STAR collaborations, and make predictions for the LHC.

Primary author

Gojko Vujanovic (McGill University)

Co-authors

Bjoern Schenke (Brookhaven National Laboratory) Charles Gale (McGill University) Clint Young (McGill University) Ralf Rapp (Texas A&M University) Sangyong Jeon (McGill University)

Presentation materials

Peer reviewing

Paper