Nuclear Physics & RIKEN Theory Seminar

"Elliptic Flow of Thermal Photons and Dileptons"

Presented by Rupa Chatterjee, Ohio State University

Friday, June 8, 2007, 2:00 pm — Small Seminar Room, Bldg. 510

Elliptic flow of thermal photons and dileptons for 200A GeV Au+Au collisions at RHIC exhibits a rich structure as a function of transverse momentum and invariant mass using hydrodynamic model. Thermal photons and dileptons are emitted from every stage of the expanding system and their transverse momentum spectra and elliptic flow provide differential windows into various stages of the fireball expansion. Contrary to hadron elliptic flow, which increases monotonically with p_T, elliptic flow of thermal photons is predicted to first rise and then fall again. In case of thermal dilepton elliptic flow, the invariant mass of the lepton pair provides an additional continuously tunable parameter for such study.

Hosted by: Agnes Mocsy

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