[Triumf-seminars] TRIUMF Seminar today at 14:00

[postmaster at admin.triumf.ca]

Date/Time: Tue 2008-02-19 at 14:00

Location:  Auditorium          

Speaker:   Simon Turbide (McGill University, DNP Thesis Prize Winner)

Title:     Electromagnetic Signals at SPS and RHIC

Abstract: The production of real and virtual photons in relativistic heavy-ion collisions is studied.  Low-p_T photons, dominated by hadron gas contributions, are evaluated within a massive Yang-Mills approach.  Earlier calculations are reexamined with additional constraints, including new production channels and form-factors. The intermediate to high-$p_T$ region is dominated by the physics of jets. A treatment, complete to leading-order in the strong coupling, is used to calculate energy loss in the strongly interacting medium. This approach is convolved with a physical description of the initial spatial distribution of jets and with an expansion of the emission zone. The role played by jet-plasma interactions is highlighted, showing that they dominate in the range 2 $< p_T <$ 4 GeV, at the Relativistic Heavy Ion Collider (RHIC).

Stimulants available 15 minutes before the talk.

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