Nuclear Physics Seminars

ics Nuclear
Tuesday, November 22, 2011
3:30 PM
Physics Building, Room 204
Tom Hemmick [Host: Nilanga Liyanage]
Stony Brook University
"Exploring Early Times in the QGP Evolution through Direct Virtual Photons"
 
 Slideshow (PDF)
ABSTRACT:
Among the most exciting discoveries about the Quark-Gluon Plasma State is its extraordinary opacity to color-charged objects (quarks and gluons). This property, while facilitating rapid equilibration of the plasma, hides the state at the earliest times from direct measurement. Colorless probes (direct real and virtual photons) provide access to the earliest time scales, but suffer from huge backgrounds of electromagnetic decays of light mesons. In this seminar, we'll explore how the mass of virtual photons can be used to reduce background from light mesons and provide access to the direct plasma "shine" from the earliest times.
SLIDESHOW:

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