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Physics Colloquium, November 5, 2002Jet Suppression in RHIC collisionsDavid HardtkeLBNLThe Relativistic Heavy-Ion Collider (RHIC) at Brookhaven National Laboratory provides the opportunity to study nuclear matter at extreme temperatures and densities. A primary goal of this research is to search for a transition to a new state of matter (Quark-Gluon Plasma) characterized by deconfined quarks and gluons. Due to the higher center of mass energy, RHIC provides the first opportunity to use large momentum transfer hard processes to probe the matter created in heavy-ion collisions. These hard processes are especially sensitive to the gluon densities achieved in these collisions, and are thus a useful probe of the earliest stages of the collision. In this talk, I will present recent results from RHIC on large transverse momentum observables. These results confirm earlier predictions of "Jet Quenching" in heavy-ion collisions. I will discuss what these measurements tell us about the early stages of the collision, and what we can conclude about the phases of nuclear matter under extreme conditions. 3.30 p.m., Smith Laboratory, Room 1005Refreshments served in Smith 1094 at 3:00 p.m. |
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