[institut] Seminar Fizickog fakulteta - podsetnik

[Mirzeta Savic]

Sreda, 2. decembar u 11.15, Fizicki amfiteatar, 661

 

Michael Murray, University of Kansas

Title: Modeling  the Early Universe with Relativistic Heavy Ion Collisions

 

 

Abstract:

Ultra-relativistic heavy ions produce matter at temperatures comparable 

to the early universe 1 microsecond after the big bang. The ions 

involved in these collisions produce suffer enormous decelerations 

during which the kinetic energy of the ions is used to produce tens of 

thousands of particles. The interacting matter created in these 

collisions behaves as a very opaque fluid with a viscosity close to the 

quantum limit. In addition the hydrodynamic evolution of the matter 

seems to start extremely rapidly after the ions collide suggest that the 

matter reaches thermal equilibrium almost immediately. By studying these 

collisions on an event by event basis we are starting to glimpse the 

state of this matter at the moment it was created. Recent data  provides 

a window into the birth of a system that serves as a model for the early 

universe.

 

 

 

 

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