Nuclear Theory Seminars at Texas A&M: Fall 2010

Location: Cyclotron Building (434), Seminar Room

Octorber, 22, 4:00pm
      Nuclear Seminar
Jinfeng Liao -BNL-
The many facets of sQGP: E-M duality, fluidity. "


In the last ten years, the RHIC experiments have shown the creation of a dramatic form of hot QCD matter that expands like a "perfect fluid" and strongly quenches high energy jets. These findings imply the underlying microscopic dynamics is still strongly coupled (sQGP), thus opening windows for non-perturbative emergent degrees of freedom. In this talk I will discuss a possible "magnetic scenario" which describes the near Tc plasma as a mixture of both color-electric charges (quarks,gluons) and color-magnetic monopoles. An overview on the theoretical motivation, lattice evidence, and phenomenological implications will be given. I will then end this talk with a brief discussion on a question of more general interests: how "perfect" this QCD fluid is as compared with e.g. water. This first concerns what is a quality measure of fluidity: a proposal will be made and used to compare various fluids.

Friday, November 12, 4:00pm
Nuclear Seminar
Chiho Nonaka
-University of Nagoya
"Charmonium spectral functions in quark-gluon plasma from lattice QCD

From phenomenological considerations, J/psi suppression was proposed as a signature of QGP production in relativistic heavy ion collisions, and has been considered as one of the most promising ones in relativistic heavy ion collisions. On the other hand, previous studies with lattice QCD and effective theories show possibility of existence of q-\bar{q} correlations even above the critical temperature. We study the charmonium spectral functions in quark-gluon plasma on 64^3 X Nt quenched anisotropic lattices, analyzing correlation functions of charmonium by the maximum entropy method (MEM). In particular we focus on a finite momentum effect on the charmonium spectral functions in order to understand J/Psi suppression mechanism in relativistic heavy ion collisions from the first principles of QCD.

Friday, November 19, 4:00pm
Nuclear Seminar
Nuray Er
-Physics Department, Abant Izzet Baysal University, Bolu, Turkey

Spinodal instabilities and early growth of baryon density fluctuations in symmetric nuclear matter are investigated in the basis of the stochastic extension of the relativistic mean-field approach in the semiclassical approximation. The system exhibits most unstable behavior at higher baryon densities around \rho = 0.4 \rho_0

Previous seminars

Spring 2010
Fall 2009
Spring 2009
Fall 2008
Spring 2008
Fall 2007
Spring 2007
Fall 2006
Spring 2006
Fall 2005
Spring 2005
Fall 2004
Spring 2004
Fall 2003

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