Rishi Sharma
(LANL)
28/07/2009, 14:00
Heavy Ion Physics/Hot and Dense QCD
We calculate the charm and beauty parton distribution functions and
fragmentation functions for open heavy mesons in vacuum using their operator
definitions in factorized perturbative QCD and find leading corrections that
arise from the structure of the final-state hadrons. Using thermal potentials
calculated on the lattice we demonstrate the existence of open heavy flavor
bound state...
Dr
Haidong Liu
(University of California (UCD)-Unknown-Unknown)
28/07/2009, 14:25
Heavy Ion Physics/Hot and Dense QCD
The measurements of charmonium and bottomonium resonances in ultra-relativistic heavy-ion collisions provide crucial information on the dynamics of the created high-density QCD matter. The suppression of heavy quark-antiquark bound states is generally agreed to be one of the most direct probes of QGP formation due to screening of the color potential in the plasma. In addition, the production...
Dr
Scott Pratt
(Michigan State University)
28/07/2009, 14:50
Heavy Ion Physics/Hot and Dense QCD
I will review how two-particle correlations, or Hanbury-Brown Twiss (HBT) measurements, are providing detailed tests of the hydrodynamic evolution of heavy ion collisions at RHIC. The talk will focus on how hydrodynamics is implemented for this kind of physics and how the details of the implementation can affect final-state observables, especially HBT.
Helen Louise Caines
(Yale University)
28/07/2009, 15:15
Heavy Ion Physics/Hot and Dense QCD
By studying p-p collisions we hope to improve our understanding of the
fundamental constituents of matter and how they form into colorless
objects. Measurements of the inclusive jet cross-sections and
fragmentation properties have confirmed that QCD based calculations give
a good description of the hard scattering processes. However, as our
analysis of jets has improved it has...
Terence Tarnowsky
(Michigan State University)
28/07/2009, 15:40
Heavy Ion Physics/Hot and Dense QCD
The measurement of particle correlations and fluctuations has been suggested as a method to search for the existence of a phase transition in relativistic heavy ion collisions. A change in the observed fluctuations is expected in global quantities such as baryon number, strangeness, or charge near a QCD critical point or a first order phase transition.
Results for short and long-range...
Dr
Ilya Selyuzhenkov
(Indiana University)
28/07/2009, 16:30
Heavy Ion Physics/Hot and Dense QCD
One of the most interesting and important phenomena predicted
to occur in heavy ion collisions is the local strong parity violation.
In non-central collisions, it is expected to result in charge separation
of produced particles along the system's orbital momentum.
I will report on results of the charge separation measurement
in Au+Au and Cu+Cu collisions at sqrt{sNN} = 200 and 62...
Michael Issah
(Vanderbilt University)
28/07/2009, 16:55
Heavy Ion Physics/Hot and Dense QCD
An important goal of the experiments at the Relativistic Heavy Ion Collider (RHIC) is to produce and study the hot and dense matter produced in heavy-ion collisions. To this effect, several probes are used to infer the properties of the matter formed. Two such probes are jets produced in hard scattering processes and anisotropic flow from pressure gradients which develop in the expanding...
Dr
Monika Sharma for the STAR Collaboration
(Wayne State University)
28/07/2009, 17:20
Heavy Ion Physics/Hot and Dense QCD
The event anisotropy measurements at RHIC suggest the matter created in heavy-ion collision flows with very little viscosity. Precise determination of "shear viscosity-to-entropy density"
ratio is currently a subject of extensive study[1]. We present measurements of differential transverse momentum correlation functions from the STAR experiment in Au+Au collisions
at $\sqrt{s_{NN}}$ = 200...
Josh Vredevoogd
(MSU)
28/07/2009, 17:45