Chiho Nonaka
(Nagoya University)
15/06/2010, 08:30
Nonzero temperature and density
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.
On the other hand, previous studies from lattice QCD and effective theories
show possibility of existence of q-\bar{q} correlations even above the critical
temperature. We study the...
Hiroshi Ohno
(University of Tsukuba)
15/06/2010, 09:10
Nonzero temperature and density
We calculate the meson spectral functions (SPFs) via the variational analysis to investigate the behavior of discrete spectra on a finite volume lattice at finite temperature. Although the vairational method can not extract the whole information of the SPFs, it can calculate the value of SPFs at several low-lying spectra. Therefore, the method will be useful to test if the low-lying states...
Heng-Tong DING
(Bielefeld University)
15/06/2010, 09:30
Nonzero temperature and density
We investigate the charmonium correlators and spectral functions in quenched
QCD, using Clover improved Wilson fermions on very fine (0.01 fm) isotropic lattices at 0.75 $T_c$ ($ 128^3\times96 $) and 1.5 $T_c$ ($128^3 \times48 $). We focus on the thermal modification of the correlation and spectral functions. The charmonium dissociation temperature as well as the heavy quark diffusion...
Frithjof Karsch
(Brookhaven National Laboratory and Bielefeld University)
15/06/2010, 09:50
Nonzero temperature and density
We report on a continuum extrapolation of the vector current
correlation function for light valence quarks in the deconfined phase
of quenched QCD. The vector meson correlator is calculated at
T=1.5 Tc at four values of the cut-off on lattices up to size
128^3x48. We determine the first three, non-vanishing thermal
moments of the vector meson spectral function. We find that
ratios of...
