Quarkonium correlators and lattice QCD

1
Quarkonium correlators and lattice QCD
Peter Petreczky (BNL)
Euclidean correlators
Jakovác, P.P., Petrov, Velytsky, hep-lat/0611017
Quarkonia properties at Tgt0
Transport coefficient
Heavy quark diffusion
1S charmonium states survies with almost no
medium modifications
Interactions
Free streaming Collision less
Boltzmann equation
Effective Langevin theory
2
Finite value of D is not a
constant
P.P. and D. Teaney, PRD 73 (06) 014508
can be tested on the lattice
Future
Lattice Calculations Extension to large quenched
lattices













Anisotropic lattice Jakovác, P.P., Petrov,
Velytsky, hep-lat/0611017
Data from isotropic lattice ( Datta et al, )
Light quark diffusion constant chiral HYP
fermioms
100-200 Tflop year
6 Tflop year
Calculations of heavy quark diffusion in full
lattice QCD
rule out or confirm
Computer resources BG/L _at_ BNL