247 research outputs found
Screened perturbation theory
No full textKarsch F, Patkos A, Petreczky P. Screened perturbation theory. Presented at the SPIRES Conference C97/05/21
Sequential quarkonium suppression
No full textDigal S, Petreczky P, Satz H. Sequential quarkonium suppression. 2001
The QGP phase and the coupling
No full textKaczmarek O, Karsch F, Petreczky P, Zantow F. The QGP phase and the coupling. Int.J.Mod.Phys. 2005;20(16):3789-3791
QCD thermodynamics from 3-D adjoint Higgs model
No full textKarsch F, Oevers M, Patkos A, Petreczky P, Szep Z. QCD thermodynamics from 3-D adjoint Higgs model. 1998
Charmonia at finite momenta in a deconfined plasma
No full textDatta S, Karsch F, Wissel S, Petreczky P, Wetzorke I. Charmonia at finite momenta in a deconfined plasma. 2004
Temporal propagators and quasiparticles in hot QCD
No full textKarsch F, Laermann E, Petreczky P, Stickan S, Wetzorke I. Temporal propagators and quasiparticles in hot QCD. 2002
Charmonium at finite temperature
No full textPetreczky P, Datta S, Karsch F, Wetzorke I. Charmonium at finite temperature. Nucl. Phys. Proc. Suppl. 2004;129:596-598.We study charmoinum correlators and spectral functions at finite temperature within the quenched approximation using isotropic lattices with lattice spacing a(-1) = 4.86 GeV and 9.72 GeV. Although we observe some medium modifications of the ground state charmonium spectral function above deconfinement, we find that ground state charmonia (J/psi and eta(c)) exist in the deconfined phase at least up to temperatures as high as 1.5T(c). P-wave charmonia (X) on the other hand are dissociated already at 1.12T(c)
Propagators of hot SU(2) gauge theory from 3d adjoint Higgs model
No full textKarsch F, Petreczky P. Propagators of hot SU(2) gauge theory from 3d adjoint Higgs model. In: Nuclear Physics B - Proceedings Supplements. Nuclear Physics B, Proceedings Supplments. Vol 83-4. ELSEVIER SCIENCE BV; 2000: 393-395.We study propagators of the lattice 3d adjoint Higgs model, considered as an effective theory of 4d SU(2) gauge theory at high temperature. The propagators are calculated in so-called X-gauges. From the long distance behaviour of the propagators we extract the screening masses. It is shown that the pole masses extracted from the propagators agree well with the screening masses obtained recently in finite temperature SU(2) theory. The gauge dependence of the screening masses is also discussed
QCD thermodynamics: The numerical study of strongly interacting matter under extreme conditions
No full textKarsch F, Laermann E, Petreczky P, Stickan S, Wetzorke I. QCD thermodynamics: The numerical study of strongly interacting matter under extreme conditions. 2001
Propagators and dimensional reduction of hot SU(2) gauge theory
No full textCucchieri A, Karsch F, Petreczky P. Propagators and dimensional reduction of hot SU(2) gauge theory. PHYSICAL REVIEW D. 2001;64(3): 036001.We investigate the large distance behavior of the electric and magnetic propagators of hot SU(2) gauge theory in different gauges using lattice simulations of the full four-dimensional (4D) theory and the effective, dimensionally reduced, 3D theory. A comparison of the 3D and 4D propagators suggests that dimensional reduction works surprisingly well down to the temperature T=2T(c). Within statistical uncertainty the electric screening mass is found to be gauge independent. The magnetic propagator, on the other hand, exhibits a complicated gauge dependent structure at low momentum
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