Zobrazeno 1 - 10
of 424
pro vyhledávání: '"Dirks M"'
We investigate the time dependence of the quantum statistical model with $\lambda \phi^4/4!$ self-interaction and consider the resulting induced particle number density. For a special example in which the classical approximation exhibits parametric r
Externí odkaz:
http://arxiv.org/abs/hep-ph/0105189
Publikováno v:
Phys.Lett. B484 (2000) 58-63
We investigate the decay of metastable states with broken CP-symmetry which have recently been proposed by Kharzeev, Pisarski and Tytgat to form in hot hadronic matter. We consider the efficiency of the amplification of the $\eta'$-field via parametr
Externí odkaz:
http://arxiv.org/abs/hep-ph/0005051
Within the Closed Time Path Formalism of Thermal Field Theory we calculate the hard photon emission rate as well as the collisional energy-loss rate for a quark-gluon plasma away from chemical equilibrium. Mass singularities are shown to be dynamical
Externí odkaz:
http://arxiv.org/abs/hep-ph/9910353
Publikováno v:
Phys.Lett. B461 (1999) 131-137
A Slavnov-Taylor identity is derived for the gluon polarization tensor in hot QCD. We evaluate its implications for damping of gluonic modes in the plasma. Applying the identity to next to the leading order in hard-thermal-loop resummed perturbation
Externí odkaz:
http://arxiv.org/abs/hep-ph/9907439
We investigate the production rate for hard real photons and the collisional energy loss in the quark-gluon plasma away from chemical equilibrium. Applying the Hard-Thermal-Loop resummation scheme away from equilibrium, we can show that Landau dampin
Externí odkaz:
http://arxiv.org/abs/hep-ph/9809214
Publikováno v:
Proceedings of the National Academy of Sciences of the United States of America, 2002 Feb . 99(4), 2299-2302.
Externí odkaz:
https://www.jstor.org/stable/3057959
Publikováno v:
Acta Phys.Polon.B28:2873-2895,1997
The electromagnetic emissivity from QCD media away from equilibrium is studied in the framework of closed time path thermal field theory. For the dilepton rate a nonequilibrium mesonic medium is considered applying finite temperature perturbation the
Externí odkaz:
http://arxiv.org/abs/hep-ph/9711213
Publikováno v:
Phys.Rev. D56 (1997) 2548-2554
In the framework of closed time path thermal field theory we investigate the production rate of hard thermal photons from a QCD plasma away from equilibrium. Dynamical screening provides a finite rate for chemically non-equilibrated distributions of
Externí odkaz:
http://arxiv.org/abs/hep-ph/9704262
The production of soft dileptons in a thermal mesonic medium is discussed in the context of recent CERN experimental data reported by the CERES Collaboration. We do not intend to give a general and critical review, but instead concentrate mainly on o
Externí odkaz:
http://arxiv.org/abs/hep-ph/9612448
Publikováno v:
Phys.Rev. D55 (1997) 4344-4354
A systematic study of low mass dilepton production from $\pi-\rho$ interactions in a hot medium is presented. Applying finite temperature perturbation theory the dilepton rate, respectively the virtual photon rate, is computed up to order $g_\rho^2$.
Externí odkaz:
http://arxiv.org/abs/hep-ph/9610210