Abstract
We study the space-time dependence of muon pair production from dense, non-equilibrium pion matter in the framework of a Boltzmann type transport model which properly includes effects of Bose statistics. Starting from an initially supersaturated pion gas with a large positive effective chemical potential we find that this pion chemical potential stays approximately constant during the evolution. As a consequence such a scenario leads to an increased dilepton yield near the kinematical threshold for muon pair production via pion annihilation. Depending on the lifetime of the dense hadron matter formed in relativistic heavy ion collisions, this component can e observed above the background of muon pair from resonance decays and the {rho},{omega}bump. In such a way the measurement of the di-muon invariant mass spectrum could help to understand the initial state and the dynamical evolution of ultrarelativistic heavy ion collisions. (orig.)
Kaempfer, B;
[1]
Koch, P;
[2]
Pavlenko, O P
[1]
- Forschungszentrum Rossendorf e.V. (FZR), Rossendorf bei Dresden (Germany). Inst. fuer Kern- und Hadronenphysik
- Bremen Univ. (Germany). Inst. fuer Theoretische Physik
Citation Formats
Kaempfer, B, Koch, P, and Pavlenko, O P.
Kinetics of an expanding pion gas and low-mass dilepton emission.
Germany: N. p.,
1993.
Web.
Kaempfer, B, Koch, P, & Pavlenko, O P.
Kinetics of an expanding pion gas and low-mass dilepton emission.
Germany.
Kaempfer, B, Koch, P, and Pavlenko, O P.
1993.
"Kinetics of an expanding pion gas and low-mass dilepton emission."
Germany.
@misc{etde_10135199,
title = {Kinetics of an expanding pion gas and low-mass dilepton emission}
author = {Kaempfer, B, Koch, P, and Pavlenko, O P}
abstractNote = {We study the space-time dependence of muon pair production from dense, non-equilibrium pion matter in the framework of a Boltzmann type transport model which properly includes effects of Bose statistics. Starting from an initially supersaturated pion gas with a large positive effective chemical potential we find that this pion chemical potential stays approximately constant during the evolution. As a consequence such a scenario leads to an increased dilepton yield near the kinematical threshold for muon pair production via pion annihilation. Depending on the lifetime of the dense hadron matter formed in relativistic heavy ion collisions, this component can e observed above the background of muon pair from resonance decays and the {rho},{omega}bump. In such a way the measurement of the di-muon invariant mass spectrum could help to understand the initial state and the dynamical evolution of ultrarelativistic heavy ion collisions. (orig.)}
place = {Germany}
year = {1993}
month = {Mar}
}
title = {Kinetics of an expanding pion gas and low-mass dilepton emission}
author = {Kaempfer, B, Koch, P, and Pavlenko, O P}
abstractNote = {We study the space-time dependence of muon pair production from dense, non-equilibrium pion matter in the framework of a Boltzmann type transport model which properly includes effects of Bose statistics. Starting from an initially supersaturated pion gas with a large positive effective chemical potential we find that this pion chemical potential stays approximately constant during the evolution. As a consequence such a scenario leads to an increased dilepton yield near the kinematical threshold for muon pair production via pion annihilation. Depending on the lifetime of the dense hadron matter formed in relativistic heavy ion collisions, this component can e observed above the background of muon pair from resonance decays and the {rho},{omega}bump. In such a way the measurement of the di-muon invariant mass spectrum could help to understand the initial state and the dynamical evolution of ultrarelativistic heavy ion collisions. (orig.)}
place = {Germany}
year = {1993}
month = {Mar}
}