منابع مشابه
Dilepton Emission from Dense Hadron Gas
Using a Hagedorn resonance gas picture and quark-hadron duality we estimate the dilepton emission rate in the vicinity of the QCD deconfinement phase transition. The result is then used to calculate a dilepton spectrum in ultrarelativistic heavy ion collisions. We show that multibody contributions taken into account in the Hagedorn resonance gas approach provide an enhancement of the production...
متن کاملDilepton Emission from a Resonance Gas
We consider the dilepton emission from a dense and hot hadron gas near a critical point. The hadron gas is described as a resonance one. The dilepton spectrum generated by vector resonances is shown to be equivalent to the one generated by quarks.
متن کاملHigh-energy Hadron-induced Dilepton Production from Nucleons and Nuclei
We review the production of high-mass lepton pairs in fixed-target experiments, including both Drell-Yan (DY) and heavy quarkonium production (J/ψ, ψ, Υ(1S), Υ(2S), and Υ(3S)). In recent years DY data has become standard input to the determination of parton density distributions. DY data has recently yielded the first measurement of the x-dependence of the d̄/ū asymmetry of the proton. Similar t...
متن کاملDilepton emission from an equilibrating non - abelian plasma
We study dilepton production from a thermally equilibrating quark-gluon plasma expected to be formed in ultra relativistic heavy-ion collisions, within the color flux-tube model. We have solved the Boltzmann equation with Non-abelian features explicitly incorporated. Quark and antiquark distribution functions, used to calculate the dilepton emission rate, are defined in an extended phase space ...
متن کاملNeutrino synchrotron emission from dense magnetized electron gas of neutron stars
We study the synchrotron emission of neutrino pairs by relativistic, degenerate electrons in strong magnetic fields. Particular attention is paid to the case in which the dominant contribution comes from one or several lowest cyclotron harmonics. Calculations are performed using the exact quantum formalism and the quasiclassical approach. Simple analytic fits to the neutrino synchrotron emissiv...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 1998
ISSN: 1434-6044
DOI: 10.1007/s100520050224