First complete numerical solution of BDMPS-Z equations for in-medium QCD splittings, going beyond soft, large-Nc and harmonic-oscillator approximations.
Induced Gluon Radiation in a QCD Medium
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abstract
Soft gluon radiation induced by multiple scattering of a fast quark or gluon propagating through QCD matter is discussed. After revisiting the Landau-Pomeranchuk-Migdal effect in QED we show that large formation times of bremsstrahlung quanta determine the QCD radiation intensity (in analogy to QED) and derive the gluon energy spectrum. Coherent suppression takes place as compared to the Bethe-Heitler situation of independent emissions. As a result the energy loss of fast partons in a QCD medium depends on the incident energy $E$ similarly to QED, $-dE/dz \propto \sqrt{E}$.
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In-medium QCD splittings beyond the soft, large-$N_c$ and harmonic-oscillator approximations all at once
First complete numerical solution of BDMPS-Z equations for in-medium QCD splittings, going beyond soft, large-Nc and harmonic-oscillator approximations.