In large-Nc and harmonic oscillator limits, medium-induced splittings are computed analytically double-differential in z and θ, with an improved semi-hard approximation validated for high-energy partons.
Intensity of gluon bremsstrahlung in a finite plasma
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abstract
The intensity of single gluon bremsstrahlung in a QCD plasma is evaluated with a Monte Carlo which solves the transport equation for a generic interaction with the medium. In particular the calculation is performed for a Debye screened potential and compared to the well known Gaussian/Fokker-Planck results. The full calculation including the first and last gluons show a qualitatively different behavior from the BDMPS result for any finite medium length. It is shown that the emission intensity is underestimated for the Gaussian approximation, compared to the Debye screened potential. This change can not be accounted for by a redefinition of the Gaussian parameter ($\hat{q}$).
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Proposes dijet mass modification as observable for parton energy loss, applies SCET jet functions to heavy flavor jets in nuclear collisions, and develops opacity expansion for in-medium showers.
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Full energy fraction and angular dependence of medium-induced splittings in the large-$N_c$ limit
In large-Nc and harmonic oscillator limits, medium-induced splittings are computed analytically double-differential in z and θ, with an improved semi-hard approximation validated for high-energy partons.
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Aspects of heavy flavor jet physics in heavy ion collisions
Proposes dijet mass modification as observable for parton energy loss, applies SCET jet functions to heavy flavor jets in nuclear collisions, and develops opacity expansion for in-medium showers.
- Quantum simulating multi-particle processes in high energy nuclear physics: dijet production and color (de)coherence