Solar energy paper index
In-medium QCD splittings beyond the soft, large-$N_c$ and harmonic-oscillator approximations all at once
One-line summary
A solar energy research paper on In-medium QCD splittings beyond the soft, large-$N_c$ and harmonic-oscillator approximations all at once.
Engineering notes
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Chinese explanation / 中文解读
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Original abstract
Nearly thirty years ago, Baier, Dokshitzer, Mueller, Peigné, Schiff, and Zakharov (BDMPS-Z) introduced a formalism to calculate the fully differential probability for a high-energy quark or gluon to radiate inside a finite-volume QCD plasma. We report on the first, complete numerical solution to the BDMPS-Z equations for in-medium QCD splittings. Our numerical routines are precise across phase-space, enabling a determination of the in-medium splitting functions that is significantly beyond the state-of-the-art, including finite-energy effects, subleading-color contributions, and a realistic model for parton-medium interactions. We quantify the uncertainties associated with standard approximations in the literature, revealing substantial deviations across phase-space. This work opens a path toward more precise calculations of jet observables and for powerful new constraints of medium parameters from high-energy heavy-ion collider data.
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