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arXiv · 2110.14384

The importance of multiple scatterings in medium-induced gluon radiation

Carlota Andres·Fabio Dominguez·Marcos Gonzalez Martinez
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Abstract

In this work we disentangle the underlying physical picture of the in-medium gluon radiation process across its different energy regimes by comparing the recently obtained fully-resummed -- without any further approximations -- BDMPS-Z in-medium emission spectrum with the extensively used analytical approaches. We observe that in the high-energy regime the radiation process is dominated by a single hard scattering, while in the intermediate-energy region coherence effects among multiple scatterings are crucial. Finally, we prove that in the low-energy regime the dynamics is again controlled by a single scattering but where one must include a suppression factor accounting for the probability of not having any further scatterings.

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Carlota Andres, Fabio Dominguez, Marcos Gonzalez Martinez. 2021-10-27. The importance of multiple scatterings in medium-induced gluon radiation. https://doi.org/10.21468/scipostphysproc.10.016

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