Abstract
We study evolution equations describing jet propagation through quark-gluon plasma (QGP). In particular we investigate the contribution of momentum transfer during branching and find that such a contribution is sizeable. Furthermore, we study various approximations, such as the Gaussian approximation and the diffusive approximation to the jet-broadening term. We notice that in order to reproduce the BDIM equation (without the momentum transfer in the branching) the diffusive approximation requires a very large value of the jet-quenching parameter \( \hat{q} \).
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Blanco, E., Kutak, K., Płaczek, W. et al. Medium induced QCD cascades: broadening and rescattering during branching. J. High Energ. Phys. 2021, 14 (2021). https://doi.org/10.1007/JHEP04(2021)014
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DOI: https://doi.org/10.1007/JHEP04(2021)014