<div class="csl-bib-body">
<div class="csl-entry">Lindenbauer, F. (2024, November 15). <i>Pre-hydrodynamic jet momentum broadening beyond the jet quenching parameter</i> [Conference Presentation]. Light ion collisions at the LHC, Geneva, Switzerland.</div>
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dc.identifier.uri
http://hdl.handle.net/20.500.12708/204905
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dc.description.abstract
Studying the initial pre-hydrodynamic stages in heavy-ion collisions is an exciting research frontier, which becomes even more important for light-ion collisions. There, the system spends a larger time fraction before hydrodynamization, where the plasma is initially very far from equilibrium, and standard hydrodynamic methods are less reliable. This out-of-equilibrium plasma may affect and influence the propagation of hard partons and jets. To calculate the medium-induced gluon spectrum of such a parton and consequently jet energy loss, knowledge of the momentum broadening kernel is required, often used in a harmonic approximation using the jet quenching parameter $\hat q$. In this talk, I will present our results for the momentum-broadening kernel from QCD kinetic theory, which describes the probability of a jet parton receiving a momentum kick. In particular, the results for the broadening kernel are consistent with the previous extraction of the jet quenching parameter $\hat q$, and we find that at early times, small momentum exchange processes are more likely than expected from a Landau-matched thermal system, which is opposite at large momenta. Our results may lead to a better understanding of jet quenching during the initial stages, which can be particularly significant for light-ion collisions.
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dc.description.sponsorship
FWF - Österr. Wissenschaftsfonds
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dc.description.sponsorship
Österr. Akademie der Wissenschaften
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dc.language.iso
en
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dc.subject
heavy-ion collisions
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dc.subject
jet quenching
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dc.subject
Kinetic theory
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dc.title
Pre-hydrodynamic jet momentum broadening beyond the jet quenching parameter
