A theory of jet shapes and cross sections: from hadrons to nuclei

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dc.creatorVitev, Ivan
dc.creatorWicks, Simon
dc.creatorZhang, Ben-Wei
dc.date2008-10-15
dc.date.accessioned2026-07-07T13:16:15Z
dc.date.available2026-07-07T13:16:15Z
dc.descriptionFor jets, with great power comes great opportunity. The unprecedented center of mass energies available at the LHC open new windows on the QGP: we demonstrate that jet shape and jet cross section measurements become feasible as a new, differential and accurate test of the underlying QCD theory. We present a first step in understanding these shapes and cross sections in heavy ion reactions. Our approach allows for detailed simulations of the experimental acceptance/cuts that help isolate jets in such high-multiplicity environment. It is demonstrated for the first time that the pattern of stimulated gluon emission can be correlated with a variable quenching of the jet rates and provide an approximately model-independent approach to determining the characteristics of the medium-induced bremsstrahlung spectrum. Surprisingly, in realistic simulations of parton propagation through the QGP we find a minimal increase in the mean jet radius even for large jet attenuation. Jet broadening is manifest in the tails of the energy distribution away from the jet axis and its quantification requires high statistics measurements that will be possible at the LHC.
dc.description20 pages, 15 ps and eps figures
dc.identifierhttps://arxiv.org/abs/0810.2807
dc.identifierhttp://arxiv.org/abs/0810.2807
dc.identifierJHEP 0811:093,2008
dc.identifierdoi:10.1088/1126-6708/2008/11/093
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/230732
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleA theory of jet shapes and cross sections: from hadrons to nuclei
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