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dc.contributor.authorD'Eramo, Francesco
dc.contributor.authorLekaveckas, Mindaugas
dc.contributor.authorLiu, Hong
dc.contributor.authorRajagopal, Krishna
dc.date.accessioned2014-07-30T12:20:53Z
dc.date.available2014-07-30T12:20:53Z
dc.date.issued2013-05
dc.date.submitted2012-12
dc.identifier.issn1029-8479
dc.identifier.issn1126-6708
dc.identifier.urihttp://hdl.handle.net/1721.1/88518
dc.description.abstractWe calculate P (k [subscript ⊥]), the probability distribution for an energetic parton that propagates for a distance L through a medium without radiating to pick up transverse momentum k [subscript ⊥], for a medium consisting of weakly coupled quark-gluon plasma. We use full or HTL self-energies in appropriate regimes, resumming each in order to find the leading large-L behavior. The jet quenching parameter [ˆ over q] is the second moment of P (k [subscript ⊥]), and we compare our results to other determinations of this quantity in the literature, although we emphasize the importance of looking at P (k [subscript ⊥]) in its entirety. We compare our results for P (k [subscript ⊥]) in weakly coupled quark-gluon plasma to expectations from holographic calculations that assume a plasma that is strongly coupled at all length scales. We find that the shape of P (k [subscript ⊥]) at modest k [subscript ⊥] may not be very different in weakly coupled and strongly coupled plasmas, but we find that P (k [subscript ⊥]) must be parametrically larger in a weakly coupled plasma than in a strongly coupled plasma — at large enough k [subscript ⊥]. This means that by looking for rare (but not exponentially rare) large-angle deflections of the jet resulting from a parton produced initially back-to-back with a hard photon, experimentalists can find the weakly coupled short-distance quark and gluon quasiparticles within the strongly coupled liquid quark-gluon plasma produced in heavy ion collisions, much as Rutherford found nuclei within atoms or Friedman, Kendall and Taylor found quarks within nucleons.en_US
dc.description.sponsorshipUnited States. Dept. of Energy (Cooperative Research Agreement DE-FG0205ER41360)en_US
dc.description.sponsorshipMiller Institute for Basic Research in Scienceen_US
dc.language.isoen_US
dc.publisherSpringer-Verlagen_US
dc.relation.isversionofhttp://dx.doi.org/10.1007/JHEP05(2013)031en_US
dc.rightsCreative Commons Attributionen_US
dc.rights.urihttp://creativecommons.org/en_US
dc.sourceSpringeren_US
dc.titleMomentum broadening in weakly coupled quark-gluon plasma (with a view to finding the quasiparticles within liquid quark-gluon plasma)en_US
dc.typeArticleen_US
dc.identifier.citationD’Eramo, Francesco, Mindaugas Lekaveckas, Hong Liu, and Krishna Rajagopal. “Momentum Broadening in Weakly Coupled Quark-Gluon Plasma (with a View to Finding the Quasiparticles Within Liquid Quark-Gluon Plasma).” J. High Energ. Phys. 2013, no. 5 (May 2013).en_US
dc.contributor.departmentMassachusetts Institute of Technology. Center for Theoretical Physicsen_US
dc.contributor.departmentMassachusetts Institute of Technology. Department of Physicsen_US
dc.contributor.mitauthorD'Eramo, Francescoen_US
dc.contributor.mitauthorLekaveckas, Mindaugasen_US
dc.contributor.mitauthorLiu, Hongen_US
dc.contributor.mitauthorRajagopal, Krishnaen_US
dc.relation.journalJournal of High Energy Physicsen_US
dc.eprint.versionFinal published versionen_US
dc.type.urihttp://purl.org/eprint/type/JournalArticleen_US
eprint.statushttp://purl.org/eprint/status/PeerRevieweden_US
dspace.orderedauthorsD’Eramo, Francesco; Lekaveckas, Mindaugas; Liu, Hong; Rajagopal, Krishnaen_US
dc.identifier.orcidhttps://orcid.org/0000-0002-4911-3183
dc.identifier.orcidhttps://orcid.org/0000-0001-5812-8718
mit.licensePUBLISHER_CCen_US
mit.metadata.statusComplete


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