dc.contributor.author | D'Eramo, Francesco | |
dc.contributor.author | Lekaveckas, Mindaugas | |
dc.contributor.author | Liu, Hong | |
dc.contributor.author | Rajagopal, Krishna | |
dc.date.accessioned | 2014-07-30T12:20:53Z | |
dc.date.available | 2014-07-30T12:20:53Z | |
dc.date.issued | 2013-05 | |
dc.date.submitted | 2012-12 | |
dc.identifier.issn | 1029-8479 | |
dc.identifier.issn | 1126-6708 | |
dc.identifier.uri | http://hdl.handle.net/1721.1/88518 | |
dc.description.abstract | We 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.sponsorship | United States. Dept. of Energy (Cooperative Research Agreement DE-FG0205ER41360) | en_US |
dc.description.sponsorship | Miller Institute for Basic Research in Science | en_US |
dc.language.iso | en_US | |
dc.publisher | Springer-Verlag | en_US |
dc.relation.isversionof | http://dx.doi.org/10.1007/JHEP05(2013)031 | en_US |
dc.rights | Creative Commons Attribution | en_US |
dc.rights.uri | http://creativecommons.org/ | en_US |
dc.source | Springer | en_US |
dc.title | Momentum broadening in weakly coupled quark-gluon plasma (with a view to finding the quasiparticles within liquid quark-gluon plasma) | en_US |
dc.type | Article | en_US |
dc.identifier.citation | D’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.department | Massachusetts Institute of Technology. Center for Theoretical Physics | en_US |
dc.contributor.department | Massachusetts Institute of Technology. Department of Physics | en_US |
dc.contributor.mitauthor | D'Eramo, Francesco | en_US |
dc.contributor.mitauthor | Lekaveckas, Mindaugas | en_US |
dc.contributor.mitauthor | Liu, Hong | en_US |
dc.contributor.mitauthor | Rajagopal, Krishna | en_US |
dc.relation.journal | Journal of High Energy Physics | en_US |
dc.eprint.version | Final published version | en_US |
dc.type.uri | http://purl.org/eprint/type/JournalArticle | en_US |
eprint.status | http://purl.org/eprint/status/PeerReviewed | en_US |
dspace.orderedauthors | D’Eramo, Francesco; Lekaveckas, Mindaugas; Liu, Hong; Rajagopal, Krishna | en_US |
dc.identifier.orcid | https://orcid.org/0000-0002-4911-3183 | |
dc.identifier.orcid | https://orcid.org/0000-0001-5812-8718 | |
mit.license | PUBLISHER_CC | en_US |
mit.metadata.status | Complete | |