Small Shear Viscosity of a Quark-Gluon Plasma Implies Strong Jet Quenching

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dc.creatorMajumder, A.
dc.creatorMüller, B.
dc.creatorWang, X. -N.
dc.date2007-03-07
dc.date2007-06-14
dc.date.accessioned2026-07-07T11:22:46Z
dc.date.available2026-07-07T11:22:46Z
dc.descriptionWe derive an expression relating the transport parameter $\hat{q}$ and the shear viscosity $η$ of a weakly coupled quark-gluon plasma. A deviation from this relation can be regarded as a quantitative measure of ``strong coupling'' of the medium. The ratio $T^3/\hat{q}$, where $T$ is the temperature, is a more broadly valid measure of the coupling strength of the medium than $η/s$, where $s$ denotes the entropy density. Different estimates of $\hat{q}$ derived from existing RHIC data are shown to imply radically different structures of the produced matter.
dc.identifierhttps://arxiv.org/abs/hep-ph/0703082
dc.identifierhttp://arxiv.org/abs/hep-ph/0703082
dc.identifierPhys.Rev.Lett.99:192301,2007
dc.identifierdoi:10.1103/PhysRevLett.99.192301
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/194685
dc.subjectHigh Energy Physics - Phenomenology
dc.titleSmall Shear Viscosity of a Quark-Gluon Plasma Implies Strong Jet Quenching
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