Supergravity and the jet quenching parameter in the presence of R-charge densities | Zendy

Spyros D. Avramis | Zendy; Kostandinos Sfetsos | Zendy

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Supergravity and the jet quenching parameter in the presence of R-charge densities

Author(s) -

Spyros D. Avramis,

Kostandinos Sfetsos

Publication year - 2007

Publication title -

journal of high energy physics

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.998

H-Index - 261

eISSN - 1126-6708

pISSN - 1029-8479

DOI - 10.1088/1126-6708/2007/01/065

Subject(s) - supergravity , jet quenching , physics , charge (physics) , jet (fluid) , quenching (fluorescence) , monotonic function , function (biology) , mathematical physics , quantum electrodynamics , particle physics , quantum mechanics , thermodynamics , supersymmetry , mathematics , mathematical analysis , quark–gluon plasma , quantum chromodynamics , evolutionary biology , biology , fluorescence

Following a recent proposal, we employ the AdS/CFT correspondence to computethe jet quenching parameter for N=4 Yang-Mills theory at nonzero R-chargedensities. Using as dual supergravity backgrounds non-extremal rotating branes,we find that the presence of the R-charges generically enhances the jetquenching phenomenon. However, at fixed temperature, this enhancement might ormight not be a monotonically increasing function of the R-charge density anddepends on the number of independent angular momenta describing the solution.We perform our analysis for the canonical as well as for the grand canonicalensemble which give qualitatively similar results.Comment: 18 pages, 2 figures; v3: clarifying comments added, references added, version to appear in JHE

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