2006/06/30 by Nestor Armesto, Néstor Armesto, Jose D. Edelstein +2 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph #hep-th #nucl-th
paper · pdf · doi:10.1088/1126-6708/2006/09/039
published as JHEP 0609 (2006) 039 · 15 pages, 4 figures; v3: Error in the expansions and figures of section 4 corrected, new comment and figure on the extension to finite quark mass, cites added and typos fixed
arxiv created 2006/07/03 · openalex publication_date 2006/09/15 · arxiv updated 2009/12/01 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Following the nonperturbative prescription for the jet quenching parameter recently proposed by Liu, Rajagopal and Wiedemann, we compute the first correction in the inverse `t Hooft coupling corresponding to string alpha' corrections in the dual background. We also consider the introduction of a chemical potential for the U(1)3 gauged R-symmetry. While the former mildly diminishes the jet quenching parameter -this suggesting a smooth interpolation between the strong coupling and perturbative results-, the latter generically increases its value. We comment on the extension of this setup to quarks of finite mass.