Is It Hard Yet? The Qualitative Agreement of pQCD Energy Loss with RHIC and LHC Data

International Workshop on Discovery Physics at the LHC 2012

Horowitz, W.A.^1

Department of Physics, University of Cape Town, Private Bag X3, Rondebosch 7701, South Africa^1

关键词: AdS/CFT;    Loss prediction;    QCD physics;    Quark-gluon plasma;    Strongly coupled plasma;    Weakly coupled plasmas;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/455/1/012052/pdf
DOI  :  10.1088/1742-6596/455/1/012052

来源: IOP

【 摘 要 】

Heavy flavor research is a vigorous and active topic in high-energy QCD physics. Comparing theoretical predictions to data as a function of flavor provides a unique opportunity to tease out properties of quark-gluon plasma. We explicitly demonstrate this utility with energy loss predictions based on the assumption of 1) a weakly-coupled plasma weakly coupled to a high-pTprobe using pQCD and 2) a strongly-coupled plasma strongly coupled to a high-pTprobe using AdS/CFT; we find that while the former enjoys broad qualitative agreement with data, it is difficult to reconcile the latter with experimental measurements.