Heavy Quark Energy Loss and Bulk Physics

14th International Conference on Strangeness in Quark Matter

Horowitz, W.A.^1

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

关键词: AdS/CFT;    Heavy quark energy loss;    Higher order effects;    Leading orders;    Quark-gluon plasma;    Theoretical calculations;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/509/1/012046/pdf
DOI  :  10.1088/1742-6596/509/1/012046

来源: IOP

【 摘 要 】

We show that the low-pTdata and high-pTdata from RHIC and LHC give a contradictory picture of the relevant dynamics of a quark-gluon plasma. While the bulk observables imply a strongly coupled fluid best described by AdS/CFT the rare probes imply a weakly coupled gas best described using thermal pQCD. These conclusions are based on leading order theoretical calculations, and we speculate that more sophisticated calculations that include higher order effects might provide a resolution to the current puzzle.