Corrections and Uncertainties in Energy Loss Model Predictions

9th International Workshop on High-pT Physics at LHC

Horowitz, W.A.^1

Department of Physics, University of Cape Town, Private Bag X3, Rondebosch

7701, South Africa^1

关键词: Leading orders;    Loss model;    Next-to-leading order corrections;    Pt particle;    Quantitative comparison;    Strong coupling;    Weak couplings;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/589/1/012011/pdf
DOI  :  10.1088/1742-6596/589/1/012011

来源: IOP

【 摘 要 】

Energy loss models based on leading order strong-coupling derivations oversuppress high-pT particles compared to RHIC and LHC data whereas energy loss models based on leading order weak-coupling derivations robustly describe qualitatively known RHIC and LHC results. Currently there are large theoretical uncertainties in both calculations and next-to-leading order corrections will be necessary for 1) a definitive falsification of the strong-coupling calculations and 2) a quantitative comparison of pQCD-based calculations to data.