Quenching and tomography from the RHIC to the LHC

被引：47

作者：

Horowitz, W. A. ^{[1
]}

Gyulassy, M. ^{[2
]}

机构：

[1] Univ Cape Town, Dept Phys, ZA-7701 Rondebosch, South Africa

[2] Columbia Univ, Dept Phys, New York, NY 10027 USA

来源：

JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS | 2011年 / 38卷 / 12期

关键词：

D O I：

10.1088/0954-3899/38/12/124114

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

We compare fully perturbative and fully nonperturbative pictures of high-p(T) energy loss calculations to the first results from the LHC. While oversuppressed compared to published ALICE data, parameter-free pQCD predictions based on the WHDG energy loss model constrained to RHIC data simultaneously describe well the preliminary CMS hadron suppression, ATLAS charged hadron nu(2), and ALICE D meson suppression; we also provide for future reference WHDG predictions for B meson R-AA. However, energy loss calculations based on AdS/CFT also qualitatively describe well the RHIC pion and non-photonic electron suppression and LHC charged hadron suppression. We propose the double-ratio of charm to bottom quark R-AA as a qualitative distinguisher between these two energy loss pictures.

引用

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