Heavy flavour energy loss from AdS/CFT: A novel diffusion coefficient

2018/02/06 by Robert Hambrock, William Alexander Horowitz
Physics and Astronomy · #hep-ph

paper · pdf · doi:10.1051/epjconf/201817118002

published as EPJ Web of Conferences 171, 18002 (2018) · 4 pages, 2 figures. Proceedings for Strangeness in Quark Matter 2017. arXiv admin note: text overlap with arXiv:1703.05845

arxiv created 2018/02/06 · arxiv updated 2018/02/08

Abstract

Two AdS/CFT based energy loss models are used to compute the suppression and azimuthal correlations of heavy quarks in heavy ion collisions. The model with a velocity independent diffusion coefficient is in good agreement with B and D meson data up to high p_T. The partonic azimuthal correlations we calculate exhibit an order of magnitude difference in low momentum correlations to pQCD calculations [arXiv:1305.3823]. We thus propose heavy flavour momentum correlations as a distinguishing observable of weakly- and strongly-coupled energy loss mechanisms.

Citations

• Azimuthal correlations of heavy quarks in Pb + Pb collisions ats=2.76TeV at the CERN Large Hadron Collider
• AdS/CFT predictions for azimuthal and momentum correlations of bb pairs in heavy ion collisions