English

B-meson Nuclear Modification Factor and $\mathbf{v_2(p_T)}$ in a Strongly Coupled Plasma in $\mathbf{Pb+Pb}$ Collisions at $\mathbf{\sqrt{s_{NN}}=2.76}$ TeV and $\mathbf{\sqrt{s_{NN}}=5.5}$ TeV

High Energy Physics - Phenomenology 2020-11-17 v1

Abstract

We present predictions for the suppression of B-mesons using AdS/CFT techniques assuming a strongly coupled quark-gluon plasma at sNN=2.76\sqrt{s_{NN}}=2.76 TeV for central collisions and sNN=5.5\sqrt{s_{NN}}=5.5 TeV for various centrality classes. We provide estimates of the systematic theoretical uncertainties due to 1) the mapping of QCD parameters to those in N=4\mathcal N = 4 SYM and 2) the exact form of the momentum dependence of the diffusion coefficient predicted by AdS/CFT. We show that coupling energy loss to flow increases v2v_2 substantially out to surprisingly large momenta, on the order of 25\sim 25 GeV/c, thus pointing to a possible resolution of the RAAR_{AA} and v2v_2 puzzle for light hadrons.

Keywords

Cite

@article{arxiv.2011.07617,
  title  = {B-meson Nuclear Modification Factor and $\mathbf{v_2(p_T)}$ in a Strongly Coupled Plasma in $\mathbf{Pb+Pb}$ Collisions at $\mathbf{\sqrt{s_{NN}}=2.76}$ TeV and $\mathbf{\sqrt{s_{NN}}=5.5}$ TeV},
  author = {B. A. Ngwenya and W. A. Horowitz},
  journal= {arXiv preprint arXiv:2011.07617},
  year   = {2020}
}

Comments

11 pages, 14 figures