26.–31. März 2023
Aschaffenburg
Europe/Berlin Zeitzone

D and B meson Suppression and Azimuthal Anisotropy in a Strongly Coupled Plasma at sNN=5.5 TeV

29.03.2023, 15:00
20m
Cranach-Saal (Stadthalle)

Cranach-Saal

Stadthalle

Talk Heavy flavor and quarkonia Parallel: Heavy Flavours & Quarkonia

Sprecher

Blessed Ngwenya (University of Cape Town)

Beschreibung

We present predictions for the suppression of D and B-mesons at s=5.5 TeV at the LHC in Pb+Pb collisions. We assume that the QGP is strongly coupled, and show the centrality and momentum dependence of the nuclear modification factor at midrapidity. We quantify the systematic theoretical uncertainties associated with the mapping of parameters in N=4 SYM theory to QCD, as well as the momentum dependence of the diffusion coefficient in AdS/CFT. We also present results of the corresponding v2(pT) for D and B-mesons describing this azimuthal anisotropy for central, semi-central and peripheral collisions. We show that the suppression and azimuthal anisotropy predictions are qualitatively consistent with LHC measurements. In addition, we show that coupling energy loss to flow increases v2 substantially out to surprisingly large momenta, on the order of 25 GeV/c, thus pointing to a possible resolution of the RAA and v2 puzzle at intermediate pT for light hadrons.

Affiliation

University of Cape Town

Experiment/Theory Theory/Phenomenology

Hauptautor

Blessed Ngwenya (University of Cape Town)

Co-Autor

Prof. Will Horowitz (University of Cape Town)

Präsentationsmaterialien