Speaker
Dr
Sa WANG
(SCNU)
Description
Angular correlations between heavy quark (HQ) and its tagged jet are potentially new tools to gain insight into the in-medium partonic interactions in relativistic heavy-ion collisions. In this talk, our recent theoretical studies on the radial profiles of B mesons in jets in Pb+Pb collisions at the LHC will be presented. The initial production of bottom quark tagged jet in p+p is computed by SHERPA which matches the next-to-leading order matrix elements with contributions of parton shower, whereas the massive quark traversing the QGP described by a Monte Carlo model SHELL which can simultaneously simulate light and heavy flavor in-medium energy loss within the framework of Langevin evolution. In p+p collisions, we find that at lower $\rm p_T^Q$ the radial profiles of heavy flavors in jets are sensitive to the heavy quark mass. In 0−10% Pb+Pb collisions at $\sqrt{s_{NN}}=5.02$ TeV, we observe an inverse modification pattern of the B mesons radial profiles in jets at $\rm 4 20$ GeV region naturally has a narrower initial distribution and consequently leads to a narrower modification pattern of radial profile; however the diffusion nature of the heavy flavor in-medium interactions will give rise to a broader modification pattern of radial profile. These two effects consequently compete and offset with each other, and the b quarks in jets benefit more from the former and suffers less diffusion effect compared to that of c quarks in jets. These findings can be tested in the future experimental measurements at the LHC to gain better understanding of the mass effect of jet quenching.
Primary author
Dr
Sa WANG
(SCNU)
Co-authors
Prof.
Ben-Wei Zhang
(Central China Normal University)
Enke Wang
(South China Normal University)
Dr
Wei Dai
(China University of Geosciences)
