Jul 6 – 13, 2022
Bologna, Italy
Europe/Rome timezone

Study of charm quark diffusion with jet-$D^0$ angular correlation in heavy ion collisions with CMS

Jul 7, 2022, 2:45 PM
Room 3 (Verde)

Room 3 (Verde)

Parallel Talk Heavy Ions Heavy Ions


Jing Wang


We report the first measurement of the azimuthal angular correlation between jets and $D^0$ mesons in pp and PbPb collisions. The measurement is performed using jets with $p_\mathrm{T}> 60$ GeV and $D^0$ mesons with $p_\mathrm{T} > 4$ GeV. The azimuthal angle difference between jets and $D^0$ mesons($0<\Delta\phi<\pi$) is sensitive to medium-induced charm diffusion, charm quark energy loss, and possible rare large-angle scattering between charm and the quasi-particles in QGP. We also report the radial profile of the charm quark with respect to the jet axis measured differentially in centrality and $D^0 p_\mathrm{T}$. This analysis is performed with high-statistics Run 2 data collected by the CMS detector.

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