Apr 23 – 27, 2023
JMS Aster Plaza
Asia/Tokyo timezone

Longitudinal momentum fraction of heavy flavor meson in jets in high-energy nuclear collisions

Apr 25, 2023, 5:20 PM
Multi-Purpose Studio, 2nd Floor (JMS Aster Plaza)

Multi-Purpose Studio, 2nd Floor

JMS Aster Plaza

Poster Heavy quarks and quarkonia Poster Session


Yao Li


Heavy flavor jets are powerful tools to gain insight into the in-medium partonic energy loss mechanisms and the transport properties of the quark-gluon plasma (QGP) in high-energy nuclear collisions. In this work, we present the first theoretical study of the longitudinal momentum fraction $z_{||}$ carried by $\rm{D^0}$ meson in jets in Pb+Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV. The p+p baseline is provided by POWHEG+PYTHIA8 which matches the next-to-leading order hard processes with the parton shower. The in-medium evolution of heavy quark jets is employed by a Monte Carlo transport model which takes into account the collisional and radiative partonic energy loss in the expanding QGP. In A+A collisions, it is shown that the jet quenching effect would in general decrease the values of $z_{||}$. In addition, we predict visibly stronger nuclear modifications of $\rm{B^0}$-jet $z_{||}$ distributions compared to $\rm{D^0}$-jet within the same $p_{\rm T}$ windows.

Theory / experiment Theory

Primary authors

Ben-Wei Zhang (Central China Normal University) Sa Wang (South China Normal University) Yao Li

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