D⁰-meson tagged jet-substructure measurement in pp collisions at $\sqrt{s} =$ 5.02 TeV with ALICE

Measurements of heavy-flavor hadron production play an important role in test of pQCD calculations and represent a critical component of studies of quark-gluon plasma (QGP) created in heavy-ion collisions. A more complete picture of the kinematics of these partons can be captured using heavy-flavour tagged jet. One of the interesting class of jet substructure observable are jet angularities which characterize the angular and momentum distribution of particles within jets.

$\rm D^{0}$-tagged-jet angularity studies were carried out in pp collisions, using charged jets with transverse momentum $p_{\rm T, jet} >$ 5 GeV/$c$, resolution parameter $R$ = 0.4 and with $\rm D^{0}$-mesons $p_{\rm T, D^{0}} >$ 2 GeV/$c$, with the ALICE experiment at the LHC. We compare these results with the results obtained for the inclusive, gluon-dominated, sample of jets. These measurements at relatively low jet momentum establish an interesting sensitivity to the heavy-flavor production mechanisms and will serve as an important baseline for comparison to Pb-Pb collisions, where jets are modified due to the QCD medium.