D0-tagged jets in heavy-ion collisions with ALICE at the LHC

Jun 2, 2020, 7:30 AM
1h 20m
Online

Online

Poster Heavy Flavor and Quarkonia Poster session

Speaker

Antonio Carlos Oliveira Da Silva (University of Tennessee - Knoxville)

Description

Charm quarks are ideal probes of the Quark-Gluon Plasma (QGP). Due to their large mass they are produced in the early stages of ultra-relativistic heavy-ion collisions in hard-scattering processes.

D$^{0}$-tagged jets are valuable tools to investigate the charm interaction with the QGP. Furthermore, charmed jets can provide information to study the mass-dependent energy loss by analysing the modification of their yield in Pb$-$Pb collisions with respect to pp collisions as a function of the jet transverse momentum.

D$^{0}$ mesons are reconstructed through their hadronic decay channels D$^{0} \to K\pi$. The large combinatorial background is rejected by applying topological selections exploiting the relatively large lifetime of D$^{0}$ mesons and the excellent particle-identification capabilities of the ALICE detector. The signal is extracted using an invariant mass analysis. Charged-track jets are reconstructed with anti-$k_{\rm T}$ algorithm. The ALICE detectors allow us to measure D$^{0}$-tagged jets down to low $p_{\rm T}$, where the probes are more sensitive to the effects of the hot medium. In this contribution, ALICE measurements of the production and fragmentation of D$^{0}$-tagged charged jets in Pb$-$Pb collisions at $\sqrt{s_{\rm NN}}$ = 5.02 TeV will be presented.

Track Heavy Flavor and Quarkonia
Collaboration (if applicable) ALICE
Contribution type Poster

Primary author

Antonio Carlos Oliveira Da Silva (University of Tennessee - Knoxville)

Presentation materials