Bonn 2020 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 15: Heavy-Ion Collisions and QCD Phases III
HK 15.3: Talk
Tuesday, March 31, 2020, 17:45–18:00, J-HS F
Particle reconstruction with the KF package to study charmed baryons — •Carolina Reetz for the ALICE collaboration — Heidelberg University
The study of charmed baryon production in proton-proton (pp) collisions is a crucial step on the way of understanding charm hadronisation processes in the presence of a Quark-Gluon Plasma (QGP) state, which is expected to be created in heavy-ion collisions.
The hadronic decay of the Ξc0 baryon is the subject of the studies presented in this contribution. The complex decay topology includes the decay hyperons Ξ and Λ: its reconstruction is performed with the help of the KF Particle package, developed in the context of the CBM experiment. The package supports the reconstruction of full particle decay chains, exploiting the use of various constrained fits and including the complete treatment of tracking and vertexing uncertainties. These features are of crucial importance in the search for rare signals.
Different selection criteria related to the reconstruction of the Λ and Ξ decays are investigated. This study provides the validation of the KF Particle package for the reconstruction of decay topologies in ALICE and its implementation in the ALICE software framework.