26.–31. März 2023
Aschaffenburg
Europe/Berlin Zeitzone

Study of charm quark hadronization via Λc+ and Ds+ production in the CMS experiment

28.03.2023, 18:15
2h 15m
Stadthalle (Aschaffenburg)

Stadthalle

Aschaffenburg

Schloßpl. 1 63739 Aschaffenburg
Gremium: HF-15
Poster Heavy flavor and quarkonia Poster Session

Sprecher

Soumik Chandra (PhD Student) Milan Stojanovic

Beschreibung

Measurements of the lightest open-charm baryon, Λc+, production can provide important information about the quark coalescence process of hadronization in the quark-gluon plasma (QGP). With strange quark yields being enhanced in the presence of the QGP medium, the production of Ds+ is expected to be enhanced in heavy ion collisions if recombination plays an important role in the hadronization process. The high-luminosity data sets collected by the CMS experiment in 2018 have been used to measure Λc+ production via Λc+p+Kπ+ in the pT range 3--30 GeV /c for pp collisions and 6--40 GeV /c for PbPb collisions in different centrality classes. The Ds+ production is measured via the decay channel Ds+ϕπ+K+Kπ+ in the pT range 2--40 GeV /c in pp collisions and 6--40 GeV /c in PbPb collisions using the data sets collected by CMS detector in 2015. Results of the differential cross section of Λc+ and Ds+, the ratios of Λc+ and Ds+ over D0 yields in pp and PbPb collisions will be presented along with the nuclear modification factors.

Affiliation

CMS

Experiment/Theory CMS

Hauptautoren

Präsentationsmaterialien

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