Mainz 2022 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 12: Heavy-Ion Collisions and QCD Phases III

HK 12.4: Talk

Monday, March 28, 2022, 17:00–17:15, HK-H1

Measurement of charm production cross-section via electron-muon coincidence — •Victor Feuillard for the ALICE collaboration — Physikalische Institut, Heidelberg, Germany

The measurement of the production of heavy-flavor hadrons, meaning hadrons with charm or beauty quarks, in proton-proton collisions provides a test of quantum chromodynamics (QCD), the theory of the strong interaction. Indeed, in hadronic collisions, heavy quarks are almost exclusively produced through initial hard partonic scattering processes because of their large masses.

One available method to investigate heavy-flavor production is the measurement of the contribution of semi-leptonic decays of heavy-flavor hadrons to the dilpeton spectra. In particular, it is possible to measure the production of heavy mesons in the electron-muon spectrum.

In this talk, we will present the measurement of the charm production cross section in pp collisions at √s = 13 TeV in ALICE using electron-muon coincidence.