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Bochum 2018 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 39: Heavy Ion Collisions and QCD Phases VI

HK 39.5: Vortrag

Mittwoch, 28. Februar 2018, 17:45–18:00, HZO 60

Measurement of Angular Correlations between Heavy-Flavour Electrons and Charged Particles in pp Collisions at s = 13 TeV with ALICE — •Florian Herrmann for the ALICE collaboration — WWU Münster, Germany

Heavy flavour quarks (charm and beauty) are of special interest for the study of the Quark-Gluon Plasma as they are predominantly produced in the initial hard-scattering processes and participate in the entire evolution of the system. Moreover, heavy flavour productions is well under control of perturbative QCD. Thus, heavy flavours are an excellent probe to study pQCD in small systems as well as parton in medium energy loss and transport mechanisms in nuclear collisions by measuring, for instance, the spectra, angular correlations or the nuclear modification factor RAA. Experimentally, heavy flavours are often investigated using measurements of electrons from heavy-flavour hadron decays. These electrons can be separated statistically from the background and their angular correlations with other heavy flavour electrons or with charged particles can be studied. In this talk, we will present a current approach to measure two-particle correlations of heavy flavour electrons with charged particles biased to higher pT (>2 GeV/c) or with the leading particle in pp collisions at √s=13 TeV with the ALICE experiment. Monte Carlo calculations provide promising predictions to disentangle charm and beauty contributions and different heavy-quark production mechanisms in these correlation measurements. – Supported by BMBF and DFG GRK2149.

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