Bochum 2018 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 57: Heavy Ion Collisions and QCD Phases X

HK 57.2: Talk

Friday, March 2, 2018, 14:30–14:45, HZO 80

Performance for anisotropic flow measurements of the future CBM experiment at FAIR — •Viktor Klochkov^1,2 and Ilya Selyuzhenkov^1,3 for the CBM collaboration — ¹GSI Helmholtzzentrum für Schwerionenforschung, Planckstraße 1, Darmstadt, Germany — ²Goethe University Frankfurt, Max-von-Laue-Straße 1, Frankfurt am Main, Germany — ³National Research Nuclear University MEPhI (Moscow Engineering Physics Institute), Kashirskoe highway 31, Moscow, 115409, Russia

The Compressed Baryonic Matter experiment (CBM) at FAIR aims to study the area of the QCD phase diagram at high net baryon densities and moderate temperatures using collisions of heavy ions at center-of-mass energies of a few GeV per nucleon. Anisotropic transverse flow is among the key observables to study the properties of matter created in such collisions.

The CBM performance for anisotropic flow measurements is studied with Monte-Carlo simulations using gold ions at SIS-100 energies with lab momentum of 2-10 AGeV employing different heavy-ion event generators. Various combinations of CBM detector subsystems are used to investigate the possible systematic biases in flow measurement and to study effects of detector azimuthal non-uniformity. The resulting performance of CBM for flow measurements is demonstrated for different harmonics of identified charged hadron anisotropic flow as a function of rapidity and transverse momentum in different centrality classes.