Performance study of the anisotropic flow and reaction plane reconstruction in the CBM experiment

FAIRNESS 2016

Mikhaylov, V.^1,2,3 ; Kugler, A.^1 ; Kushpil, V.^1 ; Selyuzhenkov, I.^4 ; Tlustý, P.^1

Nuclear Physics Institute, Czech Academy of Sciences, e, Czech Republic^1

Czech Technical University in Prague, Faculty of Nuclear Sciences and Physical Engineering, Prague, Czech Republic^2

National Research Tomsk Polytechnic University, Department of Electronics and Automation of Nuclear Plants, Tomsk, Russia^3

GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany^4

关键词: Anisotropic flows;    Au+Au collisions;    Detector geometry;    Energy distributions;    Event generators;    Heavy ion collision;    Performance study;    Reaction plane;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/742/1/012023/pdf
DOI  :  10.1088/1742-6596/742/1/012023

来源: IOP

【 摘 要 】

The Projectile Spectator Detector (PSD) is a subsystem of the CBM experiment at the future FAIR facility designed to determine centrality and reaction plane orientation in the heavy-ion collisions. It will be done by measurement of the energy distribution of the heavy nucleons and nuclei fragments emitted close to the beam rapidity in forward direction. For the anticipated beam energies of FAIR SIS100 and SIS300 accelerators, different event generators (iQMD, UrQMD, DCM-QGSM, LA-QGSM and HSD) were used for the study of directed and elliptic proton flow in Au+Au collisions. Produced particles were transported with the GEANT4 Monte-Carlo using the CBM detector geometry. Performance of the reaction plane determination is shown for different PSD setups to demonstrate effects of the detector granularity and magnetic field. Simulation results are compared with the FOPI, AGS E877, E895 and STAR experimental data.