Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 33: Schwerionenkollisionen und QCD Phasen
HK 33.7: Vortrag
Mittwoch, 19. März 2014, 18:15–18:30, HZ 6
Low-mass di-electron reconstruction at the CBM experiment at FAIR — •Elena Lebedeva1, Claudia Höhne1, and Tetyana Galatyuk2 for the CBM collaboration — 1Justus-Liebig-Universität Gießen, Gießen, Germany — 2Technische Universität Darmstadt, Darmstadt, Germany
The Compressed Baryonic Matter (CBM) experiment at the future FAIR facility will investigate high baryon density matter at moderate temperatures in A+A collisions from 4-35 AGeV. One of the key observables of the CBM physics program is electromagnetic radiation from the early fireball carrying undistorted information on its conditions to the detector. This includes detailed investigations of low-mass vector mesons in their di-electron channel. In the presented simulation studies we investigate the feasibility to effectively reduce the combinatorial background with the currently foreseen experimental setup, which does not provide electron identification in front of the magnetic field. The strategy of electron identification and background suppression will be discussed. Simulation results with most-up-to date realistic detector description as well as detailed background studies will be presented.