Dilepton spectroscopy with HADES [Elektronische Ressource] / von Jaroslav Bielčík

Dilepton spectroscopy with HADESVom Fachbereich Physikder Technischen Universitat¨ Darmstadtzur Erlangung des Gradeseines Doktors der Naturwissenschaften(Dr. rer. nat.)genehmigte Dissertation vonJaroslav Bielcˇ´ıkaus Kokava nad RimavicouDarmstadt 2004D17iiReferent: Prof. Dr. P. Braun-MunzingerKoreferent: Prof. Dr. W. Norenber¨ gTag der Einreichung: 23. January 2004Tag der Prufung:¨ 29. April 2004Declaration of OriginalityThis doctoral thesis contains the results of my research carried out in the GSI in Darm-stadt between January 1999 and December 2003.Excluding introductory parts the research described in this thesis is original unlesswhere an explicit reference is made to work of others. I further state that no part of thisthesis or anything substantially the same has been submitted for any qualification otherthan the degree Dr.rer.nat. at the Technical University in Darmstadt.3.8.2004 Jaroslav Bielc´ˇıkAbstractThe dilepton spectrometer HADES (High Acceptance Dielectron Spectrometer) has started re-cently its operation at the SIS accelerator in Gesellschaft fur¨ Schwerionenforschung (GSI), Darm-stadt, and several commissioning beamtimes have been performed. In this work, the analysis of12data measured in November 2001, where collisions of C projectiles on a carbon target at a beamenergy of 2AGeV have been studied, is presented.