Publications database

The PANDA experiment is one of the main projects foreseen at the Facility for Antiproton and Ion Research (FAIR). Its task is to measure the products of the reactions between an antiproton beam, with a beam momentum between 1.5 GeV/c and 15 GeV/c, and a proton or nucleon fixed target. [...]

The envisaged physics program of the PANDA (antiProton ANnihilation at Darmstadt) experiment at the future Facility for Antiproton and Ion Research (FAIR) requires excellent particle identification over the full solid angle. The Endcap Disc DIRC (EDD) will cover forward polar angles between 5 and 22° and is one of three dedicated subdetectors for the identification of charged hadrons and the separation of pions and kaons in particular. [...]

The PANDA experiment is one of the main scientific pillars of the future Facility for Antiproton and Ion Research, currently under construction in Darmstadt, Germany. It will investigate hadron physics measuring antipron-proton annihilation reactions. [...]

At sufficiently high temperatures and baryon densities, nuclear matter is expected to undergo a transition into the Quark-Gluon-Plasma (QGP) consisting of deconfined quarks and gluons and accompanied by chiral symmetry restoration. Signals of these two fundamental characteristics of Quantum-Chromo-Dynamics (QCD) can be studied in ultra-relativistic heavy-ion collisions producing a relatively large volume of high energy and nucleon densities as existent in the early universe. [...]

In dieser Arbeit wurden thermodynamische Eigenschaften eines chiralen Quark Meson Modelles untersucht. Das chirale Quark Meson Model beschreibt die starke Wechselwirkung über den Austausch von Mesonen und zudem die thermische und dichteabhängige Entwicklung der Quarkmassen im Medium über die chirale Symmetrie.Im SU(2) Model wurde zunächst in mean field approximation gearbeitet, um im Anschluss den divergenten Vakuumterm mit einzubeziehen. [...]

QCD matter is expected to exist in different phases, when heated to high temperatures and getting highly compressed. Each phase could be characterized by distinct properties. [...]

Im Rahmen dieser Arbeit wurden neue Ansätze zur Optimierung eines Alvarez Beschleunigers für Schwerionen untersucht. Dabei dient die Alvarez-Sektion des GSI UNILAC als Untersuchungsfeld, da für den Injektionsbetrieb für FAIR eine Erneuerung dieser Sektion erforderlich ist. [...]

In April and May 2012 data on Au+Au collisions at beam energies of Ekin = 1.23A GeV were recorded with the High Acceptance Di-Electron Spectrometer, which is located at the GSI Helmholtz Center for Heavy Ion Research in Darmstadt, Germany. At this beam energy all hadrons containing strangeness are produced below their elementary production threshold. [...]

In this doctoral thesis the transformation from relativistic hydrodynamics to transport and vice versa is studied. Approximations made by hybrid (hydrodynamics + transport) simulations of relativistic heavy ion collisions are discussed and their reliability is assessed at intermediate collision energies [...]

The topic of this thesis is the investigation of scalar tetraquark candidates from lattice QCD. It is motivated by a previous study originating in the twisted mass collaboration. [...]