Dresden 2013 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 53: Poster - Instrumentation II
HK 53.5: Poster
Wednesday, March 6, 2013, 16:45–19:00, HSZ 3.OG
Optimization of the target system for the hypernuclear experiment at PANDA — •Sebastian Bleser1, Felice Iazzi2, Josef Pochodzalla3, Kai Rittgen3, Cihan Sahin3, Alicia Sanchez Lorente1, and Marcell Steinen1 — 1Helmholtz-Institut Mainz — 2Politecnico di Torino and INFN, Sez. di Torino, Italy — 3Institut für Kernphysik, Johannes Gutenberg-Universität, Mainz
Gamma spectroscopy of double Λ hypernuclei will be one of the main topics addressed by the PANDA experiment at the planned FAIR-Facility at Darmstadt, Germany. For this project a dedicated hypernuclear detector setup will be installed. In addition to the general purpose of the PANDA detector it consists of a primary nuclear target for the production of Ξ−+ Ξ pairs, a secondary active target for the formation of hypernuclei and the identification of associated decay products as well as a germanium detector array to perform γ spectroscopy.
In order to stop the Ξ− particles and track pions from the decay of the produced hypernuclei, the secondary target is composed as a compact structure of silicon microstrip detectors and absorber material.
Results of the current hardware development will be presented on the poster including stability tests for the primary target chamber, the readout of silicon microstrip detectors with ultra-thin flexible cables to fan out the readout electronics and design studies of support structures for the whole detector setup. On the simulation side a compromise between the stopping of Ξ− hyperons and the reconstruction accuracy of weak decay pions will be discussed.