Josef Pochodzalla

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Future experiments on hypernuclei γ-spectroscopy at FINUDA@DAFNE and PANDA@FAIR require the operation of germanium detectors in high magnetic fields (B ≈ 1 T). The performance of these detectors in such an environment has not been well investigated. In particular, one might expect three problems to arise: (i) breakdown of FETs in the preamplifiers, (ii)(More)
The HypHI project aims to study hypernuclei by means of collisions of stable heavy ion and rare-isotope beams on stable target materials [1, 2]. As the first step (Phase 0), the feasibility of precise hypernuclear spectroscopy with heavy ion beams will be demonstrated with 6 Li beam at 2 A GeV impinged on a 12 C target by identifying 3 Λ H, 4 Λ H and 5 Λ He(More)
theta(degree) 0 20 40 60 80 100 120 140 160 180 0 200 400 600 800 1000 1200 protons kaons pions neutrons Figure 1: Distribution of produced particles from background reactions. The Germanium detectors will be affected mainly by particles emitted at backward axial angle For the high resolution spectroscopy of excited hyper-nuclear states a position sensitive(More)
The main idea of the HypHI project is to perform precise hypernuclear spectroscopy with stable and unstable heavy ion beam at GSI and FAIR[1]. The HypHI collaboration plans the first experiment Phase 0 in 2009 to investigate the feasibility of hypernuclear spectroscopy with heavy ion beams. In the Phase 0 experiment, three sets of Scintillating Fiber(More)
0 100 200 300 400 0 100 200 300 400 500 Counts Σ ADC B (cnts) Gaussian fit maximum: 418 counts maximum at: 105 cnts FWHM: 66 cnts Figure 1: Distributions of the pulse height sum over neighbouring channels of one detection plane. From the Gaus-sian fit to the data a relative energy resolution ∆E/E ∼ 60 % for the protons in the cocktail beam was derived. The(More)