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GERDA – Meeting, Nov.9-11, 2005 GERDA Meeting Eberhard Karls Universität Tübingen GERDA Meeting Eberhard Karls Universität Tübingen GERDA Meeting 1477 university funded by ‘Eberhard im Bart’ Eberhard Karls Universität Tübingen GERDA Meeting 1478 ‘Alte Burse’ first University Building 1805 first University Clinic in Germany Kepler, Hegel Schelling Hölderlin, Hauff, Mörike studied there Evangelisches Stift Eberhard Karls Universität Tübingen GERDA Meeting 1863 first faculty for natural science in Germany Physics Faculty ‘Old Physics’ buidling at Tübingen • Astronomy • Applied Physics • Low Temperature • Quantum Optics • Theoretical Physics • Nuclear and Particle Physics Nuclear and Particle Physics Projects GERDA Meeting Nucleon-Nucleon Scattering • meson- and baryon-resonances WASA , COSY-TOF Electron, Photon scattering - Nucleon structure • Gerasimov Drell Hearn sum rule • neutron form factors MAMI Neutrino physics • neutrinoless double b decay: • neutrino oscillations – Q13: GERDA DOUBLE CHOOZ Astroparticle Physics • direct dark matter search: CRESST, EURECA Nuclear and Particle Physics Projects GERDA Meeting production of mesons-and baryon resonances and their decay, exotic resonances ( e.g. pentaquark ) • experiments at COSY / FZ Jülich • data analysis in Tübingen Nuclear and Particle Physics Projects GERDA Meeting form factor of the nucleon 3He(e,e´n) - polarized 3He as neutron target asymmetry a GEn / GMn Mainz • electron accelerator MAMI C (1.5 GeV) • neutron detectors (plastic szintillators ~ 100m2) • Crystal Ball, polarized photons Astroparticle Physics Projects GERDA Meeting CRESST Experiment search for particle candidates (supersymmetry) for Dark Matter in the universe elastic scattering on nuclei low temperature -calorimeters Gran Sasso Lab preparation next generation experiment EURECA (up to several 100kg) • European Collaboration • CRESST, EDELWEISS, CERN, … c Astroparticle Physics Projects GERDA Meeting Shielded cryostat study neutron background muon induced background set up of muon veto for CRESST shielding design for EURECA fission- and (α,n)- neutrons muon-induced neutrons PE neutron moderator Plastic scintill. m-veto Astroparticle Physics Projects GERDA Meeting Rosenau accelerator 3MV , p,d,…C, neutron beams • nuclear astrophysics • detector calibration nuclear recoil calibration at low energies MC simulations • nuclear recoil energies neutron background dark matter search experiments • fix GEANT 4 inelastic scattering problem Astroparticle Physics Projects GERDA Meeting scintillation at low temperatures => cryostat & spectrometer new ‘underground lab’ (12mwe) at Tübingen • large volume cryostat • base temp < 8mK • cooling power > 400mW • up to 8 channel SQUID system •… ready for CRESST & EURECA detector characterization + … GERDA GERDA Meeting background studies shielding design muon veto Eberhard Karls Universität Tübingen GERDA Meeting 1477 university funded by ‘Eberhard im Bart’ Attempto I dare to do it we are experimentalists: lets try to build the best experiment GERDA – Meeting, Nov.9-11, 2005 GERDA Meeting