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Dresden 2013 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 107: Suche nach Dunkler Materie 3

T 107.5: Vortrag

Dienstag, 5. März 2013, 17:45–18:00, HSZ-103

Background investigations for the observation of Coherent Neutrino Nucleus Scattering — •Achim Gütlein, Dominikus Hellgartner, Jean-Côme Lanfranchi, Randolph Möllenberg, Andrea Münster, Lothar Oberauer, Walter Potzel, Sabine Roth, Daniel Simon, Stefan Scholl, Moritz von Sivers, Raimund Strauß, Stefan Wawoczny, Michael Willers, Marc Wüstrich, and Andreas Zöller — Technische Universität München, Physik Department, E15

Coherent Neutrino Nucleus Scattering (CNNS) is a neutral current process where a neutrino scatters off a target nucleus via the exchange of a virtual Z0 boson. For low transferred momenta the wave length of the Z0 is comparable to the diameter of the nucleus. Thus, the neutrino scatters coherently off all nucleons leading to an enhanced cross section.

For the first observation of CNNS a strong neutrino source as well as a good background suppression is needed. The expected neutrino count rates for an experiment in the vincinity of a nuclear power reactor will be presented. Also the results of several background simulations and an estimation of the observation potential for an experiment using low-temperature detectors is discussed.

This work has been supported by funds of the Deutsche Forschungsgemeinschaft DFG (Transregio 27: Neutrinos and Beyond), the Excellence Cluster (Origin and Structure of the Universe) and the Maier-Leibnitz-Laboratorium (Garching).

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