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T: Fachverband Teilchenphysik

T 86: Neutrinoastronomie 1

T 86.1: Group Report

Monday, March 4, 2013, 11:00–11:20, HSZ-E03

Latest results from the IceCube Neutrino Observatory — •Anne Schukraft — III. Physikalisches Institut, RWTH Aachen, D-52056 Aachen

The IceCube Neutrino Observatory is the world’s largest neutrino detector with a broad physics program covering the neutrino spectrum from several tens of GeV up to EeV energies. With its completion in 2010 it has reached its full sensitivity and analyses with unprecedented statistics are performed. One of the major research efforts is the search for extraterrestrial neutrino sources, which have not yet been discovered but would be a smoking gun for hadronic acceleration and could allow to identify the sources of high-energy cosmic rays. Such include steady galactic and extragalactic source candidates, e.g. Supernova Remnants and Active Galactic Nuclei, as well as transient phenomena like flaring objects and Gamma Ray Bursts. With its searches for diffuse neutrino fluxes in different energy ranges, IceCube is sensitive to fluxes of prompt atmospheric neutrinos, extragalactic neutrinos and cosmogenic neutrinos. In the low-energy range below 100 GeV, IceCube supplements classical neutrino oscillation experiments with its sensitivity to the deficit of atmospheric muon neutrinos at 25 GeV and searches for neutrinos from the annihilation of dark matter. The IceCube physics program is complemented by the surface array IceTop, which together with the detector part inside the ice serves for cosmic ray anisotropy, spectrum and composition measurements around the knee. The presentation summarizes ongoing IceCube physics analyses and recent results.

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