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Wuppertal 2015 – wissenschaftliches Programm

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T: Fachverband Teilchenphysik

T 54: Neutrinoastronomie I

T 54.4: Vortrag

Dienstag, 10. März 2015, 17:30–17:45, I.12.02 (HS 31)

A modified likelihood-method to search for point-sources in the diffuse astrophysical neutrino-flux in IceCube — •René Reimann, Christian Haack, Martin Leuermann, Leif Rädel, Sebastian Schoenen, Michael Schimp, and Christopher Wiebusch for the IceCube collaboration — III. Physikalisches Institut, RWTH Aachen

IceCube, a cubic-kilometer sized neutrino detector at the geographical South Pole, has recently measured a flux of high-energy astrophysical neutrinos. Although this flux has now been observed in multiple analyses, no point sources or source classes could be identified yet. Standard point source searches test many points in the sky for a point source of astrophysical neutrinos individually and therefore produce many trials. Our approach is to additionally use the measured diffuse spectrum to constrain the number of possible point sources and their properties. Initial studies of the method performance are shown.

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