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Mainz 2014 – scientific programme

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T: Fachverband Teilchenphysik

T 101: Hochenergie-Neutrinophysik 3

T 101.8: Talk

Thursday, March 27, 2014, 18:35–18:50, P3

Studies of intrinsic resolution of low energy muon neutrino events with neutrino telescopes — •Jannik Hofestädt and Clancy W. James for the ANTARES-KM3NeT-Erlangen collaboration — ECAP, Universität Erlangen

Existing large-volume neutrino telescopes such as Antares, IceCube, and the planned KM3NeT, observe at characteristic particle energies of 1TeV, whereas ORCA and PINGU will operate around 10GeV. In this regime, intrinsic fluctuations in particle behaviour becomes important - muons may be deflected and no longer travel in straight lines, shower products will not be strongly beamed in the forward direction, etc.

The intrinsic fluctuations in energy and direction have been investigated to answer two basic questions. Firstly: how do intrinsic physical fluctuations limit the reconstruction accuracy for the best detector possible, i.e. in the case if every single photon is detected? While this requires making some basic assumptions about the methods used in the reconstruction, the answer to this question will indicate the best that could be achieved by such detectors. Secondly: given that only a finite number of photons will be detected, what is the best possible reconstruction accuracy in the case of a perfect reconstruction of the information carried by these photons? This necessarily depends on the detector characteristics - for this, the ORCA detector will be used.

This investigation separately considers muons and hadronic showers. Taking the kinematics of the neutrino interactions into account, limits on the best possible reconstruction accuracy for the initial muon neutrinos achievable with a ORCA-type detector will be derived.

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