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The ORCA Option for KM3NeT · Around

2014

The ORCA Option for KM3NeT

Katz, Ulrich F.

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It has recently been suggested that the neutrino mass hierarchy can be experimentally determined from the oscillation pattern of atmospheric neutrinos passing through the Earth by measuring the two-dimensional arrival pattern of neutrinos in energy and zenith angle, in the energy regime of about 3-20 GeV.

ORCA (Oscillation Research with Cosmics in the Abyss) is a study addressing the feasibility of such a measurement employing the deep-sea neutrino telescope technology developed for the KM3NeT project.
In the following, the underlying physics and resulting experimental signatures will be discussed and some aspects of the ongoing simulation studies presented.
A preliminary sensitivity estimate derived from a simplified study strongly indicates that an exposure of at least 20 Mton-years will be required to arrive at conclusive results.

Built on

Preliminary reference Earth model
A.M. Dziewonski and D.L. Anderson, · 1981
Earlier work this paper cites.
Flux of atmospheric neutrinos
T.K. Gaisser and M. Honda, · 2002
Earlier work this paper cites.
High-energy neutrino astrophysics: Status and perspectives
Original
U.F. Katz and Ch. Spiering, · 2012
Earlier work this paper cites.
Review of Particle Physics, section 13: Neutrino mass, mixing, and oscillations
J. Beringer et al. (Particle Data Group), · 2013
Earlier work this paper cites.

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available on http://www.km3net.org
KM3NeT web page,
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Then

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