34 th International Conference on High Energy Physics, Philadelphia, 2008 Neutrino Oscillation Measurements with IceCube
We present preliminary results for a neutrino oscillation analysis in progress on data collected with the IceCube 22-string detector during 2007 and 2008. The goal of this analysis is to measure muon neutrino disappearance as a function of energy for a constant baseline length of the diameter of the...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.244.2562 http://arxiv.org/pdf/0810.3698v1.pdf |
| Summary: | We present preliminary results for a neutrino oscillation analysis in progress on data collected with the IceCube 22-string detector during 2007 and 2008. The goal of this analysis is to measure muon neutrino disappearance as a function of energy for a constant baseline length of the diameter of the Earth by studying vertically up-going muon neutrinos. At this baseline disappearance effects are expected to become sizable at neutrino energies below 100 GeV. This energy range has not been previously explored with IceCube, however due to IceCube’s vertical geometry there is some sensitivity for this specific class of events. Based on preliminary selection criteria, we show that IceCube has the potential to detect these events and we estimate the sensitivity to determining oscillation parameters. 1. IceCube Neutrino Observatory The IceCube Neutrino Telescope [1] is a multipurpose discovery experiment under construction at the South Pole. It is currently about half completed and is taking physics data. Upon completion in 2011, IceCube will instrument a volume of one cubic kilometer with 4800 Digital Optical Modules (DOMs). These will be vertically spaced with 17 m separation at a depth between 1450 m and 2450 m in the ice on 80 strings that are arranged in a hexagonal pattern with an inter-string spacing of about 125 m. An additional six strings will be deployed in-between the hexagonal pattern at the center of IceCube in the deep very clean ice region with DOMs more densely spaced and equipped with high quantum efficiency photomultiplier tubes. They will form together with the adjacent IceCube strings the |
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