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A detector to monitor the neutrino beam asymmetry at the T2K 280m hall

Abstract : We propose to build and operate a new detector for the T2K 280m hall with the purpose of measuring and monitoring the possible neutrino beam left-right asymmetry with respect to the beam axis. The measurement will be performed by means of two identical detectors (modules) made of a sandwich of iron plates and planes of scintillator bars read out by WLS fibers and multianode PMTs. The two modules could be swapped in their positions in order to minimize systematic errors. We show that an overall uncertainty of less than 5% in the measurement of the beam asymmetry could be reached within one year of running.
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http://hal.in2p3.fr/in2p3-00409178
Contributor : Dominique Girod <>
Submitted on : Thursday, August 6, 2009 - 1:48:09 PM
Last modification on : Monday, February 1, 2021 - 4:16:03 PM
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  • HAL Id : in2p3-00409178, version 1

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A. Ariga, F. Bay, A. Ereditato, E. Frank, M. Hess, et al.. A detector to monitor the neutrino beam asymmetry at the T2K 280m hall. 2008, pp.1-50. ⟨in2p3-00409178⟩

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