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arXiv · 1412.5987

A novel technique for the measurement of the electron neutrino cross section

A. Longhin·L. Ludovici·F. Terranova
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Abstract

Absolute neutrino cross section measurements are presently limited by uncertainties on $ν$ fluxes. In this paper, we propose a technique that is based on the reconstruction of large angle positrons in the decay tunnel to identify three-body semileptonic $K^+ \rightarrow e^+ π^0 ν_e$ decays. This tagging facility operated in positron counting mode ("event count mode") can be employed to determine the absolute $ν_e$ flux at the neutrino detector with ${\cal O}(1\%)$ precision. Facilities operated in "event by event tag mode" i.e. tagged neutrino beams that exploit the time coincidence of the positron at source and the $ν_e$ interaction at the detector, are also discussed.

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A. Longhin, L. Ludovici, F. Terranova. 2015-04-07. A novel technique for the measurement of the electron neutrino cross section. https://doi.org/10.1140/epjc%2Fs10052-015-3378-9

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