Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-05-05
Physics
High Energy Physics
High Energy Physics - Phenomenology
20 pages, 2 figures, REVTeX4
Scientific paper
We systematically investigate the prospects of testing new physics with tau sensitive near detectors at neutrino oscillation facilities. For neutrino beams from pion decay, from the decay of radiative ions, as well as from the decays of muons in a storage ring at a neutrino factory, we discuss which effective operators can lead to new physics effects. Furthermore, we discuss the present bounds on such operators set by other experimental data currently available. For operators with two leptons and two quarks we present the first complete analysis including all relevant operators simultaneously and performing a Markov Chain Monte Carlo fit to the data. We find that these effects can induce tau neutrino appearance probabilities as large as O(10^{-4}), which are within reach of forthcoming experiments. We highlight to which kind of new physics a tau sensitive near detector would be most sensitive.
Antusch Stefan
Blennow Mattias
Fernandez-Martinez Enrique
Ota Toshihiko
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