Non-standard interactions using the OPERA experiment |
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Authors: | Mattias Blennow Davide Meloni Tommy Ohlsson Francesco Terranova Mattias Westerberg |
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Institution: | High Energy Accelerator Research Organization (KEK), Tsukuba Ibaraki, 305-0801, Japan |
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Abstract: | We investigate the implications of non-standard interactions on neutrino oscillations in the OPERA experiment. In particular,
we study the non-standard interaction parameter ε
μ
τ
. We show that the OPERA experiment has a unique opportunity to reduce the allowed region for this parameter compared with
other experiments such as the MINOS experiment, mostly due to the higher neutrino energies in the CNGS beam compared to the
NuMI beam. We find that OPERA is mainly sensitive to a combination of standard and non-standard parameters and that a resulting
anti-resonance effect could suppress the expected number of events. Furthermore, we show that running OPERA for five years
each with neutrinos and anti-neutrinos would help in resolving the degeneracy between the standard parameters and ε
μ
τ
. This scenario is significantly better than the scenario with a simple doubling of the statistics by running with neutrinos
for ten years. |
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Keywords: | |
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