Global constraints on muon-neutrino nonstandard interactions

摘要: The search for new interactions of neutrinos beyond those the standard model may help to elucidate mechanism responsible neutrino masses. Here, we combine existing accelerator data with restrictions coming from a recent atmospheric analysis in order lift parameter degeneracies and improve limits on muon quarks. In particular, reconsider results E-815 experiment at Fermilab (NuTeV) view evaluation its systematic uncertainties. We find that, although constraints are better than applicable tau or electron neutrinos, they lie fewx10{sup -2} level, not as strong previously believed. briefly discuss prospects further improvement.