The error probability of the discrimination of the Standard Model (SM) with massive neutrinos and its new physics (NP) model extension in experiments of the muon neutrino oscillation, following the pion decay $\pi^{+} \rightarrow \mu^{+} + \nu_{\mu}$, is calculated. The stability of the estimation of the NP charged current coupling constant $\varepsilon_{R}$ is analysed and the robustness of this estimation is checked. It is shown that the upper bound on the error probability of erroneous identification of the Standard Model with its NP model extension has reached the significantly small value of approximately $2.3 \times 10^{-6}$.

中文翻译：

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中微子振荡实验中新物理右手性CC耦合常数的估计

介子中微子振荡实验中标准模型（SM）与大量中微子的判别错误概率及其新物理（NP）模型扩展，在介子衰变之后 $\pi^{+} \rightarrow \mu^{ +} + \nu_{\mu}$, 计算。分析了 NP 充电电流耦合常数 $\varepsilon_{R}$ 估计的稳定性，并检查了该估计的稳健性。结果表明，标准模型及其 NP 模型扩展的错误识别错误概率的上限已达到约 $2.3 \times 10^{-6}$ 的显着小值。