Cornering the revamped BMV model with neutrino oscillation data
Cornering the revamped BMV model with neutrino oscillation data
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DOI：
10.1016/j.physletb.2017.09.052
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发表时间：
2017-08
期刊：
影响因子：
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通讯作者：
Sabya Sachi Chatterjee;M. Masud;P. Pasquini;J. Valle
中科院分区：
文献类型：
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作者：
Sabya Sachi Chatterjee;M. Masud;P. Pasquini;J. Valle
利用文献[1]中中微子振荡参数的最新全球测定结果，我们研究了文献[2]中提出的BMV（Babu-Ma-瓦莱）模型的最简单的改进版本的状态。该模型预测了大气角θ 23和CP相位δ CP之间的显著相关性，导致最大CP破坏或无CP破坏，这取决于优选的θ 23八分体。我们确定了允许的BMV参数区域，并与一般的三中微子振荡方案进行了比较。我们表明，在BMV模型中，只有在99%CL时才可能有更高的八分圆，这比一般情况下的拒绝更强。通过对即将到来的DUNE和T2 HK实验进行定量模拟，仅使用四个“测量良好”的振荡参数和正常质量排序的指示，我们还绘制出这些实验对模型的潜在影响。由此产生的全局灵敏度给出了一个强大的形式，持有的振荡参数的真实值无关。
Using the latest global determination of neutrino oscillation parameters from [1] we examine the status of the simplest revamped version of the BMV (Babu–Ma–Valle) model, proposed in [2]. The model predicts a striking correlation between the “poorly determined” atmospheric angle θ 23 and CP phase δ C P, leading to either maximal CP violation or none, depending on the preferred θ 23 octants. We determine the allowed BMV parameter regions and compare with the general three-neutrino oscillation scenario. We show that in the BMV model the higher octant is possible only at 99% CL, a stronger rejection than found in the general case. By performing quantitative simulations of forthcoming DUNE and T2HK experiments, using only the four “well-measured” oscillation parameters and the indication for normal mass ordering, we also map out the potential of these experiments to corner the model. The resulting global sensitivities are given in a robust form, that holds irrespective of the true values of the oscillation parameters.