Sizable NSI from the SU(2)L scalar doublet-singlet mixing and the implications in DUNE
Sizable NSI from the SU(2)L scalar doublet-singlet mixing and the implications in DUNE
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DOI：
10.1007/jhep03(2017)018
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发表时间：
2016-08
影响因子：
5.4
通讯作者：
D. V. Forero;Wei-Chih Huang
中科院分区：
文献类型：
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作者：
D. V. Forero;Wei-Chih Huang
我们提出了一种新颖而简单的机制，其中相当大的非标准相互作用（NSI）在中微子传播的影响，从亲电的第二希格斯双态和带电的单态之间的混合诱导。混合产生于标量二重态和单重态与标准模型希格斯玻色子的维度耦合。在小质量的情况下，由二重态-单重态混合产生的轻质量本征态比重质量本征态产生的NSI大得多。我们表明，一个相当大的NSI ε eτ（ε 0.3），可以获得不排除各种实验约束。此外，我们表明，NSI可以模仿的狄拉克CP相位的中微子混合矩阵的影响，但他们可以潜在地解开未来的长基线中微子实验，如深地下中微子实验（DUNE）。
We propose a novel and simple mechanism where sizable effects of non-standard interactions (NSI) in neutrino propagation are induced from the mixing between an electrophilic second Higgs doublet and a charged singlet. The mixing arises from a dimensionful coupling of the scalar doublet and singlet to the standard model Higgs boson. In light of the small mass, the light mass eigenstate from the doublet-singlet mixing can generate much larger NSI than those induced by the heavy eigenstate. We show that a sizable NSI ε eτ (∼ 0.3) can be attained without being excluded by a variety of experimental constraints. Furthermore, we demonstrate that NSI can mimic effects of the Dirac CP phase in the neutrino mixing matrix but they can potentially be disentangled by future long-baseline neutrino experiments, such as the Deep Underground Neutrino Experiment (DUNE).