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arXiv 2203.14536hep-ph
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揭示逆跷跷板模型中通过U(1)规范对称性的中微子唯象学、$(g-2)_{e,μ}$与轻子生成

Unveiling neutrino phenomenology, $(g-2)_{e,μ}$ and leptogenesis through U(1) gauge symmetries in an inverse seesaw model

Papia Panda, Mitesh Kumar Behera, Priya Mishra, Rukmani Mohanta

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25 Pages, 9 Figures, 5 Tables; accepted for publication in Phys. Rev. D
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AI总结：

本研究扩展标准模型引入$U(1)_{B-L}$和$U(1)_{L_e-L_μ}$规范对称性，利用逆跷跷板机制解释中微子振荡、轻子生成及$(g-2)_{e,μ}$异常，并在DUNE等长基线实验中具备可测试性。

摘要：

本研究是标准模型的扩展，引入了两种规范对称性，即$U(1)_{B-L}$和$U(1)_{L_e-L_μ}$，以利用逆跷跷板机制研究中微子唯象学、μ子和电子的$(g-2)$以及轻子生成。为此，我们包含了三个右手中微子$N_{R_i}$、三个中性费米子$S_{L_i} (i =1,2,3)$以及两个标量单态玻色子（$χ_1$和$χ_2$）。由于上述规范对称性，我们得到了中微子质量矩阵的确定结构。因此，我们的模型能够预测中微子振荡结果，这些结果与实验数据相符，并倾向于正常排序。结果包括活性中微子质量、混合角、质量平方差、CP破坏相位等。此外，由于扩展的规范对称性是局部的，存在相应的规范玻色子，记为$Z_{B-L}$和$Z_{e μ}$。其中，$Z_{B-L}$的质量在$\mathcal{O}$(TeV)范围内以满足对撞机约束，而$Z_{e μ}$的质量在MeV范围内，使其能够通过中性流相互作用解释当前的电子和μ子$(g-2)$结果。此外，我们的模型能够解释轻子生成，从而可以演示宇宙的物质-反物质不对称性。另外，我们在即将进行的长基线实验：DUNE、T2HK和T2HKK的背景下，以$5σ$的置信水平探讨了探测我们模型的前景。从结果可以清楚地看出，我们的模型可以在其$3σ$ C.L.下与DUNE、T2HK和T2HKK的$5σ$允许区域一起进行测试。

英文摘要：

The proposed work is an extension of the Standard Model, where we have introduced two gauge symmetries, i.e., $U(1)_{B-L}$ and $U(1)_{L_e-L_μ}$ to study neutrino phenomenology, muon, and electron $(g-2)$ as well as leptogenesis using the inverse seesaw mechanism. For this purpose, we have included three right-handed neutrinos $N_{R_i}$, three neutral fermions $S_{L_i} (i =1,2,3)$ and two scalar singlet bosons ($χ_1$ and $χ_2$). We get a definite structure for the neutrino mass matrix due to the aforementioned gauge symmetries. Thus, our model is able to predict the neutrino oscillation results, which are in accordance with the experimental data and is inclined towards normal ordering. The outcomes comprise the active neutrino masses, mixing angles, mass squared differences, CP-violating phase, etc. Moreover, since the extended gauge symmetries are local, there are corresponding gauge bosons, denoted as $Z_{B-L}$ and $Z_{e μ}$. Of these, mass of $Z_{B-L}$ is $\mathcal{O}$(TeV) range to satisfy the collider constraint, while the mass of $Z_{e μ}$ is in the MeV range, making it feasible to account for current electron and muon $(g-2)$ results via neutral current interactions. Furthermore, our model is able to account for leptogenesis, which can demonstrate the matter-antimatter asymmetry of the universe. Additionally, we have carried out the prospect of probing our model in the context of upcoming long baseline experiments: DUNE, T2HK, and T2HKK, at a confidence level of $5σ$. From the result it is clear that, our model can be tested in its $3σ$ C.L. with $5σ$ allowed region of DUNE, T2HK and T2HKK.

机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。

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