Charged scalars confronting neutrino mass and muon g-2 anomaly

被引：13

作者：

Chakrabarty, Nabarun ^{[1
]}

Chiang, Cheng-Wei ^{[1
,2
,3
]}

Ohata, Takahiro ^{[4
]}

Tsumura, Koji ^{[4
]}

机构：

[1] Natl Ctr Theoret Sci, Phys Div, Hsinchu 30013, Taiwan

[2] Natl Taiwan Univ, Dept Phys, Taipei 10617, Taiwan

[3] Acad Sinica, Inst Phys, Taipei 11529, Taiwan

[4] Kyoto Univ, Dept Phys, Kyoto 6068502, Japan

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 12期

关键词：

Beyond Standard Model; Higgs Physics; Neutrino Physics; ZEE-BABU MODEL; MAGNETIC-MOMENT; VIOLATION; SEARCH;

D O I：

10.1007/JHEP12(2018)104

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

The present work introduces two possible extensions of the Standard Model Higgs sector. In the first case, the Zee-Babu type model for the generation of neutrino mass is augmented with a scalar triplet and additional singly charged scalar singlets. The second scenario, on the other hand, generalizes the Type-II seesaw model by replicating the number of the scalar triplets. A Z(3) symmetry is imposed in case of both the scenarios, but, allowed to be violated by terms of mass dimension two and three for generating neutrino masses and mixings. We examine how the models so introduced can explain the experimental observation on the muon anomalous magnetic moment. We estimate the two-loop contribution to neutrino mass induced by the scalar triplet, in addition to what comes from the doubly charged singlet in the usual Zee-Babu framework, in the first model. On the other hand, the neutrino mass arises in the usual Type-II fashion in the second model. In addition, the role of the Z(3) symmetry in suppressing lepton flavor violation is also elucidated.

引用

页数：32

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