arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.05857hep-ph
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3-3-1型模型中中微子质量的辐射产生

Radiative generation of neutrino masses in a 3-3-1 type model

Arindam Das, Kazuki Enomoto, Shinya Kanemura, Kei Yagyu

摘要:

在$SU(3)_C \otimes SU(3)_L \otimes U(1)_X$规范理论中提出了一个新的微中微子质量模型,其中微中微子质量是通过新粒子的量子效应产生的。在该模型中,费米子含量被取为最小以实现规范反常抵消,而标量扇区从最小3-3-1模型扩展到具有额外的$SU(3)_L$三重态场。将$SU(3)_L\otimes U(1)_X$分解为$SU(2)_L\otimes U(1)_Y$后,自然地导出了包含足够轻子味破坏相互作用的“Zee模型”图,从而再现了当前的中微子振荡数据。此外,电弱对称性破缺后出现的剩余$Z_2$对称性保证了暗物质的稳定性。证实了该模型能够满足当前的暗物质数据。作为检验该模型的一个重要预言,在成功的基准方案中讨论了对撞机实验中双荷标量玻色子的产生和衰变。

英文摘要:

A new model for tiny neutrino masses is proposed in the gauge theory of $SU(3)_C \otimes SU(3)_L \otimes U(1)_X$, where neutrino masses are generated via the quantum effect of new particles. In this model, the fermion content is taken to be minimal to realize the gauge anomaly cancellation, while the scalar sector is extended from the minimal 3-3-1 model to have an additional $SU(3)_L$ triplet field. After $SU(3)_L\otimes U(1)_X$ is broken into $SU(2)_L\otimes U(1)_Y$, the "Zee model" like diagrams are naturally induced, which contain sufficient lepton flavor violating interactions to reproduce current neutrino oscillation data. Furthermore, the remnant $Z_2$ symmetry appears after the electroweak symmetry breaking, which guarantees the stability of dark matter. It is confirmed that this model can satisfy current dark matter data. As an important prediction to test this model, productions and decays of doubly-charged scalar bosons at collider experiments are discussed in successful benchmark scenarios.

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