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arXiv 1503.05948hep-ph
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具有轻子族对称性O(2)xZ2的三重希格斯玻色子偶模型的稳定性和对称破缺

Stability and symmetry breaking in a three Higgs-boson doublet model with lepton family symmetry O(2)xZ2

M. Maniatis, D. Mehta, Carlos M. Reyes

摘要:

受中微子数据的启发,人们提出了一个标准模型的扩展,其中包含三个希格斯玻色子二重态。通过O(2)x Z2族对称性,一个中微子混合矩阵θ 23 = π/4和θ 13 = 0以自然的方式出现。即使这些混合矩阵的值不遵循最近的实验约束,它们仍然是一个很好的近似。我们详细研究了这个模型的希格斯势。我们采用最近的方法,允许任何三希格斯玻色子二重模型的研究。结果表明,对于各种参数,势是稳定的,具有正确的电弱对称性破缺,并给出正确的真空期望值。

英文摘要:

Motivated by the neutrino data, an extension of the Standard Model with three Higgs-boson doublets has been proposed. Imposing an O(2) x Z2 family symmetry, a neutrino mixing matrix with theta23 = pi/4 and theta13 = 0 appears in a natural way. Even though these values for the mixing matrix do not follow the recent experimental constraints, they are nevertheless a good approximation. We study the Higgs potential of this model in detail. We apply recent methods which allow for the study of any three-Higgs-boson doublet model. It turns out that for a variety of parameters the potential is stable, has the correct electroweak symmetry breaking, and gives the correct vacuum expectation value.

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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