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arXiv 2306.02410hep-ph
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双Higgs二重态模型的新对称性

New Symmetries of the Two-Higgs-Doublet Model

Pedro M. Ferreira, Bohdan Grzadkowski, Odd Magne Ogreid, Per Osland

AI总结:

本文在双Higgs二重态模型中发现参数空间内七种基与重整化群不变的新全局对称性,分析其唯象学、软破缺需求及向费米子扇区的两圈扩展。

摘要:

在规范群SU(2)×U(1)下保持不变的双Higgs二重态模型,已知其标量扇区具有六种额外的全局离散或连续对称性。我们发现了该模型参数空间中的若干区域,它们在标量和规范扇区中在微扰论所有阶上均具有基不变性和重整化群不变性,但并不对应于迄今为止所考虑过的任何对称性。因此,我们识别出该模型的七种新对称性,并讨论其唯象学。其中某些模型需要软对称性破缺,以使电弱对称性破缺能够发生。我们表明,至少在两圈水平上,有可能将其中一些对称性扩展到包含费米子。

英文摘要:

The Two Higgs Doublet Model invariant under the gauge group SU(2)xU(1) is known to have six additional global discrete or continuous symmetries of its scalar sector. We have discovered regions of parameter space of the model which are basis and renormalization group invariant to all orders of perturbation theory in the scalar and gauge sectors, but correspond to none of the hitherto considered symmetries. We therefore identify seven new symmetries of the model and discuss their phenomenology. Soft symmetry breaking is required for some of these models so that electroweak symmetry breaking can occur. We show that, at least at the two-loop level, it is possible to extend some of these symmetries to include fermions.

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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