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arXiv · 2305.12764

Global Symmetries and Effective Potential of 2HDM in Orbit Space

Qing-Hong Cao·Kun Cheng·Changlong Xu
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Abstract

We extend the framework of analyzing the 2HDM in its orbit space to study the one-loop effective potential before and after electroweak symmetry breaking. In this framework, we present a comprehensive analysis of global symmetries of the one-loop thermal effective potential in the 2HDM, demonstrating when the global symmetries of the tree-level 2HDM potential are broken by loop contributions. By introducing light-cone coordinates and generalizing the bilinear notation around the vacuum, we present a geometric view of the scalar mass matrix and on-shell renormalization conditions.

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Qing-Hong Cao, Kun Cheng, Changlong Xu. 2023-05-22. Global Symmetries and Effective Potential of 2HDM in Orbit Space. https://doi.org/10.1103/physrevd.108.055036

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