CP phases in 2HDM and effective potential: A geometrical view

被引：12

作者：

Cao, Qing-Hong ^{[1
,2
,3
,4
]}

Cheng, Kun ^{[2
]}

Xu, Changlong ^{[2
]}

机构：

[1] Peking Univ, Dept Phys, Beijing 100871, Peoples R China

[2] Peking Univ, State Key Lab Nucl Phys & Technol, Beijing 100871, Peoples R China

[3] Collaborat Innovat Ctr Quantum Matter, Beijing 100871, Peoples R China

[4] Peking Univ, Ctr High Energy Phys, Beijing 100871, Peoples R China

来源：

PHYSICAL REVIEW D | 2023年 / 107卷 / 01期

基金：

美国国家科学基金会;

关键词：

MODEL; VIOLATION; TRANSITIONS; INVARIANTS;

D O I：

10.1103/PhysRevD.107.015016

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Using a geometric description of 2HDM, the CP-odd invariants are classified into three independent sectors: scalar potential, Yukawa interaction, and CKM matrix. We calculate the effective thermal potential of 2HDM in a basis invariant way and show that the CP phases in the CKM matrix cannot leak to the effective potential at all orders. In the 2HDM with a softly broken Z2 symmetry, the leading thermal correction to the effective potential tends to restore the CP symmetry at high temperatures.

引用

页数：8

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