Resonant top pair searches at the LHC: A window to the electroweak phase transition

被引：10

作者：

Gonsalves, Dorival ^{[1
]}

Kaladharan, Ajay ^{[1
]}

Wu, Yongcheng ^{[1
,2
]}

机构：

[1] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA

[2] Nanjing Normal Univ, Inst Theoret Phys, Dept Phys, Nanjing 210023, Peoples R China

来源：

PHYSICAL REVIEW D | 2023年 / 107卷 / 07期

基金：

美国国家科学基金会;

关键词：

HIGGS-BOSON; FALSE VACUUM; DECAY; FATE;

D O I：

10.1103/PhysRevD.107.075040

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The dynamics of electroweak phase transition could have profound consequences for particle physics and cosmology. We study the prospects for the HL-LHC to probe the strong first-order electroweak phase transition (SFOEWPT) regime in the type-I 2HDM. We focus on the Higgstrahlung channel pp - ZH/A with a resonant top-quark pair final state H/A - tt over bar . We find that the top-quark pair final state renders the largest sensitivity to the SFOEWPT regime, in comparison to the other Higgstrahlung searches already performed by ATLAS and CMS, that focus on the H/A - bb and H - WW final states. We also derive the complementarity of the Higgstrahlung searches with other relevant classes of searches at the HL-LHC and compare them with the gravitational wave sensitivity at LISA.

引用

页数：13

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