A concrete composite 2-Higgs doublet model

被引：14

作者：

De Curtis, Stefania ^{[1
,2
]}

Delle Rose, Luigi ^{[1
,2
,3
]}

Moretti, Stefano ^{[3
,4
]}

Yagyu, Kei ^{[5
]}

机构：

[1] INFN Sez Firenze, Via G Sansone 1, I-50019 Sesto Fiorentino, Italy

[2] Univ Florence, Dept Phys & Astron, Via G Sansone 1, I-50019 Sesto Fiorentino, Italy

[3] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England

[4] Rutherford Appleton Lab, Particle Phys Dept, Didcot OX11 0QX, Oxon, England

[5] Seikei Univ, Musashino, Tokyo 1808633, Japan

来源：

JOURNAL OF HIGH ENERGY PHYSICS | 2018年 / 12期

基金：

欧盟地平线“2020”;

关键词：

Beyond Standard Model; Higgs Physics; Technicolor and Composite Models; BASIS-INDEPENDENT METHODS; 2-HIGGS-DOUBLET MODEL;

D O I：

10.1007/JHEP12(2018)051

中图分类号：

O412 [相对论、场论]; O572.2 [粒子物理学];

学科分类号：

摘要：

We consider a Composite Higgs Model (CHM) with two isospin doublet Higgs fields arising as pseudo Nambu-Goldstone bosons from a SO(6) SO(4) x SO(2) breaking. The main focus of this work is to explicitly compute the properties of these Higgses in terms of the fundamental parameters of the composite sector such as masses, Yukawa and gauge couplings of the new spin-1 and spin-1/2 resonances. Concretely, we calculate the Higgs potential at one-loop level through the Coleman-Weinberg mechanism from the explicit breaking of the SO(6) global symmetry by the partial compositeness of fermions and gauge bosons. We derive then the phenomenological properties of the Higgs states and highlight the main signatures of this Composite 2-Higgs Doublet Model at the Large Hadron Collider, including modifications to the SM-like Higgs couplings as well as production and decay channels of heavier Higgs bosons. We also consider flavour bounds that are typical of CHMs with more than one Higgs doublet.

引用

页数：47

共 43 条

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