两个希格斯双重态模型中多临界点原理的希格斯对准

IF 4.8 2区物理与天体物理 Q2 PHYSICS, PARTICLES & FIELDS

The European Physical Journal C Pub Date : 2025-01-25 DOI:10.1140/epjc/s10052-025-13824-8

Hikaru Kawai, Kiyoharu Kawana, Kin-ya Oda, Kei Yagyu

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引用次数: 0

摘要

在具有非最小希格斯扇区的模型中，为了防止希格斯玻色子耦合与标准模型预测的显著偏差，必须强制（接近）希格斯对准，这会导致严重的微调问题。我们证明了希格斯排列是由一般双希格斯双重态模型中的多临界点原理（MPP）自然推导出来的，同时保持了非零的cp违反相。此外，我们讨论了从MPP实现汤川对准的可能性，这是防止希格斯玻色子在树水平介导的改变风味的中性电流所必需的，并且发现由于CKM矩阵的非对角结构，MPP似乎很难实现汤川对准。

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Higgs alignment from multicritical-point principle in two Higgs doublet models

In models with non-minimal Higgs sectors, enforcing (near) Higgs alignment, necessary to prevent significant deviations in the Higgs boson coupling from the standard model prediction, causes a serious fine-tuning problem. We demonstrate that the Higgs alignment is naturally deduced from the multicritical point principle (MPP) in the general two Higgs doublet model while keeping non-zero CP-violating phases. Furthermore, we discuss the possibility of realizing the Yukawa alignment from the MPP, which is necessary to prevent flavor-changing neutral currents mediated by Higgs bosons at tree level, and find that it seems difficult to realize it by the MPP due to the non-diagonal structure of the CKM matrix.

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来源期刊

The European Physical Journal C 物理-物理：粒子与场物理

CiteScore

8.10

自引率

15.90%

发文量

1008

审稿时长

2-4 weeks

期刊介绍： Experimental Physics I: Accelerator Based High-Energy Physics Hadron and lepton collider physics Lepton-nucleon scattering High-energy nuclear reactions Standard model precision tests Search for new physics beyond the standard model Heavy flavour physics Neutrino properties Particle detector developments Computational methods and analysis tools Experimental Physics II: Astroparticle Physics Dark matter searches High-energy cosmic rays Double beta decay Long baseline neutrino experiments Neutrino astronomy Axions and other weakly interacting light particles Gravitational waves and observational cosmology Particle detector developments Computational methods and analysis tools Theoretical Physics I: Phenomenology of the Standard Model and Beyond Electroweak interactions Quantum chromo dynamics Heavy quark physics and quark flavour mixing Neutrino physics Phenomenology of astro- and cosmoparticle physics Meson spectroscopy and non-perturbative QCD Low-energy effective field theories Lattice field theory High temperature QCD and heavy ion physics Phenomenology of supersymmetric extensions of the SM Phenomenology of non-supersymmetric extensions of the SM Model building and alternative models of electroweak symmetry breaking Flavour physics beyond the SM Computational algorithms and tools...etc.