论基本表示中被希格斯场自发破坏的帕蒂-萨拉姆模型的现象学含义

IF 5.4 1区 物理与天体物理 Q1 Physics and Astronomy
George K. Leontaris, Ruiwen Ouyang, Ye-Ling Zhou
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引用次数: 0

摘要

我们提出了一个具有小表示的超对称帕蒂-萨拉姆模型,作为超越标准模型的潜在候选物理。该模型具有一个具有双基本场HR + \( {\overline{H}}_R \) = (4,1,2) + (\( \overline{4} \), 1,2), HL + \( {\overline{H}}_L \) = (4,2,1) + (\( \overline{4} \), 2,1)的希格斯扇区,以及一对双重场ha =(1,2,2),其中a = 1,2,三族费米子像往常一样被容纳在(4,2,1)+ (\( \overline{4} \), 1,2)中。物质谱增加了三个中性单重态,它们与普通中微子混合,实现了跷跷板机制。该模型引入了超对称的r -对称和全局离散的n -对称(n &gt;2)防止灾难性的超势耦合,而其自发断裂意味着成功解决的畴壁的存在。有趣的是,SU(4)C规范耦合的单环β系数在最小的t3模型中为零,使得相应的规范耦合在UV中接近保角。同时,在普朗克尺度下避免了朗道极,抑制了质子衰变,导致质子寿命超出了目前的实验界限。凭借扩展的希格斯扇区,该PS模型的关键优势在于它能够通过高维有效算子解开夸克和轻子质量的纠缠,解决了具有小希格斯表示的GUT模型中的一个常见限制。这使得模型更经济,更容易从弦理论中构建,特别是在伴随表示中不存在希格斯的几种异质和f理论模型中。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
On the phenomenological implications of a Pati-Salam model spontaneously broken by Higgs fields in fundamental representations

We present a supersymmetric Pati-Salam model with small representations as a potential candidate for physics beyond the Standard Model. The model features a Higgs sector with bifundamental fields HR + \( {\overline{H}}_R \) = (4, 1, 2) + (\( \overline{4} \), 1, 2), HL + \( {\overline{H}}_L \) = (4, 2, 1) + (\( \overline{4} \), 2, 1) as well as a pair of bi-doublet fields ha = (1, 2, 2) where a = 1, 2, with three families of fermions accommodated in (4, 2, 1) + (\( \overline{4} \), 1, 2) as usual. The matter spectrum is augmented with three copies of neutral singlets that mix with ordinary neutrinos to realize the seesaw mechanism. The model introduces supersymmetric R-symmetry and a global discrete n symmetry (n > 2) that prevents disastrous superpotential couplings, while its spontaneous breaking implies the existence of domain walls that are successfully addressed. Interestingly, the one-loop beta coefficient of the SU(4)C gauge coupling is zero in the minimal 3 model, rendering the corresponding gauge coupling near-conformal in the UV. Meanwhile, Landau poles are avoided up to the Planck scale and proton decay is suppressed, resulting in a proton lifetime beyond current experimental bounds. By virtue of the extended Higgs sector, the key advantage of this PS model is its ability to disentangle quark and lepton masses through higher-dimensional effective operators, addressing a common limitation in GUT models with small Higgs representations. This makes the model more economical and easier to be constructed from string theory, particularly in several heterotic and F-theory models where Higgses in the adjoint representation are absent.

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来源期刊
Journal of High Energy Physics
Journal of High Energy Physics 物理-物理:粒子与场物理
CiteScore
10.30
自引率
46.30%
发文量
2107
审稿时长
1.5 months
期刊介绍: The aim of the Journal of High Energy Physics (JHEP) is to ensure fast and efficient online publication tools to the scientific community, while keeping that community in charge of every aspect of the peer-review and publication process in order to ensure the highest quality standards in the journal. Consequently, the Advisory and Editorial Boards, composed of distinguished, active scientists in the field, jointly establish with the Scientific Director the journal''s scientific policy and ensure the scientific quality of accepted articles. JHEP presently encompasses the following areas of theoretical and experimental physics: Collider Physics Underground and Large Array Physics Quantum Field Theory Gauge Field Theories Symmetries String and Brane Theory General Relativity and Gravitation Supersymmetry Mathematical Methods of Physics Mostly Solvable Models Astroparticles Statistical Field Theories Mostly Weak Interactions Mostly Strong Interactions Quantum Field Theory (phenomenology) Strings and Branes Phenomenological Aspects of Supersymmetry Mostly Strong Interactions (phenomenology).
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