精密弦现象学

IF 5 2区物理与天体物理 Q1 Physics and Astronomy

Physical Review D Pub Date : 2025-04-02 DOI:10.1103/physrevd.111.086007

Per Berglund, Giorgi Butbaia, Tristan Hübsch, Vishnu Jejjala, Damián Mayorga Peña, Challenger Mishra, Justin Tan

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引用次数: 0

摘要

E8×E8异质弦的Calabi-Yau紧化为恢复标准模型描述的四维粒子物理提供了一条有希望的途径。在低能量有效场论中，Calabi-Yau空间的拓扑结构决定了整体的物质含量，而计算基本粒子的归一化物理耦合和质量需要进一步的紧化几何细节。在这项工作中，我们在标准嵌入的一些异质模型中提出了物理汤川耦合的数值计算，并证明了自然层次的存在，这是字符串模型构建中令人垂涎的特征。2025年由美国物理学会出版

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Precision string phenomenology

Calabi-Yau compactifications of the E8×E8 heterotic string provide a promising route to recovering the four-dimensional particle physics described by the Standard Model. While the topology of the Calabi-Yau space determines the overall matter content in the low-energy effective field theory, further details of the compactification geometry are needed to calculate the normalized physical couplings and masses of elementary particles. In this work, we present numerical computations of physical Yukawa couplings in a number of heterotic models in the standard embedding and demonstrate the existence of natural hierarchies, a coveted feature in string model building.

Published by the American Physical Society

2025

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来源期刊

Physical Review D 物理-天文与天体物理

CiteScore

9.20

自引率

36.00%

发文量

审稿时长

2 months

期刊介绍： Physical Review D (PRD) is a leading journal in elementary particle physics, field theory, gravitation, and cosmology and is one of the top-cited journals in high-energy physics. PRD covers experimental and theoretical results in all aspects of particle physics, field theory, gravitation and cosmology, including: Particle physics experiments, Electroweak interactions, Strong interactions, Lattice field theories, lattice QCD, Beyond the standard model physics, Phenomenological aspects of field theory, general methods, Gravity, cosmology, cosmic rays, Astrophysics and astroparticle physics, General relativity, Formal aspects of field theory, field theory in curved space, String theory, quantum gravity, gauge/gravity duality.