The landscape of promising non-supersymmetric string models

Abstract

Leptoquarks extending the Standard Model (SM) are attracting an increasing attention in the recent literature. Hence, the identification of 4D SM-like models and the classification of allowed leptoquarks from strings is an important step in the study of string phenomenology. We perform the most extensive search for SM-like models from the non-supersymmetric heterotic string $\mathrm{SO}(16)\times \mathrm{SO}(16)$, resulting in more than 170,000 inequivalent promising string models from 138 Abelian toroidal orbifolds. We explore the 4D massless particle spectra of these models in order to identify all exotics beside the three generations of quarks and leptons. Hereby, we learn which leptoquark can be realized in this string setup. Moreover, we analyze the number of SM Higgs doublets which is generically larger than one. Then, we identify SM-like models with a minimal particle content. These so-called "almost SM" models appear most frequently in the orbifold geometries ${\mathbb{Z}}_2\times {\mathbb{Z}}_4$ (2,4) and (1,6). Finally, we apply machine learning to our dataset in order to predict the orbifold geometry where a given particle spectrum can be found most likely.

30 pages, 5 figures, 9 tables

References in corpus (37)

• A Mini-Landscape of Exact MSSM Spectra in Heterotic Orbifolds
• Stringy origin of non-Abelian discrete flavor symmetries
• New physics explanations of $a_{\mu }$ in light of the FNAL muon $g-2$ measurement
• The Heterotic Road to the MSSM with R parity
• The Leptoquark Hunter's Guide: Pair Production
• On the single leptoquark solutions to the $B$-physics anomalies
• Towards a Non-Supersymmetric String Phenomenology
• Machine Learning in the String Landscape
• Evolving neural networks with genetic algorithms to study the String Landscape
• Branes with Brains: Exploring String Vacua with Deep Reinforcement Learning
• Non-supersymmetric heterotic model building
• Eclectic flavor scheme from ten-dimensional string theory -- I. Basic results
• Chiral Heterotic Strings with Positive Cosmological Constant
• Stability of the normal vacuum in multi-Higgs-doublet models
• A Minimal Explanation of Flavour Anomalies: B-Meson Decays, Muon Magnetic Moment, and the Cabibbo Angle
• Seesaw Neutrinos from the Heterotic String
• Universality of Gauge Thresholds in Non-Supersymmetric Heterotic Vacua
• Geography of Fields in Extra Dimensions: String Theory Lessons for Particle Physics
• Leptoquarks and Matter Unification: Flavor Anomalies and the Muon $g-2$
• Leptoquark Option for $B$-meson Anomalies and Leptonic Signatures
• $(g-2{)}_{\mu }$ in the 2HDM and slightly beyond -- an updated view
• Explanations for anomalies of muon anomalous magnetic dipole moment, $b\to s\mu \bar{\mu }$ and radiative neutrino masses in a leptoquark model
• Axion-like particles, two-Higgs-doublet models, leptoquarks, and the electron and muon g-2
• Discrete R-symmetry anomalies in heterotic orbifold models
• Muon $g-2$ in a two-Higgs-doublet model with a type-II seesaw mechanism
• Delta(54) flavor phenomenology and strings
• Grand Unification in the Heterotic Brane World
• Contrast data mining for the MSSM from strings
• Type $\bar{0}$ Heterotic String Orbifolds
• Leptophilic U(1) Massive Vector Bosons from Large Extra Dimensions
• Fermion mass hierarchy and g-2 anomalies in an extended 3HDM Model
• Muon $g-2$ discrepancy within D-brane string compactifications
• Leptonic CP violation in flipped SU(5) GUT from $Z_{12-I}$ Orbifold Compactification
• U(1)' coupling constant at low energies from heterotic orbifolds
• Six Higgs Doublets Model for Dark Matter
• One-loop corrections for Higgs-portal dark matter
• R-parity from string compactification

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