Nelson-Barr models with vector-like quark doublets suppress hadronic CP violation to three loops via an accidental symmetry in the renormalizable theory, yielding phenomenologically viable solutions distinct from singlet-based models.
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Investigating the near-criticality of the Higgs boson
10 Pith papers cite this work. Polarity classification is still indexing.
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abstract
We extract from data the parameters of the Higgs potential, the top Yukawa coupling and the electroweak gauge couplings with full 2-loop NNLO precision, and we extrapolate the SM parameters up to large energies with full 3-loop NNLO RGE precision. Then we study the phase diagram of the Standard Model in terms of high-energy parameters, finding that the measured Higgs mass roughly corresponds to the minimum values of the Higgs quartic and top Yukawa and the maximum value of the gauge couplings allowed by vacuum metastability. We discuss various theoretical interpretations of the near-criticality of the Higgs mass.
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representative citing papers
SO(10) scalar threshold corrections generate the Higgs quartic enhancement factor k≈6 required by radiative electroweak symmetry breaking, placing the Landau pole at 1.5-2×10^16 GeV near the GUT scale.
Modular spontaneous CP breaking during inflation with the modulus as inflaton produces one-loop cosmological collider signals from SM fermions enhanced by chemical potentials, allowing probes of sub-Planckian modulus decay constants.
The pole-level ratio M_Z M_t / M_H² is 1.00362 ± 0.00261, consistent with an exact relation at 1.4 sigma, but the NNLO-matched MSbar version at the top scale deviates to 0.96714, requiring either a pole-level symmetry or a finite threshold factor of 1.034.
The Standard Model extended by n vector-like quarks and one right-handed neutrino stabilizes the Higgs quartic to the Planck scale, produces viable neutrino masses via Type-I seesaw, and yields inflationary observables n_s and r consistent with Planck and ACT data.
Machine learning optimization of a generalized SU(5) parameter y finds y ≈ 0.8 produces the closest match to the original model while resolving the fermion mass discrepancy.
Euclidean wormholes enlarge the semiclassical initial-condition landscape for the universe in a physically rich manner that aligns with holographic expectations and supports early-universe model building.
Mixing angle between toponium and elementary field Ψ is constrained to |θ| ≤ 13° (minimal model) or |θ| ≤ 1° (2HDM Type II/Y) to fit CMS ttbar excess under MPP.
The FCC feasibility study describes how a staged electron-positron and hadron collider could deliver precision measurements on the Higgs, electroweak bosons, and top quark while searching for physics beyond the Standard Model.
Requiring exotic Higgs decays to two or three light singlet scalars not to exceed the SM Higgs width yields cos θ < 0.12-0.13 for m_φ < 40 GeV, with predicted rate limits Γ(h→φφ) < 0.06 MeV and Γ(h→φφφ) < 5×10^{-6} MeV under stronger mixing bounds.
citing papers explorer
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Nelson-Barr Models with Vector-Like Quark Doublets
Nelson-Barr models with vector-like quark doublets suppress hadronic CP violation to three loops via an accidental symmetry in the renormalizable theory, yielding phenomenologically viable solutions distinct from singlet-based models.
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Grand Unified Origin of Enhanced Scalar Couplings: Connecting Radiative Electroweak Symmetry Breaking to SO(10) Dynamics
SO(10) scalar threshold corrections generate the Higgs quartic enhancement factor k≈6 required by radiative electroweak symmetry breaking, placing the Landau pole at 1.5-2×10^16 GeV near the GUT scale.
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Cosmological collider signals of modular spontaneous CP breaking
Modular spontaneous CP breaking during inflation with the modulus as inflaton produces one-loop cosmological collider signals from SM fermions enhanced by chemical potentials, allowing probes of sub-Planckian modulus decay constants.
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The Higgs-top-$Z$ mass coincidence relation after NNLO matching
The pole-level ratio M_Z M_t / M_H² is 1.00362 ± 0.00261, consistent with an exact relation at 1.4 sigma, but the NNLO-matched MSbar version at the top scale deviates to 0.96714, requiring either a pole-level symmetry or a finite threshold factor of 1.034.
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Neutrino Mass, Vacuum Stability and Higgs Inflation with Vector-Like Quarks and a Single Right-Handed Neutrino
The Standard Model extended by n vector-like quarks and one right-handed neutrino stabilizes the Higgs quartic to the Planck scale, produces viable neutrino masses via Type-I seesaw, and yields inflationary observables n_s and r consistent with Planck and ACT data.
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Good flavor search in SU(5): a machine learning approach
Machine learning optimization of a generalized SU(5) parameter y finds y ≈ 0.8 produces the closest match to the original model while resolving the fermion mass discrepancy.
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Before the Bang: Wormholes at the Dawn of the Universe
Euclidean wormholes enlarge the semiclassical initial-condition landscape for the universe in a physically rich manner that aligns with holographic expectations and supports early-universe model building.
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Possible mixing between elementary and bound state fields in the $t\bar{t}$ production excess at the LHC
Mixing angle between toponium and elementary field Ψ is constrained to |θ| ≤ 13° (minimal model) or |θ| ≤ 1° (2HDM Type II/Y) to fit CMS ttbar excess under MPP.
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Future Circular Collider Feasibility Study Report: Volume 1, Physics, Experiments, Detectors
The FCC feasibility study describes how a staged electron-positron and hadron collider could deliver precision measurements on the Higgs, electroweak bosons, and top quark while searching for physics beyond the Standard Model.
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Constraints on a Light Singlet Scalar from Combined Exotic Higgs Decays
Requiring exotic Higgs decays to two or three light singlet scalars not to exceed the SM Higgs width yields cos θ < 0.12-0.13 for m_φ < 40 GeV, with predicted rate limits Γ(h→φφ) < 0.06 MeV and Γ(h→φφφ) < 5×10^{-6} MeV under stronger mixing bounds.