Results 51 to 60 of about 1,263 (166)
Five dimensional $$SU(5) \times U(1)_\textrm{PQ}$$ S U ( 5 ) × U ( 1 ) PQ grand unification
European Physical Journal C: Particles and FieldsWe propose a grand unified model in five dimensions that addresses the strong CP problem. In this framework, the boundary conditions that break the unified gauge group into the Standard Model gauge group simultaneously explain the mass splitting of the ...
Norimi Yokozaki, Junhao Zhu
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Yukawa unification with four Higgs doublets in supersymmetric GUT
Physics Letters B, 2019 We discuss the Yukawa coupling unification, which can emerge in the grand unified theory, in the context of scenarios with more than one pair of Higgs doublet since the current LHC constraint has become a problem for the Yukawa unification scenarios with
Bhaskar Dutta, Yukihiro Mimura
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Small instantons and the post-inflationary QCD axion in a special product GUT
Journal of High Energy PhysicsWe present a new framework of grand unification that is equipped with an axion solution to the strong CP problem without a domain wall problem when the Peccei-Quinn (PQ) symmetry is spontaneously broken after inflation.
Shihwen Hor +3 more
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A realistic theory of E6 unification through novel intermediate symmetries
Journal of High Energy PhysicsWe propose a non-supersymmetric E6 GUT with the scalar sector consisting of 650 ⨁ 351′ ⨁ 27. Making use of the first representation for the initial symmetry breaking to an intermediate stage, and the latter two representations for second-stage breaking ...
K. S. Babu, Borut Bajc, Vasja Susič
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The gauge coupling evolutions of an SU(8) theory with the maximally symmetry breaking pattern
Journal of High Energy PhysicsWe study the renormalizable group equations (RGEs) of the extended strong and weak gauge couplings in an SU(8) theory, where three-generational SM fermions are non-trivially embedded.
Ning Chen +3 more
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A modular SU (5) littlest seesaw
Journal of High Energy PhysicsWe extend the littlest modular seesaw to a Grand Unified scenario based on SU (5) endowed with three modular S 4 symmetries. We leverage symmetry protected zeroes in the leptonic and down quark sectors to suppress deviations to the littlest modular ...
Ivo de Medeiros Varzielas +2 more
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Spontaneous CP violation and leptogenesis in SO(10)
Journal of High Energy PhysicsWe present a renormalizable SO(10) grand unified theory with a minimal Yukawa sector consisting of a 126 H , a real 10 H and a real 120 H , where CP violation has a spontaneous origin.
K. S. Babu, Chee Sheng Fong, Shaikh Saad
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Search for Z′, vacuum (in)stability and hints of high-energy structures
EPJ Web of Conferences, 2016 We study the high-energy behaviour of a class of anomaly-free abelian extensions of the Standard Model. We focus on the interplay among the phenomenological characterisation of the model and the use of precise renormalisation group methods.
Accomando Elena +5 more
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Self-Similar Symmetry Model and Cosmic Microwave Background
Frontiers in Applied Mathematics and Statistics, 2016 In this paper, we present the self-similar symmetry (SSS) model that describes the hierarchical structure of the universe. The model is based on the concept of self-similarity, which explains the symmetry of the cosmic microwave background (CMB).
Tomohide eSonoda
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