Results 11 to 20 of about 1,383 (257)
Axion couplings in grand unified theories
Journal of High Energy Physics, 2022 We show that the couplings of axions to gauge bosons are highly restricted in Grand Unified Theories where the standard model is embedded in a simple 4D gauge group.
Prateek Agrawal, Michael Nee, Mario Reig
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Systematic classification of aGUT models in five dimensions: the SU(N) kinship
Journal of High Energy Physics, 2023 Asymptotic Grand Unification theories (aGUTs) in five dimensions provide a valid alternative to standard quantitative unification. We define the pathway towards viable models starting from a general unified bulk gauge symmetry.
Giacomo Cacciapaglia
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Model building by coset space dimensional reduction scheme using eight-dimensional coset spaces
Journal of High Energy Physics, 2023 We investigate the twelve-dimensional gauge-Higgs unification models with an eight- dimensional coset space as the extra space. For each model, we apply the coset space dimensional reduction procedure and examine the particle contents of the resulting ...
Kento Asai +4 more
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SU(5) grand unification and W-boson mass
Physics Letters B, 2023 A realistic extension of the minimal SU(5) theory consisting of the addition of an adjoint fermion is known to predict light real fermion and scalar weak triplets, potentially accessible at the LHC.
Goran Senjanović, Michael Zantedeschi
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Asymmetric orbifolds and grand unification [PDF]
Physical Review D, 1996 We generalize the rules for the free fermionic string construction to include other asymmetric orbifolds with world-sheet bosons. We use these rules to construct various grand unified string models that involve level-3 current algebras. We present the explicit construction of three classes of 3-chiral-family grand unified models in the heterotic string
Kakushadze, Zurab, Tye, Henry
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W boson mass anomaly and grand unification
Physics Letters B, 2022 It is known that the recently reported shift of the W boson mass can be easily explained by an SU(2)L triplet Higgs boson with a zero hypercharge if it obtains a vacuum expectation value (VEV) of O(1) GeV.
Jason L. Evans +2 more
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Family unification in special grand unification [PDF]
Progress of Theoretical and Experimental Physics, 2018 12 pages, 3 tables, no figures; one paragraph and some references added, typos corrected.
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Special grand unification [PDF]
Progress of Theoretical and Experimental Physics, 2017 We discuss new-type grand unified theories based on grand unified groups broken to their special subgroups as well as their regular subgroups. In the framework, when we construct four-dimensional (4D) chiral gauge theories, i.e., the Standard Model (SM), 4D gauge anomaly cancellation restricts the minimal number of generations of the 4D SM Weyl ...
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Effective Higgs theories in supersymmetric grand unification
European Physical Journal C: Particles and Fields, 2017 The effective Higgs theories at the TeV scale in supersymmetric $$\mathrm{SU}(5)$$ SU ( 5 ) grand unification models are systematically derived. Restricted to extensions on $$\mathbf {5}_{H}$$ 5 H containing the Higgs sector we show that only two types ...
Sibo Zheng
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331 models and grand unification: From minimal SU(5) to minimal SU(6)
Physics Letters B, 2016 We consider the possibility of grand unification of the SU(3)c⊗SU(3)L⊗U(1)X model in an SU(6) gauge unification group. Two possibilities arise. Unlike other conventional grand unified theories, in SU(6) one can embed the 331 model as a subgroup such that
Frank F. Deppisch +4 more
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