Unified interactions of leptons and hadrons

Fritzsch, Harald; Minkowski, Peter

doi:10.1016/0003-4916(75)90211-0

Cited by 1,735 publications

(1,290 citation statements)

References 37 publications

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“…This is because there are no exotic fermions in nontrivial representations of the algebra, and the fermionic matter sector is embedded in the anomaly-free 16 representation of SOð10Þ. 4 The orthogonal algebra SOð6Þ is not safe either, since it is isomorphic to SUð4Þ, which is unitary and thus not safe.…”

Section: B Anomaliesmentioning

confidence: 99%

Surveying the SO(10) model landscape: The left-right symmetric case

Deppisch¹,

Gonzalo²,

Gráf³

2017

Phys. Rev. D

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Grand unified theories (GUTs) are a very well motivated extensions of the Standard Model (SM), but the landscape of models and possibilities is overwhelming, and different patterns can lead to rather distinct phenomenologies. In this work we present a way to automatize the model building process, by considering a top to bottom approach that constructs viable and sensible theories from a small and controllable set of inputs at the high scale. By providing a GUT scale symmetry group and the field content, possible symmetry breaking paths are generated and checked for consistency, ensuring anomaly cancellation, SM embedding and gauge coupling unification. We emphasize the usefulness of this approach for the particular case of a nonsupersymmetric SO(10) model with an intermediate left-right symmetry, and we analyze how low-energy observables such as proton decay and lepton flavor violation might affect the generated model landscape.

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Section: B Anomaliesmentioning

confidence: 99%

Surveying the SO(10) model landscape: The left-right symmetric case

Deppisch¹,

Gonzalo²,

Gráf³

2017

Phys. Rev. D

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“…[12,14] according to which the Higgs doublet lives in the SUð4Þ=Spð4Þ coset, and the EW symmetry, SUð2Þ L × Uð1Þ Y , is embedded in SU (4).…”

Section: A Minimal Pati-salam Setupmentioning

confidence: 99%

“…The numerical analysis demonstrates that it is possible to find a viable parameter space satisfying all phenomenological constraints in this model. 4 …”

Section: Radiative Fermi Scalementioning

confidence: 99%

“…Two time-honored unification schemes stand out: the Georgi-Glashow [1] and the Pati-Salam [2]. The former minimally unifies color and electroweak (EW) symmetries in a gauge group such as SU (5) or SO (10) [3,4] and predicts gauge-mediated proton decay. The current lower bound on the proton lifetime, set by SuperKamiokande to τ > 10 34 y [5], translates into a lower bound on the unification scale of the order of ≳10 15 GeV, which is also the natural scale for the realization of type-I seesaw models [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

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Radiatively induced Fermi scale and unification

et al. 2016

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“…SO(10) Grand Unified Theories (GUTs) [2][3][4][5][6][7] have many especially attractive features. First, the full set of SM fermions of each generation together with a right-handed neutrino is embedded into a single 16 chiral representation of SO (10).…”

Section: Introductionmentioning

confidence: 99%

The ATLAS diboson resonance in non-supersymmetric SO(10)

Evans

Olive

Zheng

2016

J. High Energ. Phys.

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SO(10) grand unification accommodates intermediate gauge symmetries with which gauge coupling unification can be realized without supersymmetry. In this paper, we discuss the possibility that a new massive gauge boson associated with an intermediate gauge symmetry explains the excess observed in the diboson resonance search recently reported by the ATLAS experiment. The model we find has two intermediate symmetries,where the latter gauge group is broken at the TeV scale. This model achieves gauge coupling unification with a unification scale sufficiently high to avoid proton decay. In addition, this model provides a good dark matter candidates, whose stability is guaranteed by a Z 2 symmetry present after the spontaneous breaking of the intermediate gauge symmetries. We also discuss prospects for testing these models in the forthcoming LHC experiments and dark matter detection experiments.

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Unified interactions of leptons and hadrons

Cited by 1,735 publications

References 37 publications

Surveying the SO(10) model landscape: The left-right symmetric case

Surveying the SO(10) model landscape: The left-right symmetric case

Radiatively induced Fermi scale and unification

The ATLAS diboson resonance in non-supersymmetric SO(10)

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