Totally asymptotically free trinification

Pelaggi, Giulio Maria; Струмиа, Алессандро; Vignali, Saverio

doi:10.1007/jhep08(2015)130

Cited by 45 publications

(61 citation statements)

References 37 publications

(71 reference statements)

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“…The scenario discussed here is not the only option to achieve differing left and right gauge couplings at the TeV scale. Other possibilities are for example explored in [30,31].…”

Section: Embedding In So(10) and Gl/grmentioning

confidence: 99%

Reconciling the 2 TeV excesses at the LHC in a linear seesaw left-right model

et al. 2016

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We interpret the 2 TeV excesses at the LHC in a left-right symmetric model with Higgs doublets and spontaneous D-parity violation. The light neutrino masses are understood via a linear seesaw, suppressed by a high D-parity breaking scale, and the heavy neutrinos have a pseudo-Dirac character. In addition, with a suppressed right-handed gauge coupling gR/gL ≈ 0.6 in an SO(10) embedding, we can thereby interpret the observed eejj excess at CMS. We show that it can be reconciled with the diboson and dijet excesses within a simplified scenario based on our model. Moreover, we find that the mixing between the light and heavy neutrinos can be potentially large which would induce dominant non-standard contributions to neutrinoless double beta decay via long-range λ and η neutrino exchange.

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“…The scenario discussed here is not the only option to achieve differing left and right gauge couplings at the TeV scale. Other possibilities are for example explored in [30,31].…”

Section: Embedding In So(10) and Gl/grmentioning

confidence: 99%

Reconciling the 2 TeV excesses at the LHC in a linear seesaw left-right model

et al. 2016

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“…The Quantum Field Theory (QFT) part can have this property. Realistic TeV-scale extensions of the Standard Model (SM) can be asymptotically free [23,24], and it is not known whether the SM itself can be asymptotically safe, in a non-perturbative regime [25]. The gravitational coupling f 2 is asymptotically free.…”

Section: Introductionmentioning

confidence: 99%

Agravity up to infinite energy

2018

Self Cite

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The self-interactions of the conformal mode of the graviton are controlled, in dimensionless gravity theories (agravity), by a coupling f 0 that is not asymptotically free. We show that, nevertheless, agravity can be a complete theory valid up to infinite energy. When f 0 grows to large values, the conformal mode of the graviton decouples from the rest of the theory and does not hit any Landau pole provided that scalars are asymptotically conformally coupled and all other couplings approach fixed points. Then agravity can flow to conformal gravity at infinite energy. We identify scenarios where the Higgs mass does not receive unnaturally large physical corrections. We also show a useful equivalence between agravity and conformal gravity plus two extra conformally coupled scalars, and we give a simpler form for the renormalization group equations of dimensionless couplings as well as of massive parameters in the presence of the most general matter sector.

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“…In essence, this can fix the Higgs-to-gauge-boson mass ratio. So far, a concrete model building has not been satisfactory, as no unequivocally convincing model sufficiently similar to the standard model has been identified, though the search is ongoing, see, e.g., [33][34][35][36].…”

Section: Introductionmentioning

confidence: 99%

Non-Abelian Higgs models: Paving the way for asymptotic freedom

Gies¹,

Zambelli²

2017

Phys. Rev. D

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Asymptotically free renormalization group trajectories can be constructed in nonabelian Higgs models with the aid of generalized boundary conditions imposed on the renormalized action. We detail this construction within the languages of simple low-order perturbation theory, effective field theory, as well as modern functional renormalization group equations. We construct a family of explicit scaling solutions using a controlled weak-coupling expansion in the ultraviolet, and obtain a standard Wilsonian RG relevance classification of perturbations about scaling solutions. We obtain global information about the quasi-fixed function for the scalar potential by means of analytic asymptotic expansions and numerical shooting methods. Further analytical evidence for such asymptotically free theories is provided in the large-N limit. We estimate the long-range properties of these theories, and identify initial/boundary conditions giving rise to a conventional Higgs phase.

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Totally asymptotically free trinification

Cited by 45 publications

References 37 publications

Reconciling the 2 TeV excesses at the LHC in a linear seesaw left-right model

Reconciling the 2 TeV excesses at the LHC in a linear seesaw left-right model

Agravity up to infinite energy

Non-Abelian Higgs models: Paving the way for asymptotic freedom

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