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9 research outcomes, page 1 of 1
  • publication . Article . 2018
    Open Access English
    Authors:
    Stephen F King;
    Project: EC | NonMinimalHiggs (645722), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    We study and compare various Z′ models arising from SO(10), focusing in particular on the Abelian subgroup U(1)R×U(1)B-L, broken at the TeV scale to Standard Model hypercharge U(1)Y. The gauge group U(1)R×U(1)B-L, which is equivalent to the U(1)Y×U(1)χ in a different ba...

  • publication . Article . Other literature type . Preprint . 2017
    Open Access English
    Authors:
    Ellwanger, Ulrich;
    Publisher: HAL CCSD
    Project: EC | ELUSIVES (674896), EC | NonMinimalHiggs (645722), EC | HIGGSTOOLS (316704), EC | InvisiblesPlus (690575)

    Comment: 16 pages, 2 figures, added discussion on the remaining fine-tuning

  • publication . Preprint . 2019
    Open Access English
    Authors:
    Rose, Luigi Delle; Khalil, Shaaban; King, Simon J. D.; Moretti, Stefano;
    Project: EC | NonMinimalHiggs (645722), RCUK | Exploring the limits of t... (ST/L000296/1), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    We consider the possibility to explain the recent $R_K$ and $R_{K ^*}$ anomalies in a 2-Higgs Doublet Model, known as Aligned, combined with a low scale seesaw mechanism generating light neutrino masses and mixings. In this class of models, a large Yukawa coupling allow...

  • publication . Preprint . Article . Other literature type . 2019
    Open Access English
    Authors:
    Luigi Delle Rose; Shaaban Khalil; Simon J. D. King; Stefano Moretti; Ahmed M. Thabt;
    Project: EC | ELUSIVES (674896), EC | NonMinimalHiggs (645722), EC | InvisiblesPlus (690575)

    In the context of a gauge invariant, non-anomalous and family-dependent (non-universal) $U(1)'$ extension of the Standard Model, wherein a new high scale mechanism generates masses and couplings for the first two fermion generations and the standard Higgs mechanism does...

  • publication . Preprint . Article . Other literature type . 2018
    Open Access English
    Authors:
    J. Hernandez-Sanchez; Venus Keus; Dorota Sokolowska;
    Project: EC | ELUSIVES (674896), EC | NonMinimalHiggs (645722), AKA | The Higgs Boson and the C... (274503), RCUK | Exploring the limits of t... (ST/L000296/1), EC | InvisiblesPlus (690575)

    Comment: The version appearing in JHEP

  • publication . Article . 2020
    Open Access English
    Authors:
    Rose, Luigi Delle; Khalil, Shaaban; King, Simon J. D.; Moretti, Stefano;
    Publisher: APS
    Project: EC | NonMinimalHiggs (645722), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    We consider the possibility of explaining the recent <math><msub><mi>R</mi><mi>K</mi></msub></math> and <math><msub><mi>R</mi><msup><mi>K</mi><mo>*</mo></msup></msub></math> anomalies in a two-Higgs doublet model, known as aligned, combined with a low-scale seesaw mecha...

  • publication . Article . Preprint . 2017
    Open Access English
    Authors:
    Ellwanger, Ulrich; Rodríguez-Vázquez, Matías;
    Publisher: HAL CCSD
    Project: EC | HIGGSTOOLS (316704), EC | ELUSIVES (674896), EC | NonMinimalHiggs (645722), EC | InvisiblesPlus (690575), EC | INVISIBLES (289442)

    Models with extended Higgs sectors can contain several additional Higgs states, heavier or lighter than the SM Higgs boson. The couplings of lighter extra states to SM particles can be strongly reduced, leading to small cross sections for their direct production. Heavie...

  • publication . Article . Other literature type . Preprint . 2016
    Open Access English
    Authors:
    Venus Keus; J. Hernandez-Sanchez; Stephen F King;
    Project: AKA | Quasikonformality Beyond ... (267842), EC | ELUSIVES (674896), RCUK | Exploring the limits of t... (ST/L000296/1), EC | NonMinimalHiggs (645722), EC | InvisiblesPlus (690575)

    We study an extension of the Standard Model (SM) in which two copies of the SM scalar $SU(2)$ doublet which do not acquire a Vacuum Expectation Value (VEV), and hence are \textit{inert}, are added to the scalar sector. We allow for CP-violation in the \textit{inert} sec...

  • publication . Preprint . Article . Review . 2019
    Open Access English
    Authors:
    Luigi Delle Rose; Luigi Delle Rose; Shaaban Khalil; Simon J. D. King; Simon J. D. King; Stefano Moretti; Stefano Moretti;
    Project: EC | ELUSIVES (674896), EC | NonMinimalHiggs (645722), EC | InvisiblesPlus (690575), RCUK | Exploring the limits of t... (ST/L000296/1)

    We consider several extensions of the Standard Model (SM) which can explain the anomalies observed by the Atomki collaboration in the decay of excited states of Beryllium via a new boson with a mass around 17 MeV yielding $e^+e^-$ pairs. We show how both spin-0 and 1 so...

9 research outcomes, page 1 of 1
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