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70 research outcomes, page 1 of 7
  • publication . Article . Preprint . 2019
    Open Access
    Authors:
    Ye-Ling Zhou; Lukas Heinrich; Jessica Turner; H. Schulz;
    Publisher: Springer Science and Business Media LLC
    Project: NSF | Elementary Particle Physi... (1505463), NSF | Collaborative Research: S... (1450310), RCUK | Exploring the limits of t... (ST/L000296/1), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    The observed pattern of mixing in the neutrino sector may be explained by the presence of a non-Abelian, discrete flavour symmetry broken into residual subgroups at low energies. Many flavour models require the presence of Standard Model singlet scalars which can prompt...

  • publication . Article . Preprint . Other literature type . 2018
    Open Access English
    Authors:
    Ye-Ling Zhou; Stephen F. King;
    Publisher: Springer
    Project: RCUK | Exploring the limits of t... (ST/L000296/1), EC | NUMASS (617143), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    We discuss the breaking of $SO(3)$ down to finite family symmetries such as $A_4$, $S_4$ and $A_5$ using supersymmetric potentials for the first time. We analyse in detail the case of supersymmetric $A_4$ and its finite subgroups $Z_3$ and $Z_2$. We then propose a super...

  • publication . Article . Preprint . 2017
    Open Access English
    Authors:
    Stephen F. King; Patrick Otto Ludl;
    Project: RCUK | Exploring the limits of t... (ST/L000296/1), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    We propose supersymmetric Majoron inflation in which the Majoron field $\Phi$ responsible for generating right-handed neutrino masses may also be suitable for giving low scale "hilltop" inflation, with a discrete lepton number $Z_N$ spontaneously broken at the end of in...

  • publication . Article . Other literature type . Preprint . 2017
    Open Access English
    Authors:
    Stephen F. King;
    Publisher: Springer/SISSA
    Project: RCUK | Exploring the limits of t... (ST/L000296/1), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    We show how any flavour conserving $Z'$ model can be made flavour violating and non-universal by introducing mass mixing of quarks and leptons with a fourth family of vector-like fermions with non-universal $Z'$ couplings. After developing a general formalism, we focus ...

  • publication . Article . Preprint . Other literature type . 2018
    Open Access English
    Authors:
    Stephen F. King; Fredrik Björkeroth; Eung Jin Chun;
    Project: RCUK | Exploring the limits of t... (ST/L000296/1), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    Comment: v1: 27 pages. v2: version to appear in JHEP. 31 pages. Extended discussion on axion basis, updated mixing bounds

  • publication . Article . Preprint . 2018
    Open Access English
    Authors:
    J. Peter Millington; P. S. Bhupal Dev; Björn Garbrecht; Stéphane Lavignac; Pasquale Di Bari; Daniele Teresi;
    Publisher: World Scientific Publishing
    Project: RCUK | Exploring the limits of t... (ST/L000296/1), EC | InvisiblesPlus (690575), EC | ELUSIVES (674896)

    Comment: 69 pages, 8 figures. Chapter 1 of the review volume "Leptogenesis: Current Challenges for Model Building, Phenomenology and Non-Equilibrium Field Theory". Matches published version

  • publication . Article . Preprint . 2020
    Open Access
    Authors:
    Nick W. Prouse; Susana Molina Sedgwick; Stephen J. Parke; Stephen F. King;
    Publisher: American Physical Society (APS)
    Project: RCUK | Exploring the limits of t... (ST/L000296/1), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    This paper explores the effects of changes in matter density profiles on neutrino oscillation probabilities, and whether these could potentially be seen by the future Hyper-Kamiokande long-baseline oscillation experiment (T2HK). The analysis is extended to include the p...

  • publication . Preprint . 2019
    Open Access English
    Authors:
    Rose, Luigi Delle; Khalil, Shaaban; King, Simon J. D.; Moretti, Stefano;
    Project: EC | ELUSIVES (674896), RCUK | Exploring the limits of t... (ST/L000296/1), EC | NonMinimalHiggs (645722), 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 . Article . Preprint . 2017
    Open Access
    Authors:
    Stephen F. King; Francisco J. de Anda; Elena Perdomo; Fredrik Björkeroth;
    Publisher: Springer Science and Business Media LLC
    Project: EC | ELUSIVES (674896), RCUK | Exploring the limits of t... (ST/L000296/1), EC | InvisiblesPlus (690575)

    Comment: 22 pages, 4 figures. Matches published version

  • publication . Preprint . Article . 2019
    Open Access English
    Authors:
    Ye-Ling Zhou; Maura Ramirez-Quezada; Shyam Balaji;
    Project: RCUK | Exploring the limits of t... (ST/L000296/1), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    The radiative decay of neutral fermions has been studied for decades but $CP$ violation induced within such a paradigm has evaded attention. $CP$ violation in these processes can produce an asymmetry between circularly polarised directions of the radiated photons and pr...

70 research outcomes, page 1 of 7