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4 research outcomes, page 1 of 1
  • publication . Article . Other literature type . Preprint . 2019
    Open Access English
    Authors:
    P.P. Novichkov; J.T. Penedo; S.T. Petcov; A.V. Titov;
    Publisher: SpringerOpen
    Project: EC | ELUSIVES (674896), FCT | UID/FIS/00777/2013 (147214), EC | InvisiblesPlus (690575)

    The formalism of combined finite modular and generalised CP (gCP) symmetries for theories of flavour is developed. The corresponding consistency conditions for the two symmetry transformations acting on the modulus $\tau$ and on the matter fields are derived. The implic...

  • publication . Article . Preprint . Other literature type . 2018
    Open Access English
    Authors:
    Duarte Fontes; Jorge C. Romao; Joao Silva;
    Publisher: HAL CCSD
    Project: EC | ELUSIVES (674896), FCT | UID/FIS/00777/2013 (147214), EC | InvisiblesPlus (690575)

    We study the CP violating ZZZ vertex in the two-Higgs doublet model, which is a probe of a Jarlskog-type invariant in the extended Higgs sector. The form factor $f_4^Z$ is evaluated at one loop in a general $R_\xi$ gauge and its magnitude is estimated in the realistic p...

  • publication . Other literature type . Article . Preprint . 2018
    Open Access
    Authors:
    Biswajit Karmakar; Ivo de Medeiros Varzielas;
    Publisher: Springer Science and Business Media LLC
    Project: FCT | UID/FIS/00777/2013 (147214), RCUK | Exploring the limits of t... (ST/L000296/1), EC | ELUSIVES (674896), EC | InvisiblesPlus (690575)

    In an attempt to unfold (if any) a possible connection between two apparently uncorrelated sectors, namely neutrino and dark matter, we consider the type-I seesaw and a fermion singlet dark matter to start with. Our construction suggests that there exists a scalar field...

  • publication . Article . Preprint . 2017
    Open Access English
    Authors:
    Duarte Fontes; Jorge C. Romao; Joao Silva;
    Publisher: Springer Nature
    Project: EC | ELUSIVES (674896), FCT | UID/FIS/00777/2013 (147214), EC | InvisiblesPlus (690575)

    Comment: 24 pages

4 research outcomes, page 1 of 1
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