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Sequentially loop-generated quark and lepton mass hierarchies in an extended Inert Higgs Doublet model

Hernández, A. E.Cárcamo ; Kovalenko, Sergey ; Pasechnik, Roman LU and Schmidt, Ivan (2019) In Journal of High Energy Physics 2019(6).
Abstract

Extended scalar and fermion sectors offer new opportunities for generating the observed strong hierarchies in the fermion mass and mixing patterns of the Standard Model (SM). In this work, we elaborate on the prospects of a particular extension of the Inert Higgs doublet model where the SM hierarchies are generated sequentially by radiative virtual corrections in a fully renormalisable way, i.e. without adding any non-renormalisable Yukawa terms or soft-breaking operators to the scalar potential. Our model has a potential to explain the recently observed RK and RK∗ anomalies, thanks to the non universal U1X assignments of the fermionic fields that yield non universal Z′ couplings to fermions. We... (More)

Extended scalar and fermion sectors offer new opportunities for generating the observed strong hierarchies in the fermion mass and mixing patterns of the Standard Model (SM). In this work, we elaborate on the prospects of a particular extension of the Inert Higgs doublet model where the SM hierarchies are generated sequentially by radiative virtual corrections in a fully renormalisable way, i.e. without adding any non-renormalisable Yukawa terms or soft-breaking operators to the scalar potential. Our model has a potential to explain the recently observed RK and RK∗ anomalies, thanks to the non universal U1X assignments of the fermionic fields that yield non universal Z′ couplings to fermions. We explicitly demonstrate the power of this model for generating the realistic quark, lepton and neutrino mass spectra. In particular, we show that due to the presence of both continuous and discrete family symmetries in the considered framework, the top quark acquires a tree-level mass, lighter quarks and leptons get their masses at one- and two-loop order, while neutrino masses are generated at three-loop level. The minimal field content, particle spectra and scalar potential of this model are discussed in detail.

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author
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organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Beyond Standard Model, Discrete Symmetries, Neutrino Physics, Quark Masses and SM Parameters
in
Journal of High Energy Physics
volume
2019
issue
6
article number
56
publisher
Springer
external identifiers
  • scopus:85067349724
ISSN
1029-8479
DOI
10.1007/JHEP06(2019)056
language
English
LU publication?
yes
id
b7caeffa-1e9d-47e9-a421-2da2dd9e467e
date added to LUP
2019-07-01 04:45:21
date last changed
2024-04-16 15:03:02
@article{b7caeffa-1e9d-47e9-a421-2da2dd9e467e,
  abstract     = {{<p>Extended scalar and fermion sectors offer new opportunities for generating the observed strong hierarchies in the fermion mass and mixing patterns of the Standard Model (SM). In this work, we elaborate on the prospects of a particular extension of the Inert Higgs doublet model where the SM hierarchies are generated sequentially by radiative virtual corrections in a fully renormalisable way, i.e. without adding any non-renormalisable Yukawa terms or soft-breaking operators to the scalar potential. Our model has a potential to explain the recently observed R<sub>K</sub> and R<sub>K∗</sub> anomalies, thanks to the non universal U<sub>1X</sub> assignments of the fermionic fields that yield non universal Z′ couplings to fermions. We explicitly demonstrate the power of this model for generating the realistic quark, lepton and neutrino mass spectra. In particular, we show that due to the presence of both continuous and discrete family symmetries in the considered framework, the top quark acquires a tree-level mass, lighter quarks and leptons get their masses at one- and two-loop order, while neutrino masses are generated at three-loop level. The minimal field content, particle spectra and scalar potential of this model are discussed in detail.</p>}},
  author       = {{Hernández, A. E.Cárcamo and Kovalenko, Sergey and Pasechnik, Roman and Schmidt, Ivan}},
  issn         = {{1029-8479}},
  keywords     = {{Beyond Standard Model; Discrete Symmetries; Neutrino Physics; Quark Masses and SM Parameters}},
  language     = {{eng}},
  month        = {{06}},
  number       = {{6}},
  publisher    = {{Springer}},
  series       = {{Journal of High Energy Physics}},
  title        = {{Sequentially loop-generated quark and lepton mass hierarchies in an extended Inert Higgs Doublet model}},
  url          = {{http://dx.doi.org/10.1007/JHEP06(2019)056}},
  doi          = {{10.1007/JHEP06(2019)056}},
  volume       = {{2019}},
  year         = {{2019}},
}