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

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F19%3A00506049" target="_blank" >RIV/61389005:_____/19:00506049 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1007/JHEP06(2019)056" target="_blank" >https://doi.org/10.1007/JHEP06(2019)056</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1007/JHEP06(2019)056" target="_blank" >10.1007/JHEP06(2019)056</a>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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-K and R-K anomalies, thanks to the non universal U-1X 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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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-K and R-K anomalies, thanks to the non universal U-1X 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10303 - Particles and field physics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of High Energy Physics

ISSN

1029-8479

e-ISSN

—

Svazek periodika

2019

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

25

Strana od-do

056

Kód UT WoS článku

000471630100010

EID výsledku v databázi Scopus

2-s2.0-85067349724