publication . Article . Preprint . 2018

Reconciling B-meson decay anomalies with neutrino masses, dark matter and constraints from flavour violation

Girish Kumar; A. M. Teixeira; Chandan Hati; Jean Orloff;
Open Access English
  • Published: 01 Jan 2018 Journal: Journal of High Energy Physics, volume 2,018, issue 11 (eissn: 1029-8479, Copyright policy)
  • Country: France
Abstract
Motivated by an explanation of the $R_{K^{(*)}}$ anomalies, we propose a Standard Model extension via two scalar SU(2)$_L$ triplet leptoquarks and three generations of triplet Majorana fermions. The gauge group is reinforced by a $Z_2$ symmetry, ensuring the stability of the lightest $Z_2$-odd particle, which is a potentially viable dark matter candidate. Neutrino mass generation occurs radiatively (at the three-loop level), and leads to important constraints on the leptoquark couplings to leptons. We consider very generic textures for the flavour structure of the $h_1$ leptoquark Yukawa couplings, identifying classes of textures which succeed in saturating the ...
Persistent Identifiers
Subjects
arXiv: High Energy Physics::PhenomenologyHigh Energy Physics::ExperimentHigh Energy Physics::Lattice
free text keywords: Nuclear and High Energy Physics, Beyond Standard Model, Heavy Quark Physics, Neutrino Physics, K+ --> pi+ neutrino antineutrino, K+: semileptonic decay, B: semileptonic decay, B: branching ratio: ratio, B --> K lepton antilepton, B --> K*(892) lepton antilepton, K+: rare decay, neutrino: mass generation, symmetry: Z(2), fermion: new particle, fermion: triplet, fermion: Majorana, lepton: universality: violation, lepton: flavor: violation, coupling: Yukawa, leptoquark: coupling, new physics, leptoquark: scalar, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], High Energy Physics - Phenomenology, Physics, Particle physics, Neutrino, Dark matter, Gauge group, Meson, Leptoquark, Mass generation, MAJORANA, Lepton, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, lcsh:QC770-798
Funded by
EC| ELUSIVES
Project
ELUSIVES
The Elusives Enterprise: Asymmetries of the Invisible Universe
  • Funder: European Commission (EC)
  • Project Code: 674896
  • Funding stream: H2020 | MSCA-ITN-ETN
,
EC| InvisiblesPlus
Project
InvisiblesPlus
InvisiblesPlus
  • Funder: European Commission (EC)
  • Project Code: 690575
  • Funding stream: H2020 | MSCA-RISE
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