Results 31 to 40 of about 936,632 (291)
Journal of High Energy Physics, 2017 We consider two theoretical scenarios, each including a ℤ 2-odd sector and leading to an elementary dark matter candidate. The first one is a variant of the Type-III seesaw model where one lepton triplet is ℤ 2-odd, together with a heavy sterile neutrino.
Avirup Ghosh +2 more
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Dark matter and lepton flavour phenomenology in a singlet-doublet scotogenic model
Journal of High Energy Physics, 2021 We study the dark matter phenomenology of scotogenic frameworks through a rather illustrative model extending the Standard Model by scalar and fermionic singlets and doublets.
Maud Sarazin +2 more
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Journal of High Energy Physics, 2018 We confront recent experimental results on neutrino mixing parameters with the requirements from strong thermal SO(10)-inspired leptogenesis, where the asymmetry is produced from next-to-lightest right-handed neutrinos N 2 independently of the initial ...
Marco Chianese, Pasquale Di Bari
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Di-Higgs production in the 4b channel and gravitational wave complementarity
Journal of High Energy Physics, 2020 We present a complementarity study of gravitational waves and double Higgs production in the 4b channel, exploring the gauge singlet scalar extension of the SM.
Alexandre Alves +4 more
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Gravitational tests of electroweak relaxation
Journal of High Energy Physics, 2021 We consider a scenario in which the electroweak scale is stabilized via the relaxion mechanism during inflation, focussing on the case in which the back-reaction potential is generated by the confinement of new strongly interacting vector-like fermions ...
Daniele Barducci +2 more
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Probing physics beyond the standard model from lepton sector [PDF]
, 2002 In this review we discuss physics of the lepton sector, the anomalous dipole moment of muon, the charged lepton-flavor violation, and the electric dipole moments of charged leptons, from viewpoints of the minimal supersymmetric standard model and the ...
Hisano, J.
core +2 more sources
Minimally extended left-right symmetric model for dark matter with U(1) portal
Journal of High Energy Physics, 2018 A minimal extension of the left-right symmetric model for neutrino masses that includes a vector-like singlet fermion dark matter (DM) is presented with the DM connected to the visible sector via a gauged U(1) portal.
M. J. Neves +3 more
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Journal of High Energy Physics, 2020 We show the presence of a potentially detectable gamma-ray line in the Fermi Galactic center excess in light of the secluded (vector) dark matter (DM) model in which the hidden scalar, nearly degenerate with DM in mass, mediates the interaction of the ...
Kwei-Chou Yang
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Universal Unitarity Triangle and Physics Beyond the Standard Model [PDF]
, 2000 We make the simple observation that there exists a universal unitarity triangle for all models, like the SM, the Two Higgs Doublet Models I and II and the MSSM with minimal flavour violation, that do not have any new operators beyond those present in the
Buras, A. J. +4 more
core +2 more sources
MeV neutrino dark matter: relic density, lepton flavour violation and electron recoil
Journal of High Energy Physics, 2019 Right-handed neutrinos with MeV to GeV mass are very promising candidates for dark matter (DM). Not only can they solve the missing satellite puzzle, the cusp-core problem of inner DM density profiles, and the too-big-to fail problem, i.e.
Juri Fiaschi +4 more
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