Results 41 to 50 of about 825,342 (148)
Inverse seesaw and dark matter in a gauged B − L extension with flavour symmetry
Journal of High Energy Physics, 2018 We propose a model which generates neutrino masses by the inverse seesaw mechanism, provides a viable dark matter candidate and explains the muon (g−2) anomaly.
Anirban Biswas +2 more
doaj +1 more source
Phenomenology of the generalised scotogenic model with fermionic dark matter
Journal of High Energy Physics, 2018 We study a simple extension of the Standard Model that accounts for neutrino masses and dark matter. The Standard Model is augmented by two Higgs doublets and one Dirac singlet fermion, all charged under a new dark global symmetry.
Claudia Hagedorn +3 more
doaj +1 more source
QCD axion window and false vacuum Higgs inflation
Journal of High Energy Physics, 2020 The abundance of the QCD axion is known to be suppressed if the Hubble parameter during inflation, H inf , is lower than the QCD scale, and if the inflation lasts sufficiently long.
Hiroki Matsui +2 more
doaj +1 more source
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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Phenomenological guide to physics beyond the Standard Model
, 2005 Various aspects of physics beyond the Standard Model are discussed from the perspective of the fantastic phenomenological success of the Standard Model, its simplicity and predictive powerComment: Lectures given at the Cargese School on String Theory ...
Pokorski, Stefan
core +1 more source
Leptogenesis from a U(1) D resonance
Journal of High Energy Physics, 2020 We propose a novel mechanism to realize leptogenesis through the Breit- Wigner resonance of a dark U(1) D gauge boson Z D , which mediates lepton number vi- olating annihilations of dark matter (DM) in the context of the scotogenic model with a U(1) D ...
Eung Jin Chun +2 more
doaj +1 more source
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
doaj +1 more source
MeV-scale seesaw and leptogenesis
Journal of High Energy Physics, 2021 We study the type-I seesaw model with three right-handed neutrinos and Majorana masses below the pion mass. In this mass range, the model parameter space is not only strongly constrained by the requirement to explain the light neutrino masses, but also ...
Valerie Domcke +3 more
doaj +1 more source
Explore Physics Beyond the Standard Model with GLAST
, 2007 We give an overview of the possibility of GLAST to explore theories beyond the Standard Model of particle physics. Among the wide taxonomy we will focus in particular on low scale supersymmetry and theories with extra space-time dimensions.
Lionetto, A.
core +1 more source
A Real CKM Matrix and Physics Beyond the Standard Model [PDF]
, 1999 We study the possible existence of a real Cabibbo-Kobayashi-Maskawa (CKM) matrix, with CP violation originating from physics beyond the standard model (SM). We show that present experimental data allow for a real CKM matrix provided that new physics also
Bernabéu +12 more
core +3 more sources