Browsing Research and Publications - Department of Physics & Astronomy by Subject "Particles & Fields"

Browsing Research and Publications - Department of Physics & Astronomy by Subject "Particles & Fields"

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  • Okada, Nobuchika (2017-12-26)
    We propose a minimal dark matter (MDM) scenario in the context of a simple gauge-Higgs unification (GHU) model based on the gauge group SU(3) × U(1)′ in five-dimensional Minkowski space with a compactification of the fifth ...
  • Chaney, A.; Stern, Allen (American Physical Society, 2017-02)
    Four-dimensional manifolds with changing signature are obtained by taking the large N limit of fuzzy CP2 solutions to a Lorentzian matrix model. The regions of Lorentzian signature give toy models of closed universes which ...
  • Okada, Nobuchika (2016-07-05)
    We investigate the phenomenology of a model based on the SU(3)⌄c × SU(3)⌄L × U(1)ₓ gauge theory, the so-called 331 model. In particular, we focus on the Higgs sector of the model which is composed of three SU(3)⌄L triplet ...
  • Okada, Nobuchika (2017-03-31)
    Inflection-point inflation is an interesting possibility to realize a successful slow-roll inflation when inflation is driven by a single scalar field, with its value during inflation below the Planck mass (ϕ⌄I ≲ M⌄P1). ...
  • Okada, Nobuchika (2018-07-30)
    We consider a supersymmetric SU(4)⌄c × SU(2)⌄L × SU(2)⌄R model with a minimal number of Higgs multiplets and Dirac and Majorana CP-violating phases in the neutrino flavor mixing matrix. The model incorporates the charged ...
  • Santander, Marcos (2019-02-13)
    Inelasticity, the fraction of a neutrino’s energy transferred to hadrons, is a quantity of interest in the study of astrophysical and atmospheric neutrino interactions at multi-TeV energies with IceCube. In this work, a ...
  • Okada, Nobuchika (2018-09-25)
    The U(1)⌄(B−L) gauge symmetry is a promising extension of the standard model of particle physics, which is supposed to be broken at some high energy scale. Associated with the U(1)⌄(B−L) gauge symmetry breaking, right-handed ...
  • Santander, Marcos (2018-04-12)
    As atmospheric neutrinos propagate through the Earth, vacuumlike oscillations are modified by Standard Model neutral- and charged-current interactions with electrons. Theories beyond the Standard Model introduce heavy, ...
  • Okada, Nobuchika (2018-09-04)
    The standard model (SM) supplemented by type II seesaw and a SM gauge-singlet scalar dark matter (DM) is a very simple framework to incorporate the observed neutrino oscillations and provide a plausible DM candidate. In ...
  • Okada, Nobuchika (2016-04-01)
    We consider a concise dark matter scenario in the minimal gauged B − L extension of the standard model (SM), where the global B − L (baryon number minus lepton number) symmetry in the SM is gauged, and three generations ...

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