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Neutrinos properties beyond the Standard Model [PDF]
Nuclear Physics B - Proceedings Supplements, 1998 The present observational status of neutrino physics is sketched, with emphasis on the hints that follow from solar and atmospheric neutrino observations, as well as dark matter.
openaire +3 more sources
Ultraviolet completion of a composite asymmetric dark matter model with a dark photon portal
Journal of High Energy Physics, 2019 Composite asymmetric dark matter scenarios naturally explain why the dark matter mass density is comparable with the visible matter mass density. Such scenarios generically require some entropy transfer mechanism below the composite scale; otherwise ...
Masahiro Ibe +4 more
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Journal of High Energy Physics, 2021 We propose a baryogenenesis mechanism that uses a rotating condensate of a Peccei-Quinn (PQ) symmetry breaking field and the dimension-five operator that gives Majorana neutrino masses.
Raymond T. Co +4 more
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Dark matter in E 6 Grand unification
Journal of High Energy Physics, 2018 We discuss fermionic dark matter in non-supersymmetric E 6 Grand Unification. The fundamental representation of E 6 contains, in addition to the standard model fermions, exotic fermions and we argue that one of them is a viable, interesting dark matter ...
Jakob Schwichtenberg
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Nucleation is more than critical: A case study of the electroweak phase transition in the NMSSM
Journal of High Energy Physics, 2021 Electroweak baryogenesis is an attractive mechanism to generate the baryon asymmetry of the Universe via a strong first order electroweak phase transition.
Sebastian Baum +4 more
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Beyond the Standard Model for Hillwalkers
, 1998 In the first lecture, the Standard Model is reviewed, with the aim of seeing how its successes constrain possible extensions, the significance of the apparently low Higgs mass indicated by precision electroweak experiments is discussed, and defects of ...
Ellis, John
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Electroweak phase transition beyond the Standard Model [PDF]
, 2000 Standard theories of electroweak interactions are based on the concept of a gauge symmetry broken by the Higgs mechanism. If they are placed in an environment with a sufficiently high temperature, the symmetry gets restored.
Laine, M.
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Yukawa ratio predictions in non-renormalizable SO(10) GUT models
Journal of High Energy Physics, 2020 Since SO(10) GUTs unify all fermions of the Standard Model plus a right-chiral neutrino in a representation 16 per family, they have the potential to be maximally predictive regarding the ratios between the masses (or Yukawa couplings) of different ...
Stefan Antusch +2 more
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Gravitational waves and dark photon dark matter from axion rotations
Journal of High Energy Physics, 2021 An axion rotating in field space can produce dark photons in the early universe via tachyonic instability. This explosive particle production creates a background of stochastic gravitational waves that may be visible at pulsar timing arrays or other ...
Raymond T. Co +2 more
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Axion predictions in SO(10) × U(1)PQ models
Journal of High Energy Physics, 2018 Non-supersymmetric Grand Unified SO(10) × U(1)PQ models have all the ingredients to solve several fundamental problems of particle physics and cosmology — neutrino masses and mixing, baryogenesis, the non-observation of strong CP violation, dark matter ...
Anne Ernst +2 more
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