Results 1 to 10 of about 132 (62)
New benchmark scenarios of electroweak baryogenesis in aligned two Higgs double models
Journal of High Energy Physics, 2022 We discuss electroweak baryogenesis in aligned two Higgs doublet models. It is known that in this model the severe constraint from the experimental results for the electron electric dipole moment can be avoided by destructive interference among CP ...
Kazuki Enomoto +2 more
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Neutrino mass and leptogenesis in a hybrid seesaw model with a spontaneously broken CP
Journal of High Energy Physics, 2023 We introduce a novel hybrid framework combining type I and type II seesaw models for neutrino mass where a complex vacuum expectation value of a singlet scalar field breaks CP spontaneously.
Rohan Pramanick +2 more
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Journal of High Energy Physics, 2022 The Type II Seesaw Mechanism provides a minimal framework to explain the neutrino masses involving the introduction of a single triplet Higgs to the Standard Model.
Neil D. Barrie +2 more
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Leptogenesis in SO(10) models with A4 modular symmetry
Journal of High Energy Physics, 2022 We study the prediction for leptogenesis in two renormalizable supersymmetric SO(10) × A 4 modular models in which the neutrino mass is dominantly generated by the type I seesaw mechanism. The evolution of the lepton asymmetries are described in terms of
Gui-Jun Ding +3 more
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Journal of High Energy Physics, 2022 Hawking evaporation of primordial black holes (PBHs) can facilitate the generation of matter-antimatter asymmetry. We focus on ultra-low mass PBHs that briefly dominate the universe and evaporate before the big bang nucleosynthesis.
Nilanjandev Bhaumik +2 more
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Interplay between dark matter and leptogenesis in a common framework
Journal of High Energy Physics, 2023 We consider the interplay between dark matter and leptogenesis in a common framework, where three right-handed neutrinos, one fermionic dark matter and two singlet scalars are introduced into the Standard Model.
XinXin Qi, Hao Sun
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Electroweak baryogenesis via top-charm mixing
Journal of High Energy Physics, 2023 We investigate a scenario of electroweak baryogenesis in the two Higgs doublet model with quark flavor mixing. In general, off-diagonal components of quark Yukawa interactions with additional Higgs bosons are strongly constrained by the data for flavor ...
Shinya Kanemura, Yushi Mura
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Observable r, gravitino dark matter, and non-thermal leptogenesis in no-scale supergravity
Journal of High Energy Physics, 2023 We analyse the shifted hybrid inflation in a no-scale supersymmetric SU(5) GUT model which naturally circumvents the monopole problem. The no-scale framework is derivable as the effective field theory of the supersymmetric (SUSY) compactifications of ...
Waqas Ahmed +3 more
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Advances in High Energy Physics, Volume 2012, Issue 1, 2012., 2012 Standard Model fails to explain neutrino oscillations, dark matter, and baryon asymmetry of the Universe. All these problems can be solved with three sterile neutrinos added to SM. Quite remarkably, if sterile neutrino masses are well below the electroweak scale, this modification—Neutrino Minimal Standard Model (νMSM)—can be tested experimentally.
S. N. Gninenko +3 more
wiley +1 more source
Journal of High Energy Physics, 2022 We propose a new mechanism to simultaneously explain the observed dark matter abundance and the baryon asymmetry of the Universe. The mechanism is based on the Filtered Dark Matter scenario, where dark matter particles acquire a large mass during a first-
Michael J. Baker +4 more
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