Results 51 to 60 of about 5,564 (231)
Modern Physics Letters A, 2011 Economical extensions of the Standard Model (SM), in which famous Davidson–Ibarra bound on the CP asymmetry relevant for leptogenesis may be significantly relaxed by the loop effects, comparing to predictions of the SM extended only by heavy right-handed neutrinos with hierarchical masses, are discussed.
openaire +3 more sources
Annals of Physics, 2011 57 pages, 11 figures; published version including erratum concerning Boltzmann limit for zero thermal ...
Anisimov, Alexey +3 more
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Type II Seesaw leptogenesis [PDF]
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.
N. D. Barrie, C. Han, H. Murayama
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Leptogenesis from low-energy CP violation in minimal left-right symmetric model
Nuclear Physics B, 2022 We perform a thermal unflavored leptogenesis analysis on minimal left-right symmetric models with discrete left-right symmetry identified as generalized parity or charge conjugation.
Xinyi Zhang, Jiang-Hao Yu, Bo-Qiang Ma
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Leptogenesis, primordial gravitational waves, and PBH-induced reheating [PDF]
Physical Review DWe explore the possibility of producing the observed matter-antimatter asymmetry of the Universe uniquely from the evaporation of primordial black holes (PBHs) that are formed in an inflaton-dominated background. Considering the inflaton (Ď•) to oscillate
Basabendu Barman +3 more
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Low scale leptogenesis and dark matter in the presence of primordial black holes [PDF]
Journal of Cosmology and Astroparticle Physics, 2021 We study the possibility of low scale leptogenesis along with dark matter (DM) in the presence of primordial black holes (PBH). For a common setup to study both leptogenesis and DM we consider the minimal scotogenic model which also explains light ...
Suruj Jyoti Das +2 more
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Theories relating baryon asymmetry and dark matter: a Mini review
Frontiers in Physics, 2014 The nature of dark matter and the origin of the baryon asymmetry are two of the deepest mysteries of modern particle physics. In the absence of hints regarding a possible solution to these mysteries, many approaches have been developed to tackle them ...
Stefano eMorisi, Sofiane M Boucenna
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Leptogenesis via bubble collisions [PDF]
Journal of Cosmology and Astroparticle PhysicsWe present a novel realization of leptogenesis from the decays of sterile (right-handed) neutrinos (RHNs) produced from runaway bubble collisions at a first order phase transition.
Martina Cataldi, B. Shakya
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Type III seesaw under $$A_4$$ modular symmetry with leptogenesis [PDF]
The European Physical Journal C, 2022 We make an attempt to study neutrino phenomenology in the framework of type-III seesaw by considering $$A_4$$ A 4 modular symmetry in the super-symmetric context. In addition, we have included a local $$U(1)_{B-L}$$ U ( 1 ) B - L
Priya Mishra +3 more
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Probing flavored regimes of leptogenesis with gravitational waves from cosmic strings [PDF]
Physical Review DCosmic strings radiate detectable gravitational waves in models featuring high-scale symmetry breaking, e.g., high-scale leptogenesis. In this Letter, for the first time, we show that different flavored regimes of high-scale leptogenesis can be tested ...
M. Chianese +4 more
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