Results 31 to 40 of about 5,564 (231)
Electromagnetic leptogenesis [PDF]
Physical Review D, 2008 6 pages, 6 figures; v2: some references added, minor change to discussion, accepted by ...
Bell, Nicole F. +2 more
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Rescuing high-scale leptogenesis using primordial black holes [PDF]
Physical Review D, 2022 We explore the interplay between light primordial black holes (PBH) and high-scale baryogenesis, with a particular emphasis on leptogenesis. We first review a generic baryogenesis scenario where a heavy particle, $X$, with mass, $M_X$, produced solely ...
N. Bernal +3 more
semanticscholar +1 more source
Scalar triplet leptogenesis with a CP violating phase
Nuclear Physics B, 2023 We study baryogenesis through leptogenesis via decay of triplet scalars embedded in the Standard Model. We consider two triplets scenario where the vacuum expectation value developed by one of the triplets is complex.
Sreerupa Chongdar, Sasmita Mishra
doaj +1 more source
Leptogenesis triggered by a first-order phase transition [PDF]
Journal of High Energy Physics, 2022 We propose a new scenario of leptogenesis, which is triggered by a first-order phase transition (FOPT). The right-handed neutrinos (RHNs) are massless in the old vacuum, while they acquire a mass in the new vacuum bubbles, and the mass gap is huge ...
Peisi Huang, Ke-Pan Xie
semanticscholar +1 more source
International Journal of Modern Physics A, 2018 The focus of this paper lies on the possible experimental tests of leptogenesis scenarios. We consider both leptogenesis generated from oscillations, as well as leptogenesis from out-of-equilibrium decays. As the Akhmedov–Rubakov–Smirnov (ARS) mechanism allows for heavy neutrinos in the GeV range, this opens up a plethora of possible experimental ...
Chun, Eung Jin +14 more
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Gravity as a portal to reheating, leptogenesis and dark matter [PDF]
Journal of High Energy Physics, 2022 We show that a minimal scenario, utilizing only the graviton as an intermediate messenger between the inflaton, the dark sector and the Standard Model (SM), is able to generate simultaneously the observed relic density of dark matter (DM), the baryon ...
Basabendu Barman +4 more
semanticscholar +1 more source
Gravitational leptogenesis [PDF]
Journal of Cosmology and Astroparticle Physics, 2007 4 pages, no ...
LAMBIASE, Gaetano, S. MOHANTY
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Low scale leptogenesis in singlet-triplet scotogenic model [PDF]
Journal of Cosmology and Astroparticle Physics, 2023 The scotogenic model presents an elegant and succinct framework for elucidating the origin of tiny neutrino masses within the framework of the Standard Model, employing radiative corrections within the domain of the dark sector.
L. Singh +2 more
semanticscholar +1 more source
Probing high scale Dirac leptogenesis via gravitational waves from domain walls [PDF]
Physical Review D, 2022 We propose a novel way of probing high scale Dirac leptogenesis, a viable alternative to canonical leptogenesis scenario where the total lepton number is conserved, keeping light standard model (SM) neutrinos purely Dirac.
Basabendu Barman +3 more
semanticscholar +1 more source
Supersymmetric leptogenesis [PDF]
Journal of Cosmology and Astroparticle Physics, 2010 We study leptogenesis in the supersymmetric standard model plus the seesaw. We identify important qualitative differences that characterize supersymmetric leptogenesis with respect to the non-supersymmetric case. The lepton number asymmetries in fermions and scalars do not equilibrate, and are related via a non-vanishing gaugino chemical potential. Due
Fong, Chee Sheng +3 more
openaire +2 more sources