Results 41 to 50 of about 5,564 (231)
The hubble tension as a hint of leptogenesis and neutrino mass generation [PDF]
The European Physical Journal C, 2021 The majoron, a neutrinophilic pseudo-Goldstone boson conventionally arising in the context of neutrino mass models, can damp neutrino free-streaming and inject additional energy density into neutrinos prior to recombination.
M. Escudero, S. Witte
semanticscholar +1 more source
Nuclear Physics B, 2004 We study the scenario of thermal leptogenesis in which the leptonic asymmetries are resonantly enhanced through the mixing of nearly degenerate heavy Majorana neutrinos that have mass differences comparable to their decay widths. Field-theoretic issues arising from the proper subtraction of real intermediate states from the lepton-number-violating ...
Pilaftsis, Apostolos +1 more
openaire +2 more sources
LEPTOGENESIS FROM SOFT SUPERSYMMETRY BREAKING: SOFT LEPTOGENESIS [PDF]
International Journal of Modern Physics A, 2011 Soft leptogenesis is a scenario in which the cosmic baryon asymmetry is produced from a lepton asymmetry generated in the decays of heavy sneutrinos (the partners of the singlet neutrinos of the seesaw) and where the relevant sources of CP violation are the complex phases of soft supersymmetry-breaking terms.
Fong, Chee Sheng +2 more
openaire +3 more sources
Reconciling resonant leptogenesis and baryogenesis via neutrino oscillations [PDF]
Physical Review D, 2021 Right-handed neutrinos offer an elegant solution to two well established phenomena beyond the Standard Model (SM)—masses and oscillations of neutrinos, as well as the baryon asymmetry of the Universe.
Juraj Klari'c +2 more
semanticscholar +1 more source
A New Left‐Right Symmetry Model
Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020 We propose a new L‐R symmetry model where the L‐R symmetry transformation reverses both the L‐R chirality and the local quantum number. We add to the model a global quantum number F whose value is one for fermions (minus one for antifermion) and vanishes for bosons.
Apriadi Salim Adam +3 more
wiley +1 more source
Leptogenesis and dark matter through relativistic bubble walls with observable gravitational waves [PDF]
Journal of High Energy Physics, 2022 We study a scenario where both dark matter and heavy right handed neutrino (RHN) responsible for leptogenesis acquire masses by crossing the relativistic bubble walls formed as a result of a TeV scale supercooled first order phase transition (FOPT ...
D. Borah, A. Dasgupta, Indrajit Saha
semanticscholar +1 more source
Nuclear Effects and CP Sensitivity at DUNE
Advances in High Energy Physics, Volume 2020, Issue 1, 2020., 2020 The precise measurement of neutrino‐oscillation parameters is one of the highest priorities in neutrino‐oscillation physics. To achieve the desired precision, it is necessary to reduce the systematic uncertainties related to neutrino energy reconstruction.
Srishti Nagu +4 more
wiley +1 more source
Frontiers in Physics, 2018 In this review, we present several variants of left–right symmetric models in the context of neutrino masses and leptogenesis. In particular, we discuss various low scale seesaw mechanisms like linear seesaw, inverse seesaw, extended seesaw and their ...
Chandan Hati +6 more
doaj +1 more source
Tests of low-scale leptogenesis in charged lepton flavour violation experiments
Physics Letters B, 2023 We consider low-energy tests of low-scale leptogenesis based on the type I seesaw scenario with three right-handed singlet neutrinos νlR. In this scenario, successful leptogenesis is possible for quasi-degenerate in mass heavy Majorana neutrinos N1,2,3 ...
A. Granelli, J. Klarić, S.T. Petcov
doaj +1 more source
Constraining the cosmic strings gravitational wave spectra in no-scale inflation with viable gravitino dark matter and nonthermal leptogenesis [PDF]
Physical Review D, 2022 We revisit the hybrid inflation model gauged by U (1) B − L extension of the Minimal Supersymmetric Standard Model (MSSM) in a no-scale background. Consider-ing a single predictive framework, we study inflation, leptogenesis, gavitino cosmology, and the ...
Waqas Ahmed +3 more
semanticscholar +1 more source