Results 51 to 60 of about 369,328 (174)
Higgs Doublet Decay as the Origin of the Baryon Asymmetry. [PDF]
Physical Review Letters, 2016 We consider a question that curiously had not been properly considered thus far: in the standard seesaw model, what is the minimum value the mass of a right-handed (RH) neutrino must have for allowing successful leptogenesis via CP-violating decays ...
T. Hambye, D. Teresi
semanticscholar +1 more source
The small observed baryon asymmetry from a large lepton asymmetry [PDF]
Journal of High Energy Physics, 1999 Primordial Big-Bang Nucleosynthesis (BBN) tightly constrains the existence of any additional relativistic degrees of freedom at that epoch. However a large asymmetry in electron neutrino number shifts the chemical equilibrium between the neutron and proton at neutron freeze-out and allows such additional particle species.
March-Russell, J, Murayama, H, Riotto, A
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Thermalization of baryon asymmetry
Physics Letters B, 1980 Abstract In an expanding and cooling universe, baryon asymmetry generated through baryon-and CP -violating interactions in the early high temperature stages will tend at later stages to thermalize toward a situation of reduced baryon asymmetry. We analyze this thermalization effect in the context of the SU(5) model of grand unification.
S.B. Treiman, Frank Wilczek
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Large-scale magnetic fields can explain the baryon asymmetry of the Universe [PDF]
, 2016 Helical hypermagnetic fields in the primordial Universe can produce the observed amount of baryon asymmetry through the chiral anomaly without any ingredients beyond the standard model of particle physics.
Tomohiro Fujita, K. Kamada
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Baryon asymmetry from primordial black holes [PDF]
, 2016 We propose a new scenario of the baryogenesis from primordial black holes (PBH). Assuming presence of microscopic baryon (or lepton) number violation and a CP violating operator such as $\partial_\alpha F(\mathcal{R_{....}} ) J^\alpha$, where $F(\mathcal{
Yuta Hamada, S. Iso
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SEESAW MECHANISM AND THE BARYON ASYMMETRY [PDF]
SEESAW 25, 2005 Talk in Seesaw25, Paris, June 10-11 ...
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Can the Baryon Asymmetry Arise From Initial Conditions [PDF]
, 2016 In this letter, we quantify the challenge of explaining the baryon asymmetry using initial conditions in a universe that undergoes inflation. Contrary to lore, we find that such an explanation is possible if net $B-L$ number is stored in a light bosonic ...
G. Krnjaic
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Holography, Charge, and Baryon Asymmetry
Journal of Modern Physics, 2012 5 pages, no figures, clarified discussion of comparison with ...
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Astronomische Nachrichten, Volume 346, Issue 7-8, September 2025.ABSTRACT We investigate the effects of a minimal measurable length on neutron stars, within the quantum hadrodynamics (QHD‐I) model modified by the Generalized Uncertainty Principle (GUP). Working in a deformed Poisson algebra framework, we incorporate GUP effects via a time‐invariant transformation of the phase space volume, effectively reducing the ...
João Gabriel Galli Gimenez +2 more
wiley +1 more source
Baryon asymmetry via leptogenesis in a neutrino mass model with complex scaling [PDF]
, 2016 Baryogenesis via leptogenesis is investigated in a specific model of light neutrino masses and mixing angles. The latter was proposed on the basis of an assumed complex-extended scaling property of the neutrino Majorana mass matrix Mν, derived with a ...
R. Samanta +3 more
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