Results 71 to 80 of about 369,328 (174)
Leptogenesis in the symmetric phase of the early universe: Baryon asymmetry and hypermagnetic helicity evolution [PDF]
, 2015 We investigate the evolution of the baryon asymmetry of the Universe (BAU) in its symmetric phase before the electroweak phase transition (EWPT) induced by leptogenesis in the hypermagnetic field of an arbitrary structure and with a maximum hypermagnetic
V. Semikoz, A. Smirnov
semanticscholar +1 more source
Baryon asymmetries in a natural inflation model [PDF]
Physical Review D, 2014 A variation of Affleck-Dine mechanism was proposed to generate the observed baryon asymmetry in [1], in which the inflaton was assumed to be a complex scalar field with a weakly broken $U(1)$ symmetry, and the baryon asymmetry generation was easily unified with the stage of inflation and reheating. We adapt this mechanism to natural inflation scenarios
Li, Nan, Zeng, Ding-fang
openaire +2 more sources
Deviations From μ‐τ Symmetry Using Δ(27) Group on Neutrino Masses and Mixings
Advances in High Energy Physics, Volume 2024, Issue 1, 2024.The implication of the neutrino mass model based on Δ(27) discrete flavor symmetry, on parameters of neutrino oscillations, CP violation, and effective neutrino masses is studied using the Type I seesaw mechanism. The standard model particle content is extended by adding two additional Higgs doublets, three right‐handed neutrinos, and two scalar ...
Ph. Wilina +2 more
wiley +1 more source
Lepton Number Violation and the Baryon Asymmetry of the Universe [PDF]
, 2015 Neutrinoless double beta decay, lepton number violating collider processes and the Baryon Asymmetry of the Universe (BAU) are intimately related. In particular, lepton number violating processes at low energies in combination with sphaleron transitions ...
J. Harz, Wei-Chih Huang, H. Pas
semanticscholar +1 more source
Baryon asymmetry and mass matrices [PDF]
Physical Review D, 2002 11 pages, RevTex.
openaire +2 more sources
Baryon asymmetry, dark matter, and density perturbation from primordial black holes [PDF]
, 2014 We investigate the consistency of a scenario in which the baryon asymmetry, dark matters, as well as the cosmic density perturbation are generated simultaneously through the evaporation of primordial black holes (PBHs).
Tomohiro Fujita +3 more
semanticscholar +1 more source
Theories relating baryon asymmetry and dark matter [PDF]
Front. Physics, 2013 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 ...
S. Boucenna, S. Morisi
semanticscholar +1 more source
Baryon asymmetry in a heavy moduli scenario [PDF]
Physical Review D, 2007 36 pages, 5 figures; added a reference; v3: minor ...
Kawasaki, Masahiro, Nakayama, Kazunori
openaire +2 more sources
The νMSM, dark matter and baryon asymmetry of the universe [PDF]
, 2005 We show that the extension of the standard model by three right-handed neutrinos with masses smaller than the electroweak scale (the νMSM) can explain simultaneously dark matter and baryon asymmetry of the universe and be consistent with the experiments ...
T. Asaka, M. Shaposhnikov
semanticscholar +1 more source
Dark matter assimilation into the baryon asymmetry [PDF]
Journal of Cosmology and Astroparticle Physics, 2012 27 pages, 9 figures, 4 tables; v2, references added, switched to JCAP format; v3, references added, version published in ...
D'Eramo, Francesco +2 more
openaire +4 more sources