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Mostrando ítems 11-20 de 43
Hα emission observations of nearby baryonic structures
(2022)
A fundamental question in astronomy is how the environment affects galaxy evolution. Baryonic structures in the nearby universe can be used as laboratories to study the influence of the environment on galaxy evolution ...
Measurement of the forward-backward asymmetries in the production of Ξ and Ω baryons in p p collisions MEASUREMENT of the FORWARD-BACKWARD ⋯ V. M. ABAZOV et al.
(2016-06-01)
We measure the forward-backward asymmetries AFB of charged Ξ and Ω baryons produced in pp collisions recorded by the D0 detector at the Fermilab Tevatron collider at s=1.96 TeV as a function of the baryon rapidity y. We ...
Post-sphaleron baryogenesis and an upper limit on the neutron-antineutron oscillation time
(2013-06-17)
A recently proposed scenario for baryogenesis, called post-sphaleron baryogenesis (PSB), is discussed within a class of quark-lepton unified framework based on the gauge symmetry SU(2)L×SU(2) R×SU(4)c realized in the ...
Expectations for Neutron-Antineutron Oscillation Time from TeV Scale Baryogenesis
(Amer Inst Physics, 2013-01-01)
A TeV scale extension of the standard model that incorporates the seesaw mechanism for neutrino masses along with quark-lepton unification is presented. It is shown that this model leads to the Delta B = 2 baryon number ...
Post-sphaleron baryogenesis and an upper limit on the neutron-antineutron oscillation time
(2013-06-17)
A recently proposed scenario for baryogenesis, called post-sphaleron baryogenesis (PSB), is discussed within a class of quark-lepton unified framework based on the gauge symmetry SU(2)L×SU(2) R×SU(4)c realized in the ...
Bariogénesis a través de leptogénesis
(Universidad Nacional de Colombia, Bogotá, 2009)
By adding right-handed Majorana neutrinos to the standard model, their out of equilibrium decays, which violate lepton number, combined with anomalous electroweak processes, can generate the baryon asymmetry of the Universe. ...
Leptogenesis in 331 Models
(2012)
En este trabajo se discuten algunas nociones fundamentales sobre la construcción de modelos para física de partículas basados en el grupo de simetría 331, y se tratan los problemas de masas de neutrinos y leptogénesis. Se ...
New high-sensitivity searches for neutrons converting into antineutrons and/or sterile neutrons at the HIBEAM/NNBAR experiment at the European Spallation Source
(IOP Publishing, 2021-07)
The violation of baryon number, is an essential ingredient for the preferential creation of matter over antimatter needed to account for the observed baryon asymmetry in the Universe. However, such a process has yet to be ...