Constraining the 3−3−1 model with heavy neutral leptons using (g−2)μ and dark matter observables
نویسندگان
چکیده
منابع مشابه
Neutral Heavy Leptons and Electroweak Baryogenesis
We investigate the possibility that baryogenesis occurs during the weak phase transition in a minimal extension of the Standard Model which contains extra neutral leptons and conserves total lepton number. The necessary CP-violating phases appear in the leptonic Yukawa couplings. We compute the CP-asymmetries in both the neutral and the charged lepton fluxes reflected in the unbroken phase. Usi...
متن کاملOn Neutrino Production of Heavy Neutral Leptons*
Production of heavy neutral leptons by p -.type neutrinos is inves tigated in the framework of a strangeness-conserving neutral current model, ati the analysis is applied to the Ramm effect. The failure to observe such heavy leptons in the K-meson decay spectrum is easily understood, but the large charged current coupling strength required in the heavy lepton decay (well above the universal val...
متن کاملA Search for Neutral Heavy Leptons
In e+eannihilations at SPEAR we have searched for narrow neutral resonances in the eT and ~.ln channels for masses between .5 GeV/c 2 and 1.5 GeV/c2. No evidence for such states has been found. Under standard theoretical assumptions for production cross sections and decay branching ratios of heavy leptons a lower limit of 1.2 GeV/c 2 can be set on the mass. *FJork supported by the Energy Resear...
متن کاملConstraining the coupling constant between dark energy and dark matter
We have investigated constraints on the coupling between dark matter and the interacting Chaplygin gas. Our results indicate that the coupling constant c between these two entities can take arbitrary values, which can be either positive or negative, thus giving arbitrary freedom to the inter-conversion between Chaplygin gas and dark matter. Thus, our results indicate that the restriction 0 < c ...
متن کاملDecay meg in models with neutral heavy leptons
%e explore possible muon-number-nonconserving processes in gauge theories in which the right-handed muon and electron appear along with neutral heavy leptons in SU(2) U(1) doublets. The same mechanism which gives a mass to the electron and muon is expected to mix the left-handed neutral leptons with the neutrinos. In the simplest case, this leads to a rate for p, ~ey 25 times larger than previo...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review D
سال: 2021
ISSN: 2470-0010,2470-0029
DOI: 10.1103/physrevd.103.035029