Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Giraldo, Yithsbey"'
Autor:
Benavides, Richard H., Giraldo, Yithsbey, Ponce, William A., Rodríguez, Oscar, Rojas, Eduardo
We study the possibility of obtaining the Standard Model (SM) of particle physics as an effective theory of a more fundamental one, whose electroweak sector includes two non-universal local $U(1)$ gauge groups, with the chiral anomaly cancellation ta
Externí odkaz:
http://arxiv.org/abs/2408.16177
We report the most general classification of 3-3-1 models with $\beta =\sqrt{3}$. We found several solutions where anomaly cancellation occurs among fermions of different families. These solutions are particularly interesting as they generate non-uni
Externí odkaz:
http://arxiv.org/abs/2307.15826
A model with fermion and scalar fields charged under a Peccei-Queen~(PQ) symmetry is proposed. The PQ charges are chosen in such a way that they can reproduce mass matrices with five texture zeros, {which can generate} the fermion masses, the CKM mat
Externí odkaz:
http://arxiv.org/abs/2304.07406
We review in a systematic way how anomaly free $SU(3)_c\otimes SU(3)_L\otimes U(1)_x$ models without exotic electric charges can be constructed, using as basis closed sets of fermions which includes each one the particles and antiparticles of all the
Externí odkaz:
http://arxiv.org/abs/2111.02563
A Peccei-Quinn~(PQ) symmetry is proposed in order to generate in the Standard Model~(SM) quark sector a realistic mass matrix ansatz with five texture-zeros. Limiting our analysis to Hermitian mass matrices, we show that this requires a minimum of 4
Externí odkaz:
http://arxiv.org/abs/2007.05653
In this work we propose new five textures zeros for the mass matrices in the lepton sector in order to predict values for the neutrino masses. In our approach we go beyond the Standard Model by assuming Dirac masses for the neutrinos, feature which a
Externí odkaz:
http://arxiv.org/abs/2002.01864
Autor:
Giraldo, Yithsbey, Rojas, Eduardo
In the Standard Model, we obtain a non-Fritzsch like configuration with five texture zeros for the quark mass matrices. This matrix generates the quark masses, the inner angles of the CKM unitary triangle, and the CP-violating phase in the quark sect
Externí odkaz:
http://arxiv.org/abs/1811.05068
Autor:
Giraldo, Yithsbey, Burbano, Larry
We will revise one of the methods given in the literature to determine the necessary and sufficient conditions that the parameters must satisfy to have a stable scalar potential in the general two-Higgs doublet model. We will give a procedure that fa
Externí odkaz:
http://arxiv.org/abs/1804.02093
Akademický článek
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Autor:
Giraldo, Yithsbey, Rojas, Eduardo
Publikováno v:
Phys. Rev. D 104, 075009 (2021)
In this work we carry out an exhaustive study to find quark mass matrices in the Standard Model~(SM), with the maximum number of texture zeros consistent with the experimental data. We found four viable configurations of five texture zeros that adjus
Externí odkaz:
http://arxiv.org/abs/1511.08858