27 citations · 271 across the 25 of their papers we have counts for
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Decay of the Z' gauge boson with lepton flavor violation
D. Espinosa-Gomez, F. Ramirez-Zavaleta, E. S. Tututi
The flavor-violating decay of a new neutral massive gauge boson is analyzed in the context of extended models, in which this particle emerges. By means of the analy…
The top quark chromomagnetic dipole moment in the SM from the 4-body vertex function
J. Montano-Dominguez, F. Ramirez-Zavaleta, E. S. Tututi +1
A new proposal to compute the anomalous chromomagnetic dipole moment of the top quark, , in the Standard Model is presented. On the basis of the 5-dimensional effective La…
Off-shell chromomagnetic dipole moments in the SM at and beyond the gauge boson mass scale
J. Montano-Dominguez, B. Quezadas-Vivian, F. Ramirez-Zavaleta +2
The off-shell anomalous chromomagnetic dipole moment of the standard model quarks (, , , and ), at the gauge boson mass scale, is computed by using the $\overli…
Rare decays of the top quark mediated by Z' gauge bosons and flavor violation
J. I. Aranda, D. Espinosa-Gomez, J. Montano +2
The rare top quark decays mediated by a new neutral massive gauge boson that is predicted in models with extended gauge symmetries are studied. We focus on the processes $t\to cV,…
Flavor violation in chromo- and electromagnetic dipole moments induced by gauge bosons and a brief revisit of the Standard Model
J. I. Aranda, D. Espinosa-Gomez, J. Montano +3
The electromagnetic dipole moments of the tau lepton and the chromoelectromagnetic dipole moments of the top quark are estimated via flavor-changing neutral currents, mediated by a…
Heavy neutral scalar decays into electroweak gauge bosons in the Littlest Higgs Model
J. I. Aranda, I. Cortes-Maldonado, S. Montejo-Montejo +2
We study the heavy neutral scalar decays into standard model electroweak gauge bosons in the context of the Littlest Higgs model. We focus our attention on the pro…
Lorentz-violating effects on pair production of W bosons in photon collisions
J. I. Aranda, F. Ramirez-Zavaleta, F. J. Tlachino +2
We examine Lorentz-violating effects that could appear through deviations of the Standard Model gauge couplings WWgamma and WWgammagamma. These new physics effects are explored on…
Effects of Lorentz violation through the process in the Standard Model Extension
J. I. Aranda, F. Ramirez-Zavaleta, D. A. Rosete +3
Physics beyond the Fermi scale could show up through deviations of the gauge couplings predicted by the electroweak Yang-Mills sector. This possibility is explored in the context o…
Study of the lepton flavor-violating decay
J. I. Aranda, J. Montano, F. Ramirez-Zavaleta +2
The lepton flavor violating decay is studied in the context of several extended models that predict the existence of the new gauge boson named . A calcu…
Decays Z' -> γγγ and Z -> γγγ in the minimal 331 model
J. Montano, M. A. Perez, F. Ramirez-Zavaleta +1
The possibility of a significant effect of exotic particles on the Z'->γγγ and Z->γγγ decays is investigated in the context of the minimal 331 model. This model, which is based in…
Z'tc coupling from D0-D0 mixing
J. I. Aranda, F. Ramirez-Zavaleta, J. J. Toscano +1
We bound the coupling using the meson mixing system. We obtained such coupling which is less than . We have studied the $Z^\pr…
One-loop effects of extra dimensions on the WWγand WWZ vertices
A. Flores-Tlalpa, J. Montano, H. Novales-Sánchez +2
The one-loop contribution of the excited Kaluza-Klein (KK) modes of the gauge group on the off-shell and vertices is calculated in the context of a pure Yang-…
The decay in the presence of a constant antisymmetric tensor field
G. Ahuatzin, I. Bautista, J. A. Hernandez-Lopez +2
A constant antisymmetric 2-tensor can arise in general relativity with spontaneous symmetry breaking or in field theories formulated in a noncommutative space-time. In this work, t…
Bounding the coupling from mixing and single top production at the ILC
J. I. Aranda, F. Ramirez-Zavaleta, J. J. Toscano +1
In the present work the coupling is bounded by using the current experimental data on the meson-mixing system. It is found that the strength assoc…
Bounding the B_s -> gamma gamma decay from Higgs mediated FCNC transitions
J. I. Aranda, J. Montano, F. Ramirez-Zavaleta +2
The Higgs mediated flavor violating bottom-strange quarks transitions induced at the one-loop level by a nondiagonal coupling are studied within the context of an effective Y…
Higgs mediated Double Flavor Violating top decays in Effective Theories
A. Fernandez, C. Pagliarone, F. Ramirez-Zavaleta +1
The possibility of detecting double flavor violating top quark transitions at future colliders is explored in a model-independent manner using the effective Lagrangian approach thr…
Higgs mediated flavor violating top quark decays t --> u_i H, u_i gamma, u_i gamma gamma, and the process gamma gamma --> t c in effective theories
J. I. Aranda, A. Cordero-Cid, F. Ramirez-Zavaleta +2
The rare top quark couplings and () induced at the one-loop level by a flavor violating vertex are studied within the context of an effective Yuka…
Decays Z --> g g gamma and Z-prime --> g g gamma in the minimal 331 model
A. Flores-Tlalpa, J. Montano, F. Ramirez-Zavaleta +1
The one-loop induced Z --> g g gamma and Z-prime --> g g gamma decays are studied within the context of the minimal 331 model, which predicts the existence of new gauge bosons and…
Decays Z --> ggg and Z-prime --> ggg in the minimal 331 model
A. Flores-Tlalpa, J. Montano, F. Ramirez-Zavaleta +1
We perform a complete calculation at the one-loop level for the Zggg and Z'ggg couplings in the context of the minimal 331 model, which predicts the existence of a new Z' gauge bos…
Higgs mediated lepton flavor violating tau decays and in effective theories
J. I. Aranda, F. Ramírez--Zavaleta, J. J. Toscano +1
The size of the branching ratios for the and decays induced by a lepton flavor violating Higgs interaction is studied in the frame of effective field the…
Bilepton effects on the WWV^* vertex in the 331 model with right-handed neutrinos via a SU_L(2)XU_Y(1) covariant quantization scheme
F. Ramirez-Zavaleta, G. Tavares-Velasco, J. J. Toscano
In a recent paper, we investigated the effects of the massive charged gauge bosons (bileptons) predicted by the minimal 331 model on the off-shell vertex WWV^* (V=gamma, Z) using a…
Electric dipole and magnetic quadrupole moments of the boson via a CP-violating vertex in effective Lagrangians
J. Montano, F. Ramirez-Zavaleta, G. Tavares-Velasco +1
The possibility of nonnegligible electric dipole () and magnetic quadrupole () moments induced by the most general vertex is examined via…
SU_L(2) X U_Y(1)-invariant description of the bilepton contribution to the WWV vertex in the minimal 331 model
J. Montano, G. Tavares-Velasco, J. J. Toscano +1
We study the one-loop sensitivity of the WWV (V=gamma, Z) vertex to the new massive gauge bosons predicted by the minimal SU_L(3) X U_X(1) model, which have unusual couplings to th…
Rare three-body decay t -> c h gamma in the standard model and the two-Higgs doublet model
A. Cordero-Cid, J. L. Garcia-Luna, F. Ramirez-Zavaleta +2
A complete calculation of the rare three-body decay t --> c h gamma is presented in the framework of the standard model. In the unitary gauge, such a calculation involves about 20…