Zobrazeno 1 - 10
of 128
pro vyhledávání: '"Tututi, E. S."'
The flavor-violating decay of a new neutral massive gauge boson $Z^\prime\to\mu e$ is analyzed in the context of extended models, in which this particle emerges. By means of the analysis of the $\mu\to e\gamma$ decay, $\mu-e$ conversion process in nu
Externí odkaz:
http://arxiv.org/abs/2310.04509
Publikováno v:
J.Phys.G 49 (2022) 7, 075004
A calculation of weak dipole moments of charged fermions of the Standard Model (SM) at the one-loop level, in the context of a general effective extended neutral current model with flavor changing $Z^\prime f_i \bar{f}_j$ vertices, is presented. We g
Externí odkaz:
http://arxiv.org/abs/2206.07641
Publikováno v:
Int. J. Mod. Phys. A 37, 2250138 (2022)
A bound on the CPT-odd four vector coefficient $k^\mu_\phi$ that appears in Higgs sector of the Minimal Standard Model Extended (MSME) is presented. The analysis is based on the contributions arising from the sector in question to the anomalous dipol
Externí odkaz:
http://arxiv.org/abs/2205.06332
A new proposal to compute the anomalous chromomagnetic dipole moment of the top quark, $\hat{\mu}_t$, in the Standard Model is presented. On the basis of the 5-dimensional effective Lagrangian operator that characterizes the quantum-loop induced chro
Externí odkaz:
http://arxiv.org/abs/2110.14125
Autor:
Montano-Dominguez, J., Quezadas-Vivian, B., Ramirez-Zavaleta, F., Tututi, E. S., Urquiza-Trejo, E.
The off-shell anomalous chromomagnetic dipole moment of the standard model quarks ($u$, $d$, $s$, $c$ and $b$), at the $Z$ gauge boson mass scale, is computed by using the $\overline{\textrm{MS}}$ scheme. The numerical results disagree with all the p
Externí odkaz:
http://arxiv.org/abs/2106.13923
We revisit the rare decays of the Higgs boson to two different quarks in the Standard Model, which arise at the one-loop level. We perform Taylor series expansions to the complete form factors of the decay amplitudes, according to their different mas
Externí odkaz:
http://arxiv.org/abs/2009.07166
Autor:
Aranda, J. I., Cisneros-Pérez, T., Montaño, J., Quezadas-Vivian, B., Ramírez-Zavaleta, F., Tututi, E. S.
We revisit the anomalous chromomagnetic dipole moment in the Standard Model and show that its triple gluon vertex contribution, with the on-shell gluon ($q^2=0$), generates an infrared divergent pole. Consequently, the chromomagnetic dipole should no
Externí odkaz:
http://arxiv.org/abs/2009.05195
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 $t\to cV, uV$ induced at the one loop level, where $V =\gamma, g$, by considerin
Externí odkaz:
http://arxiv.org/abs/2005.02334
Autor:
Aranda, J. I., Espinosa-Gomez, D., Montano, J., Quezadas-Vivian, B., Ramirez-Zavaleta, F., Tututi, E. S.
Publikováno v:
Phys. Rev. D 98, 116003 (2018)
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 new neutral massive gauge boson. We predict them in the context of mo
Externí odkaz:
http://arxiv.org/abs/1809.02817
Autor:
García-Jiménez, I., Montaño, J., Nápoles-Cañedo, G. I., Novales-Sánchez, H., Toscano, J. J., Tututi, E. S.
The signal strength of the $gg \to H \to \gamma \gamma$ reaction in $pp$ collisions at the LHC is studied within the context of the SM with UED. The impact of an arbitrary number $n$ of UED on both the $gg\to H$ and $H\to \gamma \gamma$ subprocesses
Externí odkaz:
http://arxiv.org/abs/1705.02637