Neutral meson mixing induced by box diagrams in the 3-3-1 model with heavy leptons

Correia, F.C.; Pleitez, V.

doi:10.1103/physrevd.92.113006

Cited by 9 publications

(6 citation statements)

References 48 publications

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“…Our main result, using the strategy discussed above, i.e., first fit all unitary matrices, is that the strongest constraint on the doubly charged vector bilepton U ++ µ , comes from µ → eeē. We will show that unlike processes in the quark sector [8,16] in leptonic processes the scalar contributions are supressed. This sort of models predict also flavor changing neutral currents (FCNC) in the scalar sector, thus we consider also h 0 → l ilj , at tree level, in a situation in which there is no more free parameters in the Yukawa coupling since all of them are already fixed when we obtain the matrices V l L,R , V ν L , the PMNS mixing matrix and lepton masses.…”

Section: Introductionmentioning

confidence: 86%

“…The scalar contributions can not, in general, be neglected anymore. At least this is the case in the quark sector [8,16].…”

Section: The M331 With Singlet Right-handed Neutrinosmentioning

confidence: 99%

“…However, we stress that unlike Refs. [17,18], we can not assume V V in the third line in (16) to be exactly zero because in that case V U would be a diagonal matrix, which is not possible by the definition V U ≡ V lT R V l L , and notice also that from M l in (7) we can not assume such matrices to be diagonal since the beginning.…”

Section: A Interaction With the Doubly Charged Vector Bosonsmentioning

confidence: 99%

“…The interactions of the U ±± µ bileptons with chiral leptons were given in Eq. (16), and although we have split the interactions in terms of left-and right-handed currents in our calculations we will use all currents as left-handed in order to use the unitary gauge, see for instance Ref. [48].…”

Section: Second Parametrizationmentioning

confidence: 99%

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Lepton flavor violating processes in the minimal 3-3-1 model with sterile neutrinos

Machado¹,

Montaño²,

Pleitez³

2019

J. Phys. G: Nucl. Part. Phys.

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We consider the minimal 3-3-1 model with three sterile neutrinos transforming as singlet under the SU (3)L ⊗ U (1)X symmetry. This model, with or without sterile neutrinos, predicts flavor violating interactions in both quark and lepton sectors, since all the charged fermions mass matrices can not be assumed diagonal in any case. Here we accommodate the lepton masses and the Pontecorvo-Maki-Nakawaga-Sakata matrix at the same time, and as consequence the Yukawa couplings and the unitary matrices which diagonalize the mass matrices are not free parameters anymore. We study some phenomenological consequences, i.e., li → lj l klk and li → ljγ which are induced by neutral and doubly charged particles present in the model. In particular we find that if the decay µ → eeē is observed in the future, the only particle in the model that could explain this decay is the doubly charged vector bilepton.

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Section: Introductionmentioning

confidence: 86%

“…The scalar contributions can not, in general, be neglected anymore. At least this is the case in the quark sector [8,16].…”

Section: The M331 With Singlet Right-handed Neutrinosmentioning

confidence: 99%

Section: A Interaction With the Doubly Charged Vector Bosonsmentioning

confidence: 99%

Section: Second Parametrizationmentioning

confidence: 99%

See 2 more Smart Citations

Lepton flavor violating processes in the minimal 3-3-1 model with sterile neutrinos

Machado¹,

Montaño²,

Pleitez³

2019

J. Phys. G: Nucl. Part. Phys.

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“…The model is usually called 3-3-1 model with heavy leptons, or 331HL for short [21,40]. In both cases the quarks sector is the same.…”

Section: Minimal 331 Modelmentioning

confidence: 99%

Challenges for the 3-3-1 models

Pleitez¹

2021

Preprint

Self Cite

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The so-called 3-3-1 models have been widely studied in the literature. However, in almost all cases, as with other models, just simplified versions have been consider. On the other hand, the LHC has not neither confirmed nor rejected any model. In this paper we consider some aspects of the 3-3-1 models that must be investigated, or be re-analyzed, firstly theoretically and, eventually, experimentally. Some of these issues are independent of the representation content of the particular model, that is, they are independent of the value of the β parameter. However, others strongly depend on the particular model considered.

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The Δ(27) flavor 3-3-1 model with neutral leptons

Vien¹,

Hernández²,

Long³

2016

Nuclear Physics B

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We build the first 3-3-1 model based on the ∆(27) discrete group symmetry, consistent with fermion masses and mixings. In the model under consideration, the neutrino masses are generated from a combination of type-I and type-II seesaw mechanisms mediated by three heavy right-handed Majorana neutrinos and three SU (3) L scalar antisextets, respectively. Furthermore, from the consistency of the leptonic mixing angles with their experimental values, we obtain a non-vanishing leptonic Dirac CP violating phase of − π 2 . Our model features an effective Majorana neutrino mass parameter of neutrinoless double beta decay, with values m ββ = 10 and 18 meV for the normal and the inverted neutrino mass hierarchies, respectively.

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Neutral meson mixing induced by box diagrams in the 3-3-1 model with heavy leptons

Cited by 9 publications

References 48 publications

Lepton flavor violating processes in the minimal 3-3-1 model with sterile neutrinos

Lepton flavor violating processes in the minimal 3-3-1 model with sterile neutrinos

Challenges for the 3-3-1 models

The Δ(27) flavor 3-3-1 model with neutral leptons

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