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Pleitez, V.

doi:10.1103/physrevd.53.514

Cited by 55 publications

(33 citation statements)

References 64 publications

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“…for different LHC energy regimes, when Z 0 is a narrow resonance as predicted in two versions of the model, namely, the right-handed neutrino model (RHN) [5][6][7][8][9] and the Ö zer model [10,11].…”

Section: Introductionmentioning

confidence: 98%

“…Moreover, in this version the Z 0 width can be large, and it is usually called the minimal version of the model [3,4]. There are two versions of the model where there are no exotic charged quarks: one is called the right-handed neutrino version [5][6][7][8][9] and the other is called the Ö zer version [10,11]. For both, the Z 0 is a narrow resonance.…”

Section: Introductionmentioning

confidence: 98%

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Bounds onZ′from 3-3-1 model at the LHC energies

2013

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The Large Hadron Collider will restart with higher energy and luminosity in 2015. This achievement opens the possibility of discovering new phenomena hardly described by the Standard Model, which is based on the following two neutral gauge bosons: the photon and the Z. This perspective imposes a deep and systematic study of models that predicts the existence of new neutral gauge bosons. One such model is based on the gauge group SUð3Þ C Â SUð3Þ L Â Uð1Þ N , called the 3-3-1 model for short. In this paper we perform a study with Z 0 predicted in two versions of the 3-3-1 model and compare the signature of this resonance in each model version. By considering the present and future LHC energy regimes, we obtain some distributions and the total cross section for the process p þ p ! ' þ þ ' À þ X. Additionally, we derive lower bounds on Z 0 mass from the latest LHC results. Finally we analyze the LHC potential for discovering this neutral gauge boson at 14 TeV center-of-mass energy.

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Section: Introductionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 98%

Bounds onZ′from 3-3-1 model at the LHC energies

2013

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“…• In the first four models, the three lepton families are in equal representations, but the quarks are not. The structure of these models is similar, with the main difference between them being the value of β: −1/ √ 3 in the Singer-Valle-Schechter (SVS) model [9], − √ 3 in the Pisano-Pleitez-Frampton (PPF) model [10,11], 1/ √ 3 in the Pleitez-Özer model [71,72], and √ 3 in what we call the model X. They all share a common structure, which we call the SVS framework below.…”

Section: Introductionmentioning

confidence: 99%

Lepton number violation in 331 models

Fonseca

Hirsch

2016

Phys. Rev. D

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Different models based on the extended SU (3)C × SU (3)L × U (1)X (331) gauge group have been proposed over the past four decades. Yet, despite being an active research topic, the status of lepton number in 331 models has not been fully addressed in the literature, and furthermore many of the original proposals can not explain the observed neutrino masses. In this paper we review the basic features of various 331 models, focusing on potential sources of lepton number violation. We then describe different modifications which can be made to the original models in order to accommodate neutrino (and charged lepton) masses.

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“…One of the popular choices for this symmetry has been SU (2), and this has been extensively studied in terms of what effect the existence of such a symmetry would have on the relations between the fermion masses and also the Cabibbo-Kobayashi-Maskawa (CKM) matrix. [10] In references [11] and [12] Pleitez made the suggestion of adding such an SU (2) horizontal symmetry to the 331 model, and this is what has been pursued in this paper, investigating the effects on fermion masses and mixings. We consider both the original 331 model (Model I) and the later extension containing right-handed neutrinos (Model II).…”

Section: Introductionmentioning

confidence: 99%