Neutral bilepton boson production in pp collisions from 3-3-1 model

Barreto, E. Ramirez; Coutinho, Y. Amaral; Borges, J. Sá

doi:10.1590/s0103-97332008000400022

Cited by 8 publications

(7 citation statements)

References 7 publications

(4 reference statements)

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“…The phenomenological aspects associated with the five gauge bosons in the model have been thoroughly explored in Refs. [62][63][64][65][66][67], to which we refer the interested reader. The most striking phenomenological feature is the presence of charged gauge bosons.…”

Section: Yukawa Sectormentioning

confidence: 99%

Constraining the $$Z^{\prime }$$ Z ′ mass in 331 models using direct dark matter detection

Profumo

Queiroz

2014

Eur. Phys. J. C

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We investigate a so-called 331 extension of the Standard Model gauge sector which accommodates neutrino masses and where the lightest of the new neutral fermions in the theory is a viable particle dark matter candidate. In this model, processes mediated by the additional Z gauge boson set both the dark matter relic abundance and the scattering cross section off of nuclei. We calculate with unprecedented accuracy the dark matter relic density, including the important effect of coannihilation across the heavy fermion sector, and show that indeed the candidate particle has the potential of having the observed dark matter density. We find that the recent LUX results put very stringent bounds on the mass of the extra gauge boson, M Z 2 TeV, independently of the dark matter mass. We also comment on the regime where our bounds on the Z mass may apply to generic 331-like models, and on implications for LHC phenomenology.

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Section: Yukawa Sectormentioning

confidence: 99%

Constraining the $$Z^{\prime }$$ Z ′ mass in 331 models using direct dark matter detection

Profumo

Queiroz

2014

Eur. Phys. J. C

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“…The double-and single-charged and neutral interaction Lagrangeans are given in previous works [1,6,7,8]. They are used to compute the lepton production at LHC for 7 TeV of center of mass energy.…”

Section: Resultsmentioning

confidence: 99%

“…From the same model B. Dion et al [4] obtained the total cross section for the production of a pair of bilepton in hadron colliders [5]. More recently, we used two versions from 3-3-1 to explored the production of a bilepton pair for LHC energies [6,7,8].…”

Section: Introductionmentioning

confidence: 99%

Lepton production at the LHC from singly- and doubly-charged bilepton

Borges¹,

Coutinho²,

Barreto³

2013

AIP Conference Proceedings

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Some extensions of the standard model predict the existence of particles having two units of leptonic charge, known as bileptons. One of such models is based on the SU(3) c × SU(3) L × U(1) X symmetry group (3-3-1). Our search uses the minimal version of this model, having exotic charges for the quarks and gauge bosons. It predicts the existence of bileptons as vector particles having one unit of electric charge (V ± ) or two units of electric charge (Y ±± ).Our aim is to establish the signatures for the production of four fermions in pp collisions at the LHC for 7 TeV center of mass energy. We present the total cross section and we show the leptons invariant mass and transverse momentum distributions. We conclude that LHC collider can show a clear signature for a process induced by bileptons as a signal of new physics.

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“…Therefore, the 3-3-1 model with right-handed neutrinos predicts the existence of new charged gauge bosons, W ± , which are subject to intense searches at the LHC [68,69], and exotic neutral gauge bosons U 0 and U 0 † [70]. Moreover, from a combination of the W 8 , W 3 and W N fields, we extract the SM photon and Z bosons, as well as a massive Z field.…”

Section: Gauge Sectormentioning

confidence: 99%

Lepton flavor violation and collider searches in a type I + II seesaw model

et al. 2019

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Neutrino are massless in the Standard Model. The most popular mechanism to generate neutrino masses are the type I and type II seesaw, where right-handed neutrinos and a scalar triplet are augmented to the Standard Model, respectively. In this work, we discuss a model where a type I + II seesaw mechanism naturally arises via spontaneous symmetry breaking of an enlarged gauge group. Lepton flavor violation is a common feature in such setup and for this reason, we compute the model contribution to the µ → eγ and µ → 3e decays. Moreover, we explore the connection between the neutrino mass ordering and lepton flavor violation in perspective with the LHC, HL-LHC and HE-LHC sensitivities to the doubly charged scalar stemming from the Higgs triplet. Our results explicitly show the importance of searching for signs of lepton flavor violation in collider and muon decays. The conclusion about which probe yields stronger bounds depends strongly on the mass ordering adopted, the absolute neutrino masses and which much decay one considers. In the 1 − 5 TeV mass region of the doubly charged scalar, lepton flavor violation experiments and colliders offer orthogonal and complementary probes. Thus if a signal is observed in one of the two new physics searches, the other will be able to assess whether it stems from a seesaw framework.

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Neutral bilepton boson production in pp collisions from 3-3-1 model

Cited by 8 publications

References 7 publications

Constraining the $$Z^{\prime }$$ Z ′ mass in 331 models using direct dark matter detection

Constraining the $$Z^{\prime }$$ Z ′ mass in 331 models using direct dark matter detection

Lepton production at the LHC from singly- and doubly-charged bilepton

Lepton flavor violation and collider searches in a type I + II seesaw model

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