Vector- and Scalar-Bilepton Pair Production in Hadron Colliders

Abstract

We study the double-charged vector-bilepton pair production and double-charged scalar-bilepton pair production {\it via} $p+p⟶Y^{++}+Y^{--}+X$ and $p+p⟶S_1^{++}+S_1^{--}+X$, where $Y$ and $S_1$ are vector and scalar bileptons respectively, in the framework of the minimal version of the 3-3-1 model. We compute the photon, $Z$, and $Z^{\prime }$ s-channel contributions for the elementary process of bilepton scalar pair production, and to keep the correct unitarity behavior for the elementary $q\bar{q}$ interaction, we include the exotic quark t-channel contribution in the vector-bilepton pair production calculation. We explore a mass range for $Z^{\prime }$ and we fix the exotic quark mass within the experimental bounds. In this model, the vector-bilepton mass is directly related to $M_{Z^{\prime }}$ and we consider scalar mass values around the vector-bilepton mass. We show that the total cross section for vector-bilepton production is 3 orders of magnitude larger than for scalar pair production for $\sqrt{s}=7$ TeV and 14 TeV and we obtain the number of events for the proposed LHC luminosities as a function of the bilepton mass. In addition we present some invariant mass and transverse momentum distributions. When comparing these distributions we observe quite different behavior providing the determination of the bilepton nature. We conclude that one can disentangle the production rates and that the LHC can be capable of detecting these predicted particles as a signal for new physics.

29 pages, 18 figures, 4 tables

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• Constraining the Z' Mass in 331 Models using Direct Dark Matter Detection
• A 331 WIMPy Dark Radiation Model
• Probing 3-3-1 Models in Diphoton Higgs Boson Decay
• Explaining the Higgs Decays at the LHC with an Extended Electroweak Model
• Excluding the Light Dark Matter Window of a 331 Model Using LHC and Direct Dark Matter Detection Data
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• New Signals for Doubly-Charged Scalars and Fermions at the Large Hadron Collider
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• Vector-bilepton Contribution to Four Lepton Production at the LHC
• Jets Plus Same-Sign Dileptons Signatures from Fermionic Leptoquarks at the LHC
• Constraints on exotic particle masses from flavor violating charged lepton decays and the role of interference