Bounds on Z ′ from 3-3-1 model at the LHC energies

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 dee...

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Bibliographic Details
Published in:Physical review. D, Particles, fields, gravitation, and cosmology Particles, fields, gravitation, and cosmology, 2013-06, Vol.87 (11), Article 115014
Main Authors: Coutinho, Y. A., Guimarães, V. Salustino, Nepomuceno, A. A.
Format: Article
Language:English
Subjects:
Bosons
Cosmology
Cross sections
Gages
Gauges
Gravitation
Large Hadron Collider
Mathematical models
Photons
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Summary: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 SU(3) sub(C) x SU(3) sub(L) x U(1) sub(N), called the 3-3-1 model for short. In this paper we perform a study with Z' 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 + p arrow right l super(+) + l super(-) + X. Additionally, we derive lower bounds on Z' 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.
ISSN:1550-7998
1550-2368
DOI:10.1103/PhysRevD.87.115014