Direct search for heavy gauge bosons at the LHC in the nonuniversal SU(2) model

Abstract

We study the phenomenology of heavy gauge bosons at the LHC in a nonuniversal gauge interaction model with the separate electroweak SU(2) gauge group for the third generation. Considered are the Drell-Yan processes into the final states of dilepton, dijet, ${\tau }^{-}{\tau }^{+}$, and $t\bar{t}$ for $Z^{\prime }$ boson and those of lepton-neutrino for $W^{\prime }$ boson. We find that the present LHC data provides lower bounds on the masses of the heavy gauge bosons, $m_{Z^{\prime }},m_{W^{\prime }}>2$ TeV, more stringent than indirect bounds, when ${\sin }^2\varphi >0.15$ for the mixing angle of two SU(2) gauge groups.We also note that the study of heavy resonances into the third generation fermions may provide some valuable information in the future.

7 pages, 4 figures

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Cited by in corpus (6)

• Production of Z'-Boson Resonances with Large Width at the LHC
• Instanton-mediated baryon number violation in non-universal gauge extended models
• The TopFlavor scheme in the context of $W^{\prime }$ searches at LHC
• Constraining $Z^{\prime }$ widths from $p_T$ measurements in Drell-Yan processes
• Observing nonstandard $W^{\prime }$ and $Z^{\prime }$ through the third generation and Higgs lens
• Complementarity of Forward-Backward Asymmetry for discovery of Z' bosons at the Large Hadron Collider