An extra Z' gauge boson as a source of Higgs particles

Abstract

Models with extra gauge bosons often require an extended Higgs sector, which contains a rich spectrum of Higgs bosons with properties that deviate from the Standard Model (SM). Such Higgs bosons could be searched using standard mechanisms similar to the SM. However, the existence of the new gauge bosons could provide new production mechanisms, which could probe the non-standard origin of the Higgs particle. In this paper we study how the Z' from a model with extra U(1)' could be used as a source of Higgs bosons. We study 3-bodies decays of the Z' into a Higgs boson and a top anti-top pair or WW pair, namely Z'\to t\bar{t} h, WW h. We find that it is possible to get {\Br'}s as high as 10^{-2} for these modes, which could be studied at future colliders. We also study the production of the Higgs bosons in association with the Z vector boson at a linear collider, through the reaction e^+ e^- \to Z, Z'\to Z+h, including both the resonant and the non-resonant effects.

17 pages, 8 figures

References in corpus (9)

• Observation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC
• Observation of a new boson at a mass of 125 GeV with the CMS experiment at the LHC
• Z' Phenomenology and the LHC
• $Z^{\prime }$ discovery potential at the LHC in the minimal $B-L$ extension of the Standard Model
• A search for ttbar resonances in the lepton plus jets final state with ATLAS using 4.7 fb^-1 of pp collisions at sqrt(s) = 7 TeV
• The 125 GeV Higgs signal at the LHC in the CP Violating MSSM
• Reconstructing Supersymmetric Theories by Coherent LHC / LC Analyses
• Discovery and Identification of Extra Neutral Gauge Bosons at the LHC
• What can we learn from the 126 GeV Higgs boson for the Planck scale physics ? - Hierarchy problem and the stability of the vacuum -

Cited by in corpus (2)

• Dark matter mass from relic abundance, an extra $U(1)$ gauge boson, and active-sterile neutrino mixing
• Observing nonstandard $W^{\prime }$ and $Z^{\prime }$ through the third generation and Higgs lens