Discovery Prospects of an Almost Fermiophobic W' in the Three-Site Higgsless Model at the LHC

Abstract

In extensions of the Standard Model with compactified extra dimensions, perturbative unitarity of the longitudinal gauge bosons is maintained through the contribution of heavy KK excitations of the gauge fields, without the necessity of introducing a Higgs field. The Three-Site Higgsless Model represents a minimal approach in this respect, containing just one extra set of heavy gauge bosons Z'/W' in the spectrum. While the Z' can have robust couplings to SM fermions and hence may be detected within the first 1-20 1/fb of LHC data at 14 TeV, the coupling of the W' to light fermions is suppressed and depends on the model parameters. Expanding on previous parton level studies, we determine discovery thresholds of the W' in s-channel Drell-Yan production at the LHC for W' masses of 380, 500 and 600 GeV, combining analyses of the semileptonic final states lljj, lnjj and the leptonic final state lnll including fast detector simulation.

19 pages Latex. Accepted for publication

References in corpus (10)

• PYTHIA 6.4 Physics and Manual
• A Three Site Higgsless Model
• LHC Signatures of New Gauge Bosons in the Minimal Higgsless Model
• Production of Almost Fermiophobic Gauge Bosons in the Minimal Higgsless Model at the LHC
• Does the three site Higgsless model survive the electroweak precision tests at loop?
• Z to b bbar and Chiral Currents in Higgsless Models
• W' production at the LHC in the 4-site Higgsless model
• Drell-Yan Production of Z' in the Three-Site Higgsless Model at the LHC
• Discovery Potential of New Boson $W_1^{\pm }$ in the Minimal Higgsless Model at LHC
• Measurements of neutral vector resonance in Higgsless models at the LHC

Cited by in corpus (7)

• LHC Higgs Signatures from Topflavor Seesaw Mechanism
• LHC Higgs Signatures from Extended Electroweak Gauge Symmetry
• Search for resonant diboson production in the lvjj decay channels with the ATLAS detector at 7 TeV
• Fermiophobic light Higgs boson in the type-I two-Higgs-doublet model
• Spin Determination for Fermiophobic Bosons
• Discovery and Mass Spectroscopy via Mixed Di-Boson Production at the LHC in a 4-Site Model with a Composite Higgs Boson
• Associated production of the heavy charged gauge boson $W_H$ and a top quark at LHC