Longitudinal Weak Gauge Bosons Scattering in Hidden Z' Models

Abstract

Longitudinal weak gauge boson scattering has been well known as a powerful method to probe the underlying mechanism of the electroweak symmetry breaking sector of the Standard Model. We point out that longitudinal weak gauge boson scattering is also sensitive to the gauge sector when the non-Abelian trilinear and quartic couplings of the Standard Model Z boson are modified due to the general mixings with another Z' boson in the hidden sector and possibly with the photon as well. In particular, these mixings can lead to a partially strong scattering effect in the channels of W^\pm_L W^\pm_L \to W^\pm_L W^\pm_L and W^\pm_L W^\mp_L \to W^\pm_L W^\mp_L which can be probed at the Large Hadron Collider. We study this effect in a simple U(1) extension of the Standard Model recently suggested in the literature that includes both the symmetry breaking Higgs mechanism as well as the gauge invariant Stueckelberg mass terms for the two Abelian groups. Other types of Z' models are also briefly discussed.

18 pages, 4 figures, and 2 tables, version to appear in PRD

References in corpus (7)

• Naturally Light Hidden Photons in LARGE Volume String Compactifications
• Improved Constraints on Z' Bosons from Electroweak Precision Data
• Illuminating the Hidden Sector of String Theory by Shining Light through a Magnetic Field
• Probing a Very Narrow $Z^{\prime }$ Boson with CDF and D0 Data
• Identification of Extra Neutral Gauge Bosons at the LHC Using b- and t-Quarks
• Searching for Extra Z' from Strings and Other Models at the LHC with Leptoproduction
• Partially Strong WW Scattering

Cited by in corpus (4)

• New Physics Signals in Longitudinal Gauge Boson Scattering at the LHC
• WW Scattering in the Era of Post Higgs Discovery
• A reappraisal of constraints on $Z^{\prime }$ models from unitarity and direct searches at the LHC
• The Prediction of Mass of Z'-Boson from $b_q^0-b_q^{0}bar$ Mixing