The Determination of the Helicity of $W^{\prime }$ Boson Couplings at the LHC

Abstract

Apart from its mass and width, the most important property of a new charged gauge boson, $W^{\prime }$, is the helicity of its couplings to the SM fermions. Such particles are expected to exist in many extensions of the Standard Model. In this paper we explore the capability of the LHC to determine the $W^{\prime }$ coupling helicity at low integrated luminosities in the $\ell +E_T^{miss}$ discovery channel. We find that measurements of the transverse mass distribution, reconstructed from this final state in the $W-W^{\prime }$ interference region, provides the best determination of this quantity. To make such measurements requires integrated luminosities of $\sim 10(60)f{b}^{-1}$ assuming $M_{W^{\prime }}=1.5(2.5)$ TeV and provided that the $W^{\prime }$ couplings have Standard Model magnitude. This helicity determination can be further strengthened by the use of various discovery channel leptonic asymmetries, also measured in the same interference regime, but with higher integrated luminosities.

arXiv comment29 pages, 11 figures; discussion and reference added, typos corrected

References in corpus (45)

• A Large Mass Hierarchy from a Small Extra Dimension
• PYTHIA 6.4 Physics and Manual
• PYTHIA 6.2 Physics and Manual
• Bounds on Universal Extra Dimensions
• Electroweak symmetry breaking from dimensional deconstruction
• The Littlest Higgs
• Bulk Fields and Supersymmetry in a Slice of AdS
• Neutrino masses and mixings in non-factorizable geometry
• Electroweak gauge boson production at hadron colliders through O(alpha_s^2)
• The Phenomenology of Extra Neutral Gauge Bosons
• Radiative Corrections to Kaluza-Klein Masses
• Bulk Gauge Fields in the Randall-Sundrum Model
• Fermion Masses, Mixings and Proton Decay in a Randall-Sundrum Model
• Physics potential and experimental challenges of the LHC luminosity upgrade
• Experimental Probes of Localized Gravity: On and Off the Wall
• Gauge bosons in a five-dimensional theory with localized gravity
• Bosonic Supersymmetry? Getting Fooled at the LHC
• Bulk Standard Model in the Randall-Sundrum Background
• Electroweak precision measurements and collider probes of the Standard Model with large extra dimensions
• Electroweak and Flavor Physics in Extensions of the Standard Model with Large Extra Dimensions
• Discrimination of Supersymmetry and Universal Extra Dimensions at Hadron Colliders
• CTEQ6 Parton Distributions with Heavy Quark Mass Effects
• Higgs Mechanism and Bulk Gauge Boson Masses in the Randall-Sundrum Model
• Bounds on Kaluza-Klein excitations of the SM vector bosons from electroweak tests
• Electroweak Constraints on Extended Models with Extra Dimensions
• Breakdown of the Narrow Width Approximation for New Physics
• Effects of Extra Space-time Dimensions on the Fermi Constant
• Minimal Higher-Dimensional Extensions of the Standard Model and Electroweak Observables
• Z' Phenomenology and the LHC
• Precision Measurements and Fermion Geography in the Randall-Sundrum Model Revisited
• Weak radiative corrections to the Drell-Yan process for large invariant mass of a dilepton pair
• Probing the Nature of Compactification with Kaluza-Klein Excitations at the Large Hadron Collider
• Kaluza-Klein States of the Standard Model Gauge Bosons: Constraints From High Energy Experiments
• Lepton flavor violation in the Randall-Sundrum model with bulk neutrinos
• Interference between W-prime and W in single-top quark production processes
• Finding Z' bosons coupled preferentially to the third family at CERN LEP and the Fermilab Tevatron
• $V^{\prime }Z$ and $V^{\prime }W$ Production as Tests of Heavy Gauge Boson Couplings at Future Hadron Colliders
• Search for Wprime Boson Decaying to Electron-Neutrino Pairs in pbarp Collisions at sqrt{s}=1.96 TeV
• Four Fermion Contact Terms in Charged Current Processes and Large Extra Dimensions
• Extended Gauge Sectors at Future Colliders: Report of the New Gauge Boson Subgroup
• Discovery and Identifictation of Extra Gauge Bosons in e^+e^- -> nu nubar gamma
• Electroweak Radiative Corrections to Weak Boson Production at Hadron Colliders
• Testing the handedness of a heavy $W^{\prime }$ at future hadron colliders
• Signatures of Spherical Compactification at the LHC
• Searches for New Phenomena with Lepton Final States at the Tevatron

Cited by in corpus (31)

• The Physics of Heavy Z' Gauge Bosons
• Heavy Vector Triplets: Bridging Theory and Data
• Search for leptonic decays of W' bosons in pp collisions at sqrt(s) = 7 TeV
• From the LHC to Future Colliders
• Searching for Lee-Wick Gauge Bosons at the LHC
• Z' at the LHC: Interference and Finite Width Effects in Drell-Yan
• A weakly constrained W' at the early LHC
• Chiral Couplings of W' and Top Quark Polarization at the LHC
• Fun with New Gauge Bosons at 100 TeV
• Interference effects in heavy W'-boson searches at the LHC
• Two Simple W' Models for the Early LHC
• NLO+NLL limits on W' and Z' gauge boson masses in general extensions of the Standard Model
• Search for W' decaying to tau lepton and neutrino in proton-proton collisions at sqrt(s) = 8 TeV
• Top Quark Polarization As A Probe of Models with Extra Gauge Bosons
• Discovery in Drell-Yan Processes at the LHC
• NLO production of W' bosons at hadron colliders using the MC@NLO and POWHEG methods
• Production and Decays of $W_R$ bosons at the LHC
• Search for resonant WW and WZ production in ppbar collisions at ?s = 1.96 TeV
• Search for a resonance decaying into WZ boson pairs in $p\bar{p}$ collisions
• Drell-Yan production of multi Z'-bosons at the LHC within Non-Universal ED and 4D Composite Higgs Models
• Hadron Collider Searches for Diboson Resonances
• Signal-background interference for a singlet spin-0 digluon resonance at the LHC
• Distinguishing $W^{\prime }$ Signals at Hadron Colliders Using Neural Networks
• The specificity of searches for $W^{\prime }$, $Z^{\prime }$ and ${\gamma }^{\prime }$ coming from extra dimensions
• Phenomenology of an $SU(2{)}_1\times SU(2{)}_2\times U(1{)}_Y$ model at the LHC
• Signal-background interference for digluon resonances at the Large Hadron Collider
• The new charged gauge boson $W^{\prime }$ and the subprocess $eq\to \nu q^{\prime }$ at $e^{+}{e}^{-}$ and $ep$ colliders
• Measuring the mass, width, and couplings of semi-invisible resonances with the Matrix Element Method
• Heavy Charged Gauge Bosons with General CP Violating Couplings
• The specificity of the interactions of electroweak gauge bosons coming from extra dimensions
• A Simplified Model of Heavy Vector Singlets for the LHC and Future Colliders