Signals of a 2 TeV $W^{\prime }$ boson and a heavier $Z^{\prime }$ boson

Abstract

We construct an $SU(2{)}_L\times SU(2{)}_R\times U(1{)}_{B-L}$ model with a Higgs sector that consists of a bidoublet and a doublet, and with a right-handed neutrino sector that includes one Dirac fermion and one Majorana fermion. This model explains the Run 1 CMS and ATLAS excess events in the $e^{+}{e}^{-}jj$, $jj$, $W{h}^0$ and $WZ$ channels in terms of a $W^{\prime }$ boson of mass near 1.9 TeV and of coupling $g_R$ in the 0.4--0.5 range, with the lower half preferred by limits on $t\bar{b}$ resonances and Run 2 results. The production cross section of this $W^{\prime }$ boson at the 13 TeV LHC is in the 700--900 fb range, allowing sensitivity in more than 17 final states. We determine that the $Z^{\prime }$ boson has a mass in the 3.4--4.5 TeV range and several decay channels that can be probed in Run 2 of the LHC, including cascade decays via heavy Higgs bosons.

28 pages, 5 figures. v2: comments on LHC Run 2 results included

References in corpus (14)

• The automated computation of tree-level and next-to-leading order differential cross sections, and their matching to parton shower simulations
• Search for high-mass dilepton resonances in pp collisions at sqrt(s) = 8 TeV with the ATLAS detector
• Search for new phenomena in the dijet mass distribution using $p-p$ collision data at $\sqrt{s}=8$ TeV with the ATLAS detector
• Search for resonances and quantum black holes using dijet mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
• Search for heavy neutrinos and W bosons with right-handed couplings in proton-proton collisions at sqrt(s) = 8 TeV
• Search for New Phenomena in Dijet Mass and Angular Distributions from $pp$ Collisions at $\sqrt{s}$ = 13 TeV with the ATLAS Detector
• Search for physics beyond the standard model in dilepton mass spectra in proton-proton collisions at sqrt(s) = 8 TeV
• Search for massive resonances in dijet systems containing jets tagged as W or Z boson decays in pp collisions at sqrt(s) = 8 TeV
• Search for massive resonances decaying into pairs of boosted bosons in semi-leptonic final states at sqrt(s) = 8 TeV
• Heavy neutrinos and the $pp\to lljj$ CMS data
• Signal of Right-Handed Charged Gauge Bosons at the LHC?
• Lepton Number Violation and W' Chiral Couplings at the LHC
• Search for $W^{\prime }\to t\bar{b}$ in the lepton plus jets final state in proton-proton collisions at a centre-of-mass energy of $\sqrt{s}$ = 8 TeV with the ATLAS detector
• Search for $W^{\prime }\to tb\to qqbb$ Decays in pp Collisions at $\sqrt{s}$ = 8 TeV with the ATLAS Detector

Cited by in corpus (6)

• Probing the Higgs Sector of the Minimal Left-Right Symmetric Model at Future Hadron Colliders
• Trinification can explain the di-photon and di-boson LHC anomalies
• Multiboson production in W' decays
• The ATLAS Diboson Resonance in Non-Supersymmetric SO(10)
• The Diboson Excess: Experimental Situation and Classification of Explanations; A Les Houches Pre-Proceeding
• Diboson resonances within a custodially protected warped extra-dimensional scenario