An Effective Z'

Abstract

We describe a method to couple Z' gauge bosons to the standard model (SM), without charging the SM fields under the U(1)', but instead through effective higher dimension operators. This method allows complete control over the tree-level couplings of the Z' and does not require altering the structure of any of the SM couplings, nor does it contain anomalies or require introduction of fields in non-standard SM representations. Moreover, such interactions arise from simple renormalizable extensions of the SM - the addition of vector-like matter that mixes with SM fermions when the U(1)' is broken. We apply effective Z' models as explanations of various recent anomalies: the D0 same-sign dimuon asymmetry, the CDF W+di-jet excess and the CDF top forward-backward asymmetry. In the case of the W+di-jet excess we also discuss several complementary analyses that may shed light on the nature of the discrepancy. We consider the possibility of non-Abelian groups, and discuss implications for the phenomenology of dark matter as well.

44 pages; 5 figures. References added, discussion of gamma+jj constraints updated

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Cited by in corpus (63)

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• Z' models for the LHCb and g-2 muon anomalies
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• Neutrino-Electron Scattering: General Constraints on Z' and Dark Photon Models
• Neutrinophilic Non-Standard Interactions
• Hidden GeV-scale interactions of quarks
• A New Light Particle in B Decays?
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• Implications for New Physics in $b\to s\mu \mu$ transitions after recent measurements by Belle and LHCb
• Exotic decays of the 125 GeV Higgs boson at future $e^{+}{e}^{-}$ lepton colliders
• Electrophobic Scalar Boson and Muonic Puzzles
• Gauging the accidental symmetries of the Standard Model, and implications for the flavour anomalies
• Search for same-sign top-quark pair production at sqrt(s) = 7 TeV and limits on flavour changing neutral currents in the top sector
• Understanding the MiniBooNE and the muon and electron $g-2$ anomalies with a light $Z^{\prime }$ and a second Higgs doublet
• Aligned and Spontaneous Flavor Violation
• Light Resonances and the Low-$q^2$ Bin of $R_{K^{\ast }}$
• Mono-Z': searches for dark matter in events with a resonance and missing transverse energy
• Z'-gauge Bosons as Harbingers of Low Mass Strings
• Lepton-Flavored Asymmetric Dark Matter and Interference in Direct Detection
• On the Validity of Dark Matter Effective Theory
• Top-philic $Z^{\prime }$ Forces at the LHC
• On Light Resonance Interpretations of the B Decay Anomalies
• Light vectors coupled to bosonic currents
• Dark Higgs Models at the 7 TeV LHC
• Rare b hadron decays at the LHC
• Effective Field Theory of Stückelberg Vector Bosons
• Signatures of Resonant Super-Partner Production with Charged-Current Decays
• New or $\nu$ Missing Energy? Discriminating Dark Matter from Neutrino Interactions at the LHC
• Z' near the Z-pole
• Constraining rare B decays by ${\mu }^{+}{\mu }^{-}\to tc$ at future lepton colliders
• Searching for Muonphilic Dark Sectors with Proton Beams
• Fingerprinting the Top quark FCNC via anomalous $Ztq$ couplings at the LHeC
• Ultraviolet Completions of Axigluon Models and Their Phenomenological Consequences
• Top Quark Forward-Backward Asymmetry and Anomalous Right-Handed Charge Currents
• Effects of Family Nonuniversal Z' Boson on Leptonic Decays of Higgs and Weak Bosons
• Leptophobic boson signals with leptons, jets and missing energy
• D0 dimuon charge asymmetry from B_s system with Z' couplings and the recent LHCb result
• Imprints of CP violation asymmetries in rare ${\Lambda }_b\to \Lambda {\ell }^{+}{\ell }^{-}$ decay in family non-universal $Z^{\prime }$ model
• Analysis of ${\Lambda }_b\to \Lambda l^{+}{l}^{-}$ rare decays in a non-universal $Z^{\prime }$ model
• S-Channel Dark Matter Simplified Models and Unitarity
• A Comparative Study of Z${}^{\prime }$ mediated Charged Lepton Flavor Violation at future lepton colliders
• Various Models Mimicking the SM Higgs Boson
• Uncovering tau leptons-enriched semi-visible jets at the LHC
• Correlating the CDF $W$-boson mass shift with the $b\to s{\ell }^{+}{\ell }^{-}$ anomalies
• What the Tevatron Found?
• Effects of neutral $Z^{\prime }$ boson in $B_s\to \varphi {\ell }^{+}{\ell }^{-}$ decay with polarized $\varphi$ and the unpolarized and polarized $CP$ violation asymmetry
• Analysis of Angular Observables of ${\Lambda }_b\to \Lambda (\to p\pi ){\mu }^{+}{\mu }^{-}$ Decay in Standard and $Z^{\prime }$ Models
• Systematically Searching for New Resonances at the Energy Frontier using Topological Models
• Study of $B_s^0\to l^{+}{l}^{-}\gamma$ decays in the nonuniversal Z' model
• New Physics Interpretations of the B-->K*mu+mu- Anomaly
• Constraints on a Light Leptophobic Mediator from LEP Data
• Towards the Identification of New Physics through Correlations between Flavour Observables
• Anomaly Puzzle, Curved-Spacetime Spinor Hamiltonian, and String Phenomenology
• LHC Test of CDF $Wjj$ anomaly
• CP Violation in the $B_s^0$ system
• Multi-step production of a diphoton resonance