On the Flavour Structure of Anomaly-free Hidden Photon Models

Abstract

Extensions of the Standard Model with an Abelian gauge group are constrained by gauge anomaly cancellation, so that only a limited number of possible charge assignments is allowed without the introduction of new chiral fermions. For flavour universal charges, couplings of the associated hidden photon to Standard Model fermions are flavour conserving at tree-level. We show explicitly that even the flavour specific charge assignments allowed by anomaly cancellation condition lead to flavour conserving tree-level couplings of the hidden photon to quarks and charged leptons \emph{if} the CKM or PMNS matrix can be successfully reconstructed. Further, loop-induced flavour changing couplings are strongly suppressed. As a consequence, the structure of the Majorana mass matrix is constrained and flavour changing tree-level couplings of the hidden photon to neutrino mass eigenstates are identified as a means to distinguish the $U(1{)}_{B-L}$ gauge boson from any other anomaly-free extension of the Standard Model without new chiral fermions. We present a comprehensive analysis of constraints and projections for future searches for a $U(1{)}_{B-3L_i}$ gauge boson, calculate the reach of resonance searches in $B$ meson decays and comment on the implications for non-standard neutrino interactions.

arXiv comment13 pages, 5 figures, 4 tables; v2: updated references, corrected COHERENT limit, matches published version

References in corpus (85)

• Evidence for Neutrino Oscillations from the Observation of Electron Anti-neutrinos in a Muon Anti-Neutrino Beam
• Secluded U(1) below the weak scale
• A facility to Search for Hidden Particles at the CERN SPS: the SHiP physics case
• New Fixed-Target Experiments to Search for Dark Gauge Forces
• The Belle II Physics Book
• Precision measurement of the 7Be solar neutrino interaction rate in Borexino
• Search for a dark photon in e+e- collisions at BABAR
• $B\to V{\ell }^{+}{\ell }^{-}$ in the Standard Model from Light-Cone Sum Rules
• Neutrino Trident Production: A Powerful Probe of New Physics with Neutrino Beams
• FASER: ForwArd Search ExpeRiment at the LHC
• Illuminating Dark Photons with High-Energy Colliders
• Dressing L_mu - L_tau in Color
• A new Generation of Standard Solar Models
• Running Neutrino Masses, Mixings and CP Phases: Analytical Results and Phenomenological Consequences
• FASER's Physics Reach for Long-Lived Particles
• Search for Invisible Decays of a Dark Photon Produced in e+e- Collisions at BaBar
• Hunting All the Hidden Photons
• Search for a new gauge boson in the $A^{\prime }$ Experiment (APEX)
• Serendipity in dark photon searches
• New Limits on Hidden Photons from Past Electron Beam Dumps
• New Exclusion Limits on Dark Gauge Forces from Proton Bremsstrahlung in Beam-Dump Data
• A facility to Search for Hidden Particles (SHiP) at the CERN SPS
• Search for $A^{\prime }\to {\mu }^{+}{\mu }^{-}$ decays
• First Measurement of Coherent Elastic Neutrino-Nucleus Scattering on Argon
• Searching for Long-lived Particles: A Compact Detector for Exotics at LHCb
• Evidence for nu_mu -> nu_e Oscillations from Pion Decay in Flight Neutrinos
• Probing Dark Forces and Light Hidden Sectors at Low-Energy e+e- Colliders
• Cosmology With a Very Light $L_{\mu }-L_{\tau }$ Gauge Boson
• Search for light massive gauge bosons as an explanation of the $(g-2{)}_{\mu }$ anomaly at MAMI
• New Exclusion Limits for Dark Gauge Forces from Beam-Dump Data
• Gauged L_mu - L_tau Symmetry at the Electroweak Scale
• Dark matter search in missing energy events with NA64
• Search for dark photons produced in 13 TeV $pp$ collisions
• Discovering New Light States at Neutrino Experiments
• Search for Dimuon Decays of a Light Scalar Boson in Radiative Transitions Upsilon -> gamma A0
• Search for a muonic dark force at BABAR
• Unbroken B-L Symmetry
• Limit on the production of a light vector gauge boson in phi meson decays with the KLOE detector
• Inclusive Dark Photon Search at LHCb
• Detecting and Studying High-Energy Collider Neutrinos with FASER at the LHC
• Search for Light Gauge Bosons of the Dark Sector at the Mainz Microtron
• Coherent Propagation of PeV Neutrinos and the Dip in the Neutrino Spectrum at IceCube
• Two-zero Textures of the Majorana Neutrino Mass Matrix and Current Experimental Tests
• Model for a Light Z' Boson
• Simultaneous Precision Spectroscopy of $pp$, ${}^7$Be, and $pep$ Solar Neutrinos with Borexino Phase-II
• Dark photons from charm mesons at LHCb
• Search for a vector gauge boson in phi meson decays with the KLOE detector
• Search for invisible decays of sub-GeV dark photons in missing-energy events at the CERN SPS
• Constraints on Dark Photon from Neutrino-Electron Scattering Experiments
• Search for long-lived scalar particles in $B^{+}\to K^{+}\chi ({\mu }^{+}{\mu }^{-})$ decays
• $B\to K{l}^{+}{l}^{-}$ decay form factors from three-flavor lattice QCD
• A first measurement of the interaction cross section of the tau neutrino
• Vanishing Minors in the Neutrino Mass Matrix from Abelian Gauge Symmetries
• Muon g-2 and searches for a new leptophobic sub-GeV dark boson in a missing-energy experiment at CERN
• Lepton Flavor Violating Non-Standard Interactions via Light Mediators
• Search for light vector boson production in $e^{+}{e}^{-}\to {\mu }^{+}{\mu }^{-}\gamma$ interactions with the KLOE experiment
• Proton size anomaly
• Flavor Gauge Models Below the Fermi Scale
• Limit on the production of a new vector boson in ${\mathrm{e}}^{+}{\mathrm{e}}^{-}\to \mathrm{U}\gamma$, U$\to {\pi }^{+}{\pi }^{-}$ with the KLOE experiment
• Revising Limits on Neutrino-Majoron Couplings
• Search for an $L_{\mu }$ $-$ $L_{\tau }$ gauge boson using Z $\to$ 4$\mu$ events in proton-proton collisions at $\sqrt{s}=$ 13 TeV
• Detecting the $L_{\mu }-L_{\tau }$ gauge boson at Belle II
• Implications of the first detection of coherent elastic neutrino-nucleus scattering (CEvNS) with Liquid Argon
• Probing the muon g_μ-2 anomaly, L_μ - L_τ gauge boson and Dark Matter in dark photon experiments
• MeV scale leptonic force for cosmic neutrino spectrum and muon anomalous magnetic moment
• Non-Standard Neutrino Interactions and Neutral Gauge Bosons
• Search for production of an invisible dark photon in ${\pi }^0$ decays
• Minimal Gauged U(1)${}_{L_{\alpha }-L_{\beta }}$ Models Driven into a Corner
• Searching for MeV-Scale Gauge Bosons with IceCube
• Lepton Flavorful Fifth Force and Depth-dependent Neutrino Matter Interactions
• LHC Constraints on a $B-L$ Gauge Model using Contur
• Projections for Dark Photon Searches at Mu3e
• Solar neutrino probes of the muon anomalous magnetic moment in the gauged $U(1{)}_{L_{\mu }-L_{\tau }}$
• On the possibility of search for $L_{\mu }-L_{\tau }$ gauge boson at Belle-II and neutrino beam experiments
• Detecting Hidden Particles with MATHUSLA
• Neutrino Oscillation Constraints on U(1)' Models: from Non-Standard Interactions to Long-Range Forces
• Atmospheric Trident Production for Probing New Physics
• Phenomenology of the $B-3L_{\tau }$ Gauge Boson
• Discovering leptonic forces using non-conserved currents
• Probing Light Gauge Bosons in Tau Neutrino Experiments
• Technical Proposal: FASERnu
• Search for a new gauge boson in ${\pi }^0$ decays
• Light vectors coupled to bosonic currents
• Searching for an invisible A' vector boson with DarkLight
• On search for a new light gauge boson from ${\pi }^0(\eta )\to \gamma +X$ decays in neutrino experiments

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