Millicharged particles at electron colliders

Abstract

We propose to search for millicharged particles in electron colliders operated with the center-of-mass energies at $\mathcal{O}$(1-10) GeV, which include Belle II, BESIII, BaBar, and also the proposed experiment STCF. We use the monophoton final state at electron colliders to probe the parameter space of millicharged particles, that is spanned by millicharge $\epsilon$ and mass $m$. We find that electron colliders have sensitivity to the previously unexplored parameter space for millicharged particles with MeV-GeV mass: $\epsilon \lesssim \mathcal{O}(10^{-1})$ for $0.5$ GeV $\lesssim m\lesssim 3.5$ GeV in BaBar, $\epsilon \lesssim \mathcal{O}(10^{-3})$ for $0.1$ GeV $\lesssim m\lesssim 1.5$ GeV in BESIII, $\epsilon \lesssim 10^{-3}-10^{-2}$ for $0.1$ GeV $\lesssim m\lesssim 4$ GeV in Belle II, and $\epsilon \lesssim \mathcal{O}(10^{-4})$ for $1$ MeV $\lesssim m\lesssim 1$ GeV in STCF.

arXiv comment8 pages, 9 figures; v2: journal version

References in corpus (40)

• An absorption profile centred at 78 megahertz in the sky-averaged spectrum
• The Belle II Physics Book
• Supernova 1987A Constraints on Sub-GeV Dark Sectors, Millicharged Particles, the QCD Axion, and an Axion-like Particle
• Indirect Dark Matter Signatures in the Cosmic Dark Ages I. Generalizing the Bound on s-wave Dark Matter Annihilation from Planck
• Updated Bounds on Milli-Charged Particles
• The Stueckelberg $Z^{\prime }$ Extension with Kinetic Mixing and Milli-Charged Dark Matter From the Hidden Sector
• Insights on Dark Matter from Hydrogen during Cosmic Dawn
• A Lower Bound on the Mass of Cold Thermal Dark Matter from Planck
• Search for Millicharged Particles at SLAC
• Severely Constraining Dark Matter Interpretations of the 21-cm Anomaly
• A Stueckelberg Extension of the Standard Model
• Dark Matter, Millicharges, Axion and Scalar Particles, Gauge Bosons, and Other New Physics with LDMX
• Dark Radiation constraints on minicharged particles in models with a hidden photon
• Signs of Dark Matter at 21-cm?
• Constraining Light Dark Matter with Low-Energy e+e- Colliders
• Tighter Limits on Dark Matter Explanations of the Anomalous EDGES 21cm Signal
• A Critical Assessment of CMB Limits on Dark Matter-Baryon Scattering: New Treatment of the Relative Bulk Velocity
• Narrowing the window for millicharged particles by CMB anisotropy
• Reviving Millicharged Dark Matter for 21-cm Cosmology
• Constraints on millicharged particles from Planck
• Hidden fermion as milli-charged dark matter in Stueckelberg Z' model
• Millicharged particles in neutrino experiments
• Looking for milli-charged particles with a new experiment at the LHC
• Improved Limits on Millicharged Particles Using the ArgoNeuT Experiment at Fermilab
• Astrophysical Bounds on Milli-Charged Particles in Models with a Paraphoton
• Proton Fixed-Target Scintillation Experiment to Search for Minicharged Particles
• Search for millicharged particles in reactor neutrino experiments: a probe of the PVLAS anomaly
• Search for fractionally charged particles in pp collisions at sqrt(s) = 7 TeV
• Scattering of Dark Particles with Light Mediators
• Light dark states with electromagnetic form factors
• Direct millicharged dark matter cannot explain EDGES
• Probing millicharged particles with NA64 experiment at CERN
• Millicharged Particles in Liquid Argon Neutrino Experiments
• Minicharged Particles from the Sun: A Cutting-Edge Bound
• Constraints on millicharged particles with low threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory
• Probing dark matter particles at CEPC
• Detecting light leptophilic gauge boson at BESIII detector
• Probing millicharge at BESIII
• Constraints on MeV dark matter using neutrino detectors and their implication for the 21-cm results
• Search for $\psi (3686)\to \gamma {\eta }_c(\eta (1405))\to \gamma {\pi }^{+}{\pi }^{-}{\pi }^0$

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• STCF Conceptual Design Report: Volume 1 -- Physics & Detector
• Cosmological Constraints on Dark Matter Interactions with Ordinary Matter
• New Constraints on Millicharged Particles from Cosmic-ray Production
• Millicharged Cosmic Rays and Low Recoil Detectors
• Dark sector-photon interactions in proton-beam experiments
• Passage of millicharged particles in the electron beam-dump: refining constraints from SLACmQ and estimating sensitivity of NA64e
• Probing the $L_{\mu }-L_{\tau }$ gauge boson at electron colliders
• Probing sub-GeV leptophilic dark matter at Belle II and NA64
• Neutrino dipole portal at electron colliders
• On direct observation of millicharged particles at $c$-$\tau$ factories and other $e^{+}{e}^{-}$-colliders
• Probing light exotics from a hidden sector at $c$-$\tau$ factories with polarized electron beams
• XQC and CSR constraints on strongly interacting dark matter with spin and velocity dependent cross sections
• Characterizing Dark Matter Signals with Missing Momentum Experiments
• Relativistic Impulse Approximation in the Atomic Ionization Process induced by Millicharged Particles
• Constraining nonstandard neutrino interactions at electron colliders
• Dark states with electromagnetic form factors at electron colliders
• Muon g-2 from Millicharged Hidden Confining Sector
• Can millicharge be probed at future Super Tau Charm Facility via mono-${\pi }^0$ searches?