First direct limits on Lightly Ionizing Particles with electric charge less than $e/6$

Abstract

While the Standard Model of particle physics does not include free particles with fractional charge, experimental searches have not ruled out their existence. We report results from the Cryogenic Dark Matter Search (CDMS II) experiment that give the first direct-detection limits for cosmogenically-produced relativistic particles with electric charge lower than $e$/6. A search for tracks in the six stacked detectors of each of two of the CDMS II towers found no candidates, thereby excluding new parameter space for particles with electric charges between $e$/6 and $e$/200.

5 pages, 6 figures, submitted to PRL

References in corpus (5)

• Results from the Final Exposure of the CDMS II Experiment
• Results from a Low-Energy Analysis of the CDMS II Germanium Data
• Kinetic Mixing of the Photon with Hidden U(1)s in String Phenomenology
• Milli-Charged Dark Matter in Quantum Gravity and String Theory
• Analysis of the low-energy electron-recoil spectrum of the CDMS experiment

Cited by in corpus (18)

• Feebly-Interacting Particles:FIPs 2020 Workshop Report
• A Next-Generation Liquid Xenon Observatory for Dark Matter and Neutrino Physics
• New Constraints on Millicharged Particles from Cosmic-ray Production
• White Paper on New Opportunities at the Next-Generation Neutrino Experiments (Part 1: BSM Neutrino Physics and Dark Matter)
• Proton Fixed-Target Scintillation Experiment to Search for Minicharged Particles
• Detecting Dark Blobs
• FORMOSA: Looking Forward to Millicharged Dark Sectors
• Search for millicharged particles in proton-proton collisions at $\sqrt{s}=13$ TeV
• First Limit on the Direct Detection of Lightly Ionizing Particles for Electric Charge as Low as $e$/1000 with the \textsc{Majorana Demonstrator}
• Constraints on millicharged particles with low threshold germanium detectors at Kuo-Sheng Reactor Neutrino Laboratory
• Direct Detection Limits on Heavy Dark Matter
• A Milli-Window to Another World
• Limits on the abundance of millicharged particles bound to matter
• CP-violating Dark Photon Interaction
• Constraints on Lightly Ionizing Particles from CDMSlite
• Search for relativistic fractionally charged particles in space
• Search for millicharged particles in proton-proton collisions at $\sqrt{s}=13.6$ TeV
• The Forward Physics Facility at the High-Luminosity LHC