Chameleon Vector Bosons

Abstract

We show that for a force mediated by a vector particle coupled to a conserved U(1) charge, the apparent range and strength can depend on the size and density of the source, and the proximity to other sources. This "chameleon" effect is due to screening from a light charged scalar. Such screening can weaken astrophysical constraints on new gauge bosons. As an example we consider the constraints on chameleonic gauged B-L. We show that although Casimir measurements greatly constrain any B-L force much stronger than gravity with range longer than 0.1 microns, there remains an experimental window for a long range chameleonic B-L force. Such a force could be much stronger than gravity, and long or infinite range in vacuum, but have an effective range near the surface of the earth which is less than a micron.

10 pages

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Cited by in corpus (26)

• Vector Field Models of Inflation and Dark Energy
• Symmetron Cosmology
• Exploring nu signals in dark matter detectors
• Chameleons with Field Dependent Couplings
• Laboratory constraints on chameleon dark energy and power-law fields
• The cosmology of sub-MeV dark matter freeze-in
• Probing new spin-independent interactions through precision spectroscopy in atoms with few electrons
• Chameleon dark energy models with characteristic signatures
• Light new physics in XENON1T
• Light vector mediators facing XENON1T data
• A sub-GeV dark matter model
• Present and future status of light dark matter models from cosmic-ray electron upscattering
• CP violating effects in coherent elastic neutrino-nucleus scattering processes
• Screening Vector Field Modifications of General Relativity
• Cosmic History of Chameleonic Dark Matter in $F(R)$ Gravity
• Coherent Elastic Neutrino-Nucleus Scattering with directional detectors
• Apparent CPT Violation in Neutrino Oscillation Experiments
• Opportunities for probing $U(1{)}_{T3R}$ with light mediators
• Discrimination between Lambda-CDM, quintessence, and modified gravity models using wide area surveys
• Light, Long-Lived $B-L$ Gauge and Higgs Bosons at the DUNE Near Detector
• Chameleonic Theories: A Short Review
• Extending the Reach of Leptophilic Boson Searches at DUNE and MiniBooNE with Bremsstrahlung and Resonant Production
• Consequences of Fine-Tuning for Fifth Force Searches
• Dark Matter with Density-Dependent Interactions
• Beyond the Chameleon Mechanism
• Lepton Number Violating Electron Recoils in a $U(1{)}_{B-L}$ Model with Non-Standard Interactions