Solar Chameleons
arXiv:1004.1846 · doi:10.1103/PhysRevD.82.043007
Abstract
We analyse the creation of chameleons deep inside the sun and their subsequent conversion to photons near the magnetised surface of the sun. We find that the spectrum of the regenerated photons lies in the soft X-ray region, hence addressing the solar corona problem. Moreover, these back-converted photons originating from chameleons have an intrinsic difference with regenerated photons from axions: their relative polarisations are mutually orthogonal before Compton interacting with the surrounding plasma. Depending on the photon-chameleon coupling and working in the strong coupling regime of the chameleons to matter, we find that the induced photon flux, when regenerated resonantly with the surrounding plasma, coincides with the solar flux within the soft X-ray energy range. Moreover, using the soft X-ray solar flux as a prior, we find that with a strong enough photon-chameleon coupling the chameleons emitted by the sun could lead to a regenerated photon flux in the CAST pipes, which could be within the reach of CAST with upgraded detector performance. Then, axion helioscopes have thus the potential to detect and identify particles candidates for the ubiquitous dark energy in the universe.
16 pages, 6 figures.
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- Chameleon Dark Energy and Atom Interferometry
- Atomic Precision Tests and Light Scalar Couplings
- Direct detection of dark energy: the XENON1T excess and future prospects
- Chameleon Field Theories
- Searching for chameleon-like scalar fields with the ammonia method. II. Mapping of cold molecular cores in NH3 and HC3N lines
- Search for chameleons with CAST
- Axion Astrophysics
- Towards a medium-scale axion helioscope and haloscope
- Chameleon foreCAST
- Detecting solar chameleons through radiation pressure
- Improved Search for Solar Chameleons with a GridPix Detector at CAST
- Is the -boson mass enhanced by the axion-like particle, dark photon, or chameleon dark energy?
- Cosmology of Chameleons with Power-Law Couplings
- Reconciling hints on axion-like-particles from high-energy gamma rays with stellar bounds
- Designing dark energy afterglow experiments
- Light bosons and photospheric solutions to the solar abundance problem
- Solar Axion Search Technique with Correlated Signals from Multiple Detectors
- Chameleonic Theories: A Short Review
- Solar chameleons: Novel channels
- Imprints of screened dark energy on nonlocal quantum correlations
- Chameleon Fragmentation
- One-electron atoms in screened modified gravity
- Constraints on scalar coupling to electromagnetism
- Signatures of Solar Chameleons in the Earth's Magnetic Field