Elastic positivity from a modified forward dispersion relation constrains the twelve dim-8 Wilson coefficients of the photon–dark-photon EFT to a spectrahedral cone, with hierarchies for non-forward mixed amplitudes and distinct loci for kinetic-mixing and dark-axion UV completions.
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2 Pith papers cite this work. Polarity classification is still indexing.
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Pith papers citing it
years
2026 2verdicts
ACCEPT 2representative citing papers
No ALP signal is seen in three-photon events at Belle II; 95% CL upper limits on g_aγγ reach ~10⁻⁴ GeV⁻¹ and are the most restrictive over nearly 0.17–5 GeV/c².
citing papers explorer
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The Positivity Geometry of Photon--Dark-Photon Effective Field Theories
Elastic positivity from a modified forward dispersion relation constrains the twelve dim-8 Wilson coefficients of the photon–dark-photon EFT to a spectrahedral cone, with hierarchies for non-forward mixed amplitudes and distinct loci for kinetic-mixing and dark-axion UV completions.
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Search for axion-like particles decaying to two photons at Belle II
No ALP signal is seen in three-photon events at Belle II; 95% CL upper limits on g_aγγ reach ~10⁻⁴ GeV⁻¹ and are the most restrictive over nearly 0.17–5 GeV/c².