Light spinless particle coupled to photons

Eduard Massó, Ramon Toldrà

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Resum

A pseudoscalar or scalar particle φ that couples to two photons but not to leptons, quarks, and nucleons would have effects in most of the experiments searching for axions, since these are based on the aγγ coupling. We examine the laboratory, astrophysical, and cosmological constraints on φ and study whether it may constitute a substantial part of the dark matter. We also generalize the φ interactions to possess SU(2)×U(1) gauge invariance, and analyze the phenomenological implications. © 1995 The American Physical Society.
Idioma originalEnglish
Pàgines (de-a)1755-1763
RevistaPhysical Review D
Volum52
Número4
DOIs
Estat de la publicacióPublicada - 1 de gen. 1995

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