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New constraints on a light spinless particle coupled to photons

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We obtain new stringent constraints on a light spinless particle f coupled only to photons at low energies, considering its effects on the extragalactic photon background, the black-body spectrum of the cosmic microwave background radiation and the cosmological abundance of deuterium.

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Reproducció digital del document publicat en format paper, proporcionada per PROLA i http://dx.doi.org/10.1103/PhysRevD.55.7967

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Articles publicats en revistes (Física de la Matèria Condensada)

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New constraints on a light spinless particle coupled to photons