Publication: Astrophysical constraints on a light spinless particle coupled to photons
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Date
1996-12-01
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Undergraduate course
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Abstract
We examine further astrophysical constraints on a light spinless particle coupled only to photons and proposed by Massó and Toldra. We consider constraints coming from measurements of extra galactic background and from ionization of HI clouds.
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English
Citation
Modern Physics Letters A, v. 11, n. 9, p. 715-722, 1996.
