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Title: Light spinless particle coupled to photons
Author: Massó i Soler, Eduard, 1954-
Toldrà Sabaté, Ramon
Keywords: Astronomia
Partícules (Física nuclear)
Particles (Nuclear physics)
Dark matter (Astronomy)
Matèria fosca (Astronomia)
Issue Date: 1995
Publisher: The American Physical Society
Abstract: A pseudoscalar or scalar particle $\phi$ 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 $a \gamma \gamma $ coupling. We examine the laboratory, astrophysical and cosmological constraints on $\phi$ and study whether it may constitute a substantial part of the dark matter. We also generalize the $\phi$ interactions to possess $SU(2) \times U(1)$ gauge invariance, and analyze the phenomenological implications.
Note: Reproducció digital del document publicat en format paper, proporcionada per PROLA i
It is part of: Physical Review D, 1995, vol. 52, núm, 4, p. 1755-1763
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ISSN: 0556-2821
Appears in Collections:Articles publicats en revistes (Física de la Matèria Condensada)

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