Title:
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Light spinless particle coupled to photons
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Author:
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Massó i Soler, Eduard, 1954-; Toldrà Sabaté, Ramon
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Other authors:
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Universitat de Barcelona |
Abstract:
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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. |
Subject(s):
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-Astronomia -Astrofísica -Partícules (Física nuclear) -Astronomy -Astrophysics -Particles (Nuclear physics) -Matèria fosca (Astronomia) -Dark matter (Astronomy) |
Rights:
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(c) The American Physical Society, 1995
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Document type:
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Article Article - Published version |
Published by:
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The American Physical Society
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