1995/03/31 by Eduard Massó, E. Masso, Ramon Toldrà +1 · 3 citations
Physics and Astronomy · #Atomic and Subatomic Physics Research #Dark Matter and Cosmic Phenomena #Particle physics theoretical and experimental studies #astro-ph #hep-ph
paper · pdf · doi:10.1103/physrevd.52.1755
published as Phys.Rev.D52:1755-1763,1995 · LaTex, 20p., 6 figures. Changes in sections 4, 5 and figure 2, our bounds are now more stringent. To be published in Physical Review D
arxiv created 1995/06/07 · openalex publication_date 1995/08/15 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01
A pseudoscalar or scalar particle \ensuremathφ 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\ensuremathγ\ensuremathγ coupling. We examine the laboratory, astrophysical, and cosmological constraints on \ensuremathφ and study whether it may constitute a substantial part of the dark matter. We also generalize the \ensuremathφ interactions to possess SU(2)\ifmmode×\else\texttimes\fiU(1) gauge invariance, and analyze the phenomenological implications.