Gamma rays from SN 1987A due to pseudoscalar conversion
Grifols, Josep Antoni (Institut de Física d'Altes Energies)
Massó, Eduard (Universitat Autònoma de Barcelona. Departament de Física)
Toldrà Sabaté, Ramon (Institut de Física d'Altes Energies)
American Physical Society

Date:	1996
Abstract:	A light pseudoscalar coupled to two photons would be copiously emitted by the core of a supernova. Part of this flux would be converted to γ rays by the galactic magnetic field. Measurements on the SN 1987A γ-ray flux by the Gamma-Ray Spectrometer on the Solar Maximum Mission satellite already imply a bound on the coupling g<3×10-12GeV-1. The improved generation of satellite-borne detectors, like EGRET or the project GLAST, could be able to detect a pseudoscalar-to-photon signal from a nearby supernova, for allowed values of g.
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Language:	Anglès
Document:	Article ; Versió publicada
Published in:	Physical review letters, Vol. 77, Issue 12 (September 1996) , p. 2372-2375, ISSN 1079-7114

DOI: 10.1103/PhysRevLett.77.2372

4 p, 124.9 KB

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Research literature > UAB research groups literature > Research Centres and Groups (research output) > Experimental sciences > Institut de Física d’Altes Energies (IFAE)
Articles > Published articles