Constraints on radiative decay of the 17-keV neutrino from COBE measurements

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DC Field	Value	Language
dc.contributor.author	Nath, Biman B.	-
dc.date.accessioned	2012-05-07T08:35:16Z	-
dc.date.available	2012-05-07T08:35:16Z	-
dc.date.issued	1992-09	-
dc.identifier.citation	Physical Review D, 1992, Vol.46, p2341	en
dc.identifier.issn	1550-7998	-
dc.identifier.issn	1550-2368	-
dc.identifier.uri	http://hdl.handle.net/2289/4437	-
dc.description	Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations)	en
dc.description.abstract	It is shown that, for a nontrivial radiative decay channel of the 17-keV neutrino, the photons would distort the microwave background radiation through ionization of the Universe. The constraint on the branching ratio of such decays from Cosmic Background Explorer measurements is found to be more stringent than that from SN 1987A. The limit on the branching ratio in terms of the Compton y parameter is Bγ<=1.5×10-7[τν/(1011 sec)]0.45 (y/10-3)1.11h-1 for an Ω=1, ΩB=0.1 universe.	en
dc.language.iso	en	en
dc.publisher	The American Physical Society	en
dc.relation.uri	http://adsabs.harvard.edu/abs/1992PhRvD..46.2341N	en
dc.relation.uri	http://dx.doi.org/10.1103/PhysRevD.46.2341	en
dc.relation.uri	http://arxiv.org/abs/astro-ph/9208004	en
dc.rights	(1992) by the American Physical Society	en
dc.subject	Background radiations	en
dc.subject	Particle-theory and field-theory models of the early Universe	en
dc.title	Constraints on radiative decay of the 17-keV neutrino from COBE measurements	en
dc.type	Article	en
Appears in Collections:	Research Papers (A&A)

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