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http://hdl.handle.net/2289/4437
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| Title: | Constraints on radiative decay of the 17-keV neutrino from COBE measurements |
| Authors: | Nath, Biman B. |
| Keywords: | Background radiations
Particle-theory and field-theory models of the early Universe |
| Issue Date: | Sep-1992 |
| Publisher: | The American Physical Society |
| Citation: | Physical Review D, 1992, Vol.46, p2341 |
| 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. |
| Description: | Restricted Access. An open-access version is available at arXiv.org (one of the alternative locations) |
| URI: | http://hdl.handle.net/2289/4437 |
| ISSN: | 1550-7998
1550-2368 |
| Alternative Location: | http://adsabs.harvard.edu/abs/1992PhRvD..46.2341N
http://dx.doi.org/10.1103/PhysRevD.46.2341
http://arxiv.org/abs/astro-ph/9208004 |
| Copyright: | (1992) by the American Physical Society |
| Appears in Collections: | Research Papers (A&A)
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