Photon oscillations and cosmic background radiation

Details Photon oscillations and cosmic background radiation Photon oscillations and cosmic background radiation

Dec 1983

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983natur.306..765g&link_type=abstract

Nature, Volume 306, Issue 5945, pp. 765-766 (1983).

Physics

32

Scientific paper

The possible existence of a second species of photon which is uncoupled to known forms of matter is considered here. Explicit mass terms in the lagrangian can give rise to photon masses and to oscillations of photon identity, without sacrificing the ability of the gauge theory to be renormalized. Current upper limits on the photon mass are ~6 × 10-16eV c-2 (refs 1, 2). Photon oscillations corresponding to much smaller masses can significantly alter the spectral shape of the cosmic background radiation (CBR). Indeed, we show that the apparent discrepancy3 between theoretical and observed CBR spectra can be resolved in terms of photon oscillations, and a mass parameter of 5 × 10-18 eV c-2.

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