Cosmological limits on photon splitting

Details Cosmological limits on photon splitting Cosmological limits on photon splitting

Apr 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980phrvd..21.2122w&link_type=abstract

Physical Review D (Particles and Fields), Volume 21, Issue 8, 15 April 1980, pp.2122-2136

Mathematics

Logic

3

Scientific paper

General conservation laws and symmetries permit one photon to split into three all traveling in the original direction. But QED predicts that this process has vanishing probability. Observations of the 3-K microwave background and optical line spectra of quasars can be used to test this over cosmic length scales. We discuss photon splitting within the framework of a Lorentz-covariant, phenomenological theory. This theory predicts (a) spectral broadening, (b) frequency-dependent red-shift, and (c) multiple red-shifts for each source. Because these effects do not show up, we can set observational limits on the parameters that govern the splitting. In particular, the 3-K background implies that a photon of arbitrary wavelength λ propagating in flat space (i.e., without cosmological reddening) must have a decay lifetime larger than (6 cmλ)t, where t is the present age of the universe.

Affiliated with

Also associated with

No associations

Rating

Cosmological limits on photon splitting does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Cosmological limits on photon splitting, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Cosmological limits on photon splitting will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1699734