Transparency of the universe to TeV photons in some models of quantum gravity

Details Transparency of the universe to TeV photons in some models of quantum gravity Transparency of the universe to TeV photons in some models of quantum gravity

Jun 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999aph....11..117k&link_type=abstract

Astroparticle Physics, Volume 11, Issue 1-2, p. 117-118.

Physics

23

Scientific paper

If the photon dispersion relation is (pc)^2= E^2 + E^3/E_QG, as suggested in certain approaches to quantizing gravity, then high energy photons may be unable to pair-create on cosmic microwave background (CBR) and infrared background (IR) photons. If E_QG~10^16 GeV, powerful sources of TeV radiation, e.g. in AGNs, could be detectable out to large redshifts.

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