Baryon fraction in the universe, antiproton lifetime, and the diffuse radiation

Details Baryon fraction in the universe, antiproton lifetime, and the diffuse radiation Baryon fraction in the universe, antiproton lifetime, and the diffuse radiation

Jul 1995

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1995aipc..336..520s&link_type=abstract

Dark matter. AIP Conference Proceedings, Volume 336, pp. 520-526 (1995).

Computer Science

Protons And Neutrons, Background Radiations, Particle-Theory And Field-Theory Models Of The Early Universe

Scientific paper

We have calculated the diffuse spectrum in the energy region between 0.1 keV and 500 MeV, which arises from the decay of antiprotons in the baryon Symmetric Universe. Comparing this with the observation, we derived a life time of >~2.3×10 24 sec for the antiproton, which is 17 orders better than the one determined from laboratory experiments. We predict a cut-off in the diffuse radiation beyond 460 MeV, and if seen, would provide evidence for the existence of antimatter domains in the universe.

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