Neutrino constraints on the dark matter total annihilation cross section
نویسندگان
چکیده
Hasan Yüksel, Shunsaku Horiuchi, John F. Beacom, and Shin’ichiro Ando Department of Physics, Ohio State University, Columbus, Ohio 43210, USA Center for Cosmology and Astro-Particle Physics, Ohio State University, Columbus, Ohio 43210, USA Department of Physics, School of Science, University of Tokyo, Tokyo 113-0033, Japan Department of Astronomy, Ohio State University, Columbus, Ohio 43210, USA California Institute of Technology, Mail Code 130-33, Pasadena, California 91125, USA (Received 12 July 2007; published 17 December 2007)
منابع مشابه
Upper bound on the dark matter total annihilation cross section.
We consider dark matter annihilation into standard model particles and show that the least detectable final states, namely, neutrinos, define an upper bound on the total cross section. Calculating the cosmic diffuse neutrino signal, and comparing it to the measured terrestrial atmospheric neutrino background, we derive a strong and general bound. This can be evaded if the annihilation products ...
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