Limits on masses and number of neutral weakly interacting particles

Details Limits on masses and number of neutral weakly interacting particles Limits on masses and number of neutral weakly interacting particles

Jul 1977

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977phla...69...85h&link_type=abstract

Physics Letters, vol. 69B, July 18, 1977, p. 85-88.

Physics

40

Big Bang Cosmology, Neutrinos, Particle Interactions, Particle Mass, Gravitation Theory, Particle Energy

Scientific paper

Limits on the masses and number of neutral weakly interacting particles are derived using cosmological arguments. No such particles with a mass between 120 eV and 3 GeV can exist within the usual big bang model. Similar, but much more severe, restrictions follow for particles that interact only gravitationally. This seems of importance with respect to supersymmetric theories.

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