Cosmology: Neutrinos also as one Kind of Dark Matter

Details Cosmology: Neutrinos also as one Kind of Dark Matter Cosmology: Neutrinos also as one Kind of Dark Matter

2010-12-06

arxiv.org/abs/1012.1082v3

Physics

High Energy Physics

High Energy Physics - Phenomenology

Scientific paper

In an effort to understand the large quantity of dark matter (25% versus 5% for the visible ordinary matter), we try to make the "family symmetry" as another gauge symmetry (and thus the source for another feeble interactions) and identify it as the main source of dark matter. One example is the SU_c(3) \times SU(2) \times U(1) \times SU_f(3) extended Standard Model, but all species in the "visible ordinary matter", except the neutrinos, don't couple, except indirectly or only through higher order, to SU_f(3) (the dark matter sector). In this note, we try to illustrate this aspect with an eye to detect the dark matter, through the detection of the neutrinos, the hypothetical species that couple directly to the dark-matter world. In other words, neutrinos may also be one kind of dark matter.

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