Particle Dark Matter from Physics Beyond the Standard Model
نویسنده
چکیده
So far the existence of the dark matter (DM) is our best experimental evidence for new physics beyond the Standard Model. The most recent WMAP data [1] confirm the standard cosmological model and precisely pin down the amount of cold dark matter as 0.094 < ΩCDMh 2 < 0.129, in accord with earlier indications. Nevertheless, the exact nature of the dark matter still remains a mystery, as all known particles are excluded as DM candidates. This makes the dark matter problem the most pressing phenomenological motivation for particles and interactions beyond the Standard Model (BSM). The weakly interacting massive particles (WIMPs) represent a whole class of particle dark matter candidates which are well motivated by both particle physics and astrophysics. On the particle physics side, many BSM theories predict stable WIMPs. On the astrophysics side, the result from the calculation of the WIMP thermal relic density falls in the right ballpark. WIMPs also offer excellent opportunities for detection: since they must have been able to annihilate sufficiently fast in the Early Universe, they should also produce observable signals in direct and indirect dark matter detection experiments. Generally speaking, it is rather easy to cook
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