Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2012-04-11
Physics
High Energy Physics
High Energy Physics - Phenomenology
Updated minireview for the PDG. Note: Status is frozen as of November 2011; as per usual PDG policy, no attempt at complete re
Scientific paper
This is the mini-review on Dark Matter in the 2012 edition of the Particle Data Group's Review of Particle Properties. After briefly summarizing the arguments in favor of the existence of Dark Matter, we list possible candidates, ranging in mass from a fraction of an eV (e.g., axions) to many solar masses (e.g., primordial black holes), and discuss ways to detect them. The main emphasis is on Weakly Interacting Massive Particles (WIMPs). A large international effort is being made to detect them directly, or else to detect their annihilation products. We explain why we consider all claims to have established a positive signal for WIMPs in either direct or indirect detection to be premature. We also introduce the concept of a {\it WIMP safe} minimal mass; below this mass, the interpretation of a given direct search experiment depends strongly on the tail of the WIMP velocity distribution and/or on the experimental energy resolution.
Drees Manuel
Gerbier Gilles
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