Evidence for a dark matter particle

Particle Dark Matter: Evidence, Candidates and Constraints

In this review article, we discuss the current status of particle dark matter, including experimental evidence and theoretical motivations. We discuss a wide array of candidates for particle dark matter, but focus on neutralinos in models of supersymmetry and Kaluza-Klein dark matter in models of universal extra dimensions. We devote much of our attention to direct and indirect detection techni...

Particle Candidates for Dark Matter

Evidence for Dark Matter

By measuring the dimensionless product ( z =v c ) 2 R 0 =h one can estimate the ratio of disk mass to total mass interior to the Sun's orbit, where z is velocity dispersion perpendicular to the disk appropriate to some tracer population, h is the scale height of that tracer, and v c is the circular velocity at the the Sun's distance from the center of the Milky Way,R 0 . While there are model d...

Particle Dark Matter

There is plenty of evidence that most matter in the universe is dark (non–luminous). Particle physics offers several possible explanations. In this talk I focus on cold dark matter; the most promising candidates are then axions and the lightest supersymmetric particle. I briefly summarize estimates for the present relic density of these particles, and describe efforts to detect them. To appear ...

Dark Matter and Particle Physics

Astrophysicists now know that 80% of the matter in the universe is ‘dark matter’, composed of neutral and weakly interacting elementary particles that are not part of the Standard Model of particle physics. I will summarize the evidence for dark matter. I will explain why I expect dark matter particles to be produced at the CERN LHC. We will then need to characterize the new weakly interacting ...