Joachim Kopp (FNAL)
Collider limits on dark matter
Dark matter pair production at high energy colliders may leave
observable signatures in the energy and momentum spectra of the objects
recoiling against the dark matter. We discuss signatures of Dark Matter
in the jets + missing energy and photon + missing energy channels at the
Tevatron, at the LHC, and at LEP. Working in a largely model-independent
framework, we can convert the collider bounds into constraints on the
dark matter--nucleon scattering cross section and on the dark matter
annihilation cross section. Our bounds are highly competitive with those
from direct and indirect dark matter searches, especially for light
WIMPs and for WIMPS with spin-dependent interactions. For example, we
show that LEP rules out light (<~ 10 GeV) thermal relic dark matter if
annihilation into electrons is among the dominant annihilation channels.
Apr 18 at 4pm in Geo/Phys Room 407
The slides are available here.