Speaker: Tao Han
Title: Missing Energy at the LHC: The Dark Matter Connection


One of the most challenging tasks in collider experiments is to determine
the mass of missing particles, predicted in theories beyond the Standard
Model, which are often well-motivated cold dark matter candidates.
After a recollection of the observations of missing energy events in
high energy experiments, we discuss the prospects of discovering new
physics at the LHC with the large missing energy events, and comment
on the difficulty for measuring the missing particle mass.
We propose to search for a new class of processes, the ``antler decay".
The unique kinematics could allow for determination of the missing
particle mass, which would be an important piece of information to
cross-check with the direct and indirect searches for dark matter in 
astroparticle and cosmological experiments.