Speaker
Dr
Ian-Woo Kim
(University of Wisconsin-Madison)
Description
Considering two missing energy particles with odd parity can be decayed
from a heavy particle with even parity by two-step cascade,
we observe kinematic cusp structures in invariant mass
distributions of resonant particle decay into missing particles. Knowing a
parent mass from direct resonant decay into standard model particles, we
determine the mass of the intermediate particle and the final state
missing particle by using the cusped peak and the end point of the
distribution. The shape of the cusp distribution does not depend much on
the spins and chiral couplings of the particles involved. These features
may help identifying the masses of the missing particles
for various new physics with weak scale dark matter at the LHC.
Author
Dr
Ian-Woo Kim
(University of Wisconsin-Madison)
