Speaker
Dr
Mathew McCaskey
(University of Kansas)
Description
We present a method to resolve combinatorial issues in multi-particle final state at hadron colliders. The use of kinematic variables such as MT2 and invariant masses significantly reduces combinatorial ambiguities in signal but at a cost of losing statistics. We illustrate the idea with a pair of gluinos which leads to 4-jets + E̸ T signal, and apply the same idea to the t-tbar dilepton system to resolve two-fold ambiguity in finding the correct combination of a b-jet and a lepton. Our method provides much larger efficiency with similar purity compared to results in recent studies.
Primary author
Dr
Mathew McCaskey
(University of Kansas)