August 28, 2011 to September 2, 2011
Fermilab
US/Central timezone
Slides available on Indico -- there are no formal proceedings

Resolving Combinatorical Ambiguities at Hadron Colliders with $MT_{2}$

Aug 28, 2011, 12:10 PM
25m
A: Wilson Hall 1 West

A: Wilson Hall 1 West

SUSY: phenomenology Parallel Session 1

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)

Presentation materials