English

Revisiting Combinatorial Ambiguities at Hadron Colliders with MT2

High Energy Physics - Phenomenology 2015-05-30 v1 High Energy Physics - Experiment

Abstract

We present a method to resolve combinatorial issues in multi-particle final states at hadron colliders. The use of kinematic variables such as MT2 and invariant mass significantly reduces combinatorial ambiguities in the signal, but at a cost of losing statistics. We illustrate this idea with gluino pair production leading to 4 jets +\met+\met in the final state as well as ttˉt\bar{t} production in the dilepton channel. Compared to results in recent studies, our method provides greater efficiency with similar purity

Keywords

Cite

@article{arxiv.1109.1563,
  title  = {Revisiting Combinatorial Ambiguities at Hadron Colliders with MT2},
  author = {Philip Baringer and Kyoungchul Kong and Mathew McCaskey and Daniel Noonan},
  journal= {arXiv preprint arXiv:1109.1563},
  year   = {2015}
}

Comments

20 pages, 7 figures, 10 tables

R2 v1 2026-06-21T19:01:22.247Z