Mass Measurement in Boosted Decay Chains with Missing Energy

Abstract

We explore a novel method of mass reconstruction in events with missing transverse momentum at hadron colliders. In events with sizeable boost factors in the final steps of dual multi-stage decay chains, the missing energy particles may each be approximately collinear with a visible standard model particle, spanning a narrow "MET-cone." We exploit this collinear approximation, when applicable, to reconstruct the masses of exotica.

5 pages, 5 figures, v2: typos fixed, references added, figures aesthetically improved

References in corpus (6)

• PYTHIA 6.4 Physics and Manual
• Gluino Stransverse Mass
• Minimal Kinematic Constraints and MT2
• Accurate Mass Determinations in Decay Chains with Missing Energy
• A Review of the Mass Measurement Techniques proposed for the Large Hadron Collider
• Mass measurement in boosted decay systems at hadron colliders

Cited by in corpus (5)

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• Identifying Phase Space Boundaries with Voronoi Tessellations
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• Applying Machine Learning Techniques To Intermediate-Length Cascade Decays