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Addendum to "Distinguishing Spins in Decay Chains at the Large Hadron Collider"


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Article

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Authors

Athanasiou, Christiana 
Lester, Christopher G 
Smillie, Jennifer M 
Webber, Bryan R 

Abstract

We extend our earlier study of spin correlations in the decay chain DCq, CBlnear, BAlfar, where A,B,C,D are new particles with known masses but undetermined spins, lnear and lfar are opposite-sign same-flavour charged leptons and A is invisible. Instead of looking at the observable 2- and 3-particle invariant mass distributions separately, we compare the full three-dimensional phase space distributions for all possible spin assignments of the new particles, and show that this enhances their distinguishability using a quantitative measure known as the Kullback-Leibler distance.

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Keywords

hep-ph, hep-ph

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Publisher

High Energy Physics, Cavendish Laboratory, University of Cambridge

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