If you use Shower Deconstruction, please consider to reference
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Description of Shower Deconstruction

Shower deconstruction is a method to look for new physics in a hadronic environment. It is the first approach of an all-order resummed matrix element method.

By calculating the likelihood if a fatjet looks more like signal or more like background

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it allows to perform an hypothesis test. By specifying where to cut on chi, you can purify your sample and reject QCD backgrounds.

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Source Code for Shower Deconstruction

You can download the source code here . It includes a README file and an example code that explains how you can use shower deconstruction in your analysis.

Experimental validation and application of Shower Deconstruction