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2019:groups:tools:correlations [2019/06/27 16:14] sezen.sekmen |
2019:groups:tools:correlations [2019/06/27 17:10] (current) sezen.sekmen [Quantifying overlaps between analysis search regions using ADLs] |
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==== Quantifying overlaps between analysis search regions using ADLs ==== | ==== Quantifying overlaps between analysis search regions using ADLs ==== | ||
- | Members: Sezen, Wolfgang (Harrison) | + | Members: Sezen, Wolfgang (, Harrison) |
- | Find and visualize overlaps in a model-independent way, without generating events. Directly sample the event selection. Targeted for analysis design phase. | + | Find and visualize overlaps in a model-independent way, without generating events using simple descriptions done using an [[[[2019:groups:tools:adl|analysis description language]]. Directly sample the event selection. Useful for analysis design phase, or quick comparisons within experiments (e.g. Run2 CMS SUSY pMSSM combination) |
* Start from the analysis description, which lists objects and event selections. | * Start from the analysis description, which lists objects and event selections. | ||
- | * Construct a feature space from all mathematically orthogonal variables (e.g. MET, jet1.pt, jet2.pt, electron1.eta, ...). | + | * Construct a feature space from all mathematically orthogonal "basic" variables (e.g. MET, jet1.pt, jet2.pt, electron1.eta, ...). |
- | * Randomly sample the feature space for each analysis. | + | * Randomly sample the feature space for each analysis based on cuts on the feature space components (jet1.pt > 100, MET > 299, etc.). |
- | * Use the sampled points to compute values for variables such as HT(jets), dphi(jets), MT(lepton, MET), etc. | + | * Use the sampled points to compute values for "composite" variables such as HT(jets), dphi(jets), MT(lepton, MET), etc. |
* Compare feature spaces between analyses, find and visualize overlaps and exclusions. | * Compare feature spaces between analyses, find and visualize overlaps and exclusions. | ||
+ | * As a very simple first step, we simply check if two analyses are disjoint in any of the basic variables. | ||