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2019:groups:tools:likelihoods [2019/06/20 22:58] andy.buckley |
2019:groups:tools:likelihoods [2019/07/26 12:05] (current) andy.buckley |
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======= Likelihood construction and applications ====== | ======= Likelihood construction and applications ====== | ||
- | //Members: Andy B, Ben F// | + | //Members: Andy B, Ben F, Kar D, David Y, **Louie C**, Sabine// |
Analysis combination: | Analysis combination: | ||
* subsets of compatible SRs | * subsets of compatible SRs | ||
* automatic determination of (approximate) orthogonality -- maybe using shared samples | * automatic determination of (approximate) orthogonality -- maybe using shared samples | ||
+ | * Demonstration of systematic correlation between analyses from SM uncertainty breakdowns (DY, LC) | ||
+ | - LC: I mentioned yesterday the list of HEPData Entries which have uncertainty breakdowns. See here: https://gitlab.cern.ch/lhcewkwg/lhcewkwg-vjets/correlations-library/blob/master/RivetAnalysesWithErrorBreakdown.md | ||
+ | - LC: The info is now propagated into YODA files automatically when downloaded from HEPData (since Nov 2018) | ||
+ | - LC: The error breakdown can be converted to a covariance matrix with these tools quite trivially. Here are some example tools to do so from the YODA files downloaded from HEPData: https://gitlab.cern.ch/lhcewkwg/lhcewkwg-vjets/correlations-library | ||
+ | - LC: Once it is in a cov matrix form, is should be easy to use that for a simplified likelihood, AFAIK? | ||
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+ | Full import of Rivet-HepData correlations and application to test B-L contur scan: http://www.hep.ucl.ac.uk/~yallup/LH2019Correlations.pdf | ||
Stabilisation of SL computation: | Stabilisation of SL computation: |