Differences

This shows you the differences between two versions of the page.

--- 2019:groups:tools:likelihoods [2019/06/21 00:01]
deepak.kar
+++ 2019:groups:tools:likelihoods [2019/07/25 12:22]
andy.buckley
@@ Line 1: / Line 1: @@
 ======= Likelihood construction and applications ======
-//Members: Andy B, Ben F, Kar D//
+//Members: Andy B, Ben F, Kar D, **David Y**, Louie C, Sabine//
 Analysis combination:
   * subsets of compatible SRs
   * 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?
+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:

Les Houches