[Rivet] Rivet and covariance matrices etc

[Hannes Jung]

Dear Rivet developers, Andy et al

in the LHC EW working group on jets and vector-bosons we are starting
to compare measurements from the different LHC experiments to see,
whether the measurements are consistent. 
We start just doing a comparison using the Rivet plugins with one or two
well defined theory calculation.

At the moment, the experimental uncertainties (stat and syst) in Rivet are 
treated as uncorrelated uncertainties, while for a detailed comparison with theory 
also the correlations and the different correlated systematic uncertainties
should be treated.

Is there already some discussion under the Rivet developers, to include those
uncertainties, or if not, would you be interested to join the discussion in our
working group on how to consistently define the correlation matrices between the
experiments, such that they can be used also within Rivet ?

We will have a first meeting of the Jets + Bosons WG on Friday, tomorrow:

https://indico.cern.ch/event/721044/

Your participation would be very welcome 


Best

Hannes

***********************************************************************
Hannes Jung 
Email: Hannes.Jung at desy.de 
mobile :+49 40 8998 93741
http://www.desy.de/~jung                                        
Tel: +49 (0) 40 8998 3741         
Fax: +49 (0) 40 8994 3741
DESY, CMS 01B/02.213
Notkestr.85, 22603 Hamburg, FRG   
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