[Rivet] HepData consistency

[Christian Gutschow]

Hi Holger,

there are cases where the Rivet reference data values and the HEPData reference values will be different because e.g. there’s a note on HEPData saying the central values ought to be shifted by some factor in order to account for the the final luminosity calibration for the respective year (which hadn’t been available when the HEPData entry was made public).

Cheers,
Chris



On 4 Oct 2016, at 11:39, Holger Schulz <holger.schulz at durham.ac.uk<mailto:holger.schulz at durham.ac.uk>> wrote:


Hi,

I wrote a script that does some trivial checks for the reference
data files shipped with rivet and their counterpart obtainable from
HepData.

It generates reports which can be found here:

https://users.hepforge.org/~holsch/HepDataRivetReports/

There is quite a number of inconsistencies.

Quite often in LHC analyses the dxy tags differ, a number of
ref data sets differ in the number of data points between rivet and hepdata
and of course there are several analyses where the data is not in hepdata
at all.

And then there are some "goodness of fit" issues where I compare
two scatters as such (can clearly be improved):


def gof(P1, P2):
    chi=0.0
    for num, p in enumerate(P1):
        chi += (p.y - P2[num].y)
        chi += (p.yErrAvg - P2[num].yErrAvg)
        chi += (p.x - P2[num].x)
        chi += (p.xErrAvg - P2[num].xErrAvg)
    return chi


So yeah I don't really know what course of action to take but it seem quite clear
that HepData and rivet have diverged quite substantially.

Holger



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 —

 Dr. Christian Gütschow

 Department of Physics and Astronomy
 University College London
 Gower Street
 London WC1E 6BT

 > D10 Physics Building
 > +44 (0)20 7679 3775
 > chris.g at cern.ch<mailto:chris.g at cern.ch>




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