[Rivet] HepData consistency

[Andy Buckley]

Eek, ATLAS isn't propagating errata to HepData?!

Hope I misunderstood...

Andy


On 04/10/16 13:39, Chris G wrote:
> Hi both,
>
> actually it’s the other way around — the HEPData tables weren't changed and just a note has been added to the entry. The modification would then have to be applied manually.
>
> Now, there were a couple of cases where I wrote a routine for an old analysis where I noticed this and put that manual change in, such that the Rivet reference data is fully up to date.
>
> Cheers,
> Chris
>
>> On 4 Oct 2016, at 13:31, Andy Buckley <andy.buckley at cern.ch> wrote:
>>
>> Absolutely. I'm not sure how good the groups are at propagating errata to us. There's maybe been an assumption that we'll pick up the updates from HepData -- which was our intention all along -- but the divergence of HD from what we're given has broken that. It's a big problem... and not one we can ignore. We need to involve the HepData people.
>>
>> Andy
>>
>>
>>
>> On 04/10/16 13:07, David Grellscheid wrote:
>>> Hi Chris,
>>>
>>> In that case, shouldn't the change propagate to Rivet, too?
>>>
>>> See you,
>>>
>>>  David
>>>
>>>
>>> On 04/10/16 12:46, Christian Gutschow wrote:
>>>> 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
>>>>>
>>>>>
>>>>>
>>>>> _______________________________________________
>>>>> Rivet mailing list
>>>>> Rivet at projects.hepforge.org <mailto:Rivet at projects.hepforge.org>
>>>>> https://www.hepforge.org/lists/listinfo/rivet
>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>> —
>>>>
>>>> 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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>>>>
>>> _______________________________________________
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>>>
>>
>>
>> --
>> Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
>> Particle Physics Expt Group, University of Glasgow
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>


-- 
Dr Andy Buckley, Lecturer / Royal Society University Research Fellow
Particle Physics Expt Group, University of Glasgow