[Rivet] ZFinder problem report

[Andy Buckley]

Thanks for the report, Elena: we'll deal with it as soon as possible. 
Frank, can you take a look or shall I?

Cheers,
Andy


On 30/08/11 11:19, Yatsenko, Elena wrote:
> Hello,
>
> During implementation of the ATLAS ZpT analysis with Rivet v1.6.0 we've found a problem in ZFinder class with clusterPhotons flag.
> If clusterPhotons =«false» dR cut is not effective for the 4 momentum of the Z boson .
> So in our case
>
> ZFinder zfinder_dressed_el(-2.4, 2.4, 20, ELECTRON, 66.0*GeV, 116.0*GeV, 0.1, false, false);
>   and
> ZFinder zfinder_bare_el(-2.4, 2.4, 20, ELECTRON, 66.0*GeV, 116.0*GeV, 0.0, false, false);
>
> will give the same results. While the class documentation suggest that clusterPhotons is meant to only correct the 4 vectors of the decay lepton.
>
> Could you please look at this and find out the source of the problem?
>
> Regards,
> Elena Yatsenko
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-- 
Dr Andy Buckley
SUPA Advanced Research Fellow
Particle Physics Experiment Group, University of Edinburgh

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