[Rivet] CMS_2011_S9120041, jet reconstruction

[Mohammed Zakaria]

Greetings,

Yes. I think this makes sense. I would like to make a test run to make
sure. I will send a second confirmation when it's done.

Best,

Mohammed Zakaria



On Wed, Dec 12, 2012 at 11:34 AM, Sercan Sen <Sercan.Sen at cern.ch> wrote:

>
>  Hello Andy,
>
>  Now it looks consistent what is written in the paper.
>
>  However, I add Mohammed in cc who is the author of the routine. So, he
> can let us know if this is exactly the same with what was done in the
> experiment.
>
>  Cheers,
> Sercan
>
>
>
>
>
>  On Dec 12, 2012, at 4:11 PM, Andy Buckley wrote:
>
>  Hi Sercan,
>
> Thanks for that. I've applied what I hope is a reasonable correction here:
>
>
> https://rivet.hepforge.org/trac/changeset?reponame=&new=4079%40branches%2F2012-06-aidarivet%2Fsrc%2FAnalyses%2FCMS_2011_S9120041.cc&old=3921%40branches%2F2012-06-aidarivet%2Fsrc%2FAnalyses%2FCMS_2011_S9120041.cc
>
> Can you check that this does what it should? I checked that it compiles,
> and FourMomentum::isZero() should be safe.
>
> Cheers :)
> Andy
>
>
> On 12/12/12 15:53, Sercan Sen wrote:
>
>
>  Hello Andy,
>
>
>  Today in the meeting I forgot to mention you that we may a little bug
>
> in CMS_2011_S9120041 Rivet routine (http://arxiv.org/pdf/1107.0330v1.pdf).
>
>
>  I think in this paper jets are reconstructed in |\eta| < 2 from the
>
> charged final state in |\eta| < 2.5 .
>
>
>  page 3:
>
> "Selected events are also required to contain a track-jet with pT > 1
>
> GeV/c, reconstructed with pseudorapidity |η| < 2. Track-jets are defined
>
> using the SISCone algorithm [22] as implemented in the FastJet
>
> package.... Charged particles reconstructed in the tracker with pT > 0.5
>
> GeV/c and |η| < 2.5 are used to define the track-jet; this η range is
>
> wider than that used for the UE analysis (|η| < 2) in order to avoid a
>
> kinematic bias."
>
>
>  However, in the Rivet routine all jets are reconstructed in |\eta| < 2.5
>
> and there is no cut on the eta of the jets (or on the eta of the leading
>
> jet).
>
>
>  Thanks,
>
> Sercan
>
>
>  --
>
> Sercan Sen http://cern.ch/ssen
>
> ----------------------------------------------
>
>
>
>
> --
> Dr Andy Buckley, SUPA Advanced Research Fellow
> Particle Physics Expt Group, University of Edinburgh
>
> The University of Edinburgh is a charitable body, registered in
> Scotland, with registration number SC005336.
>
>
>           --
>              Sercan Sen http://cern.ch/ssen
>     ----------------------------------------------
>
>
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