[Rivet] VetoedFinalStates on jets

[kristin Lohwasser]

Hi Frank,

ups, yes, thanks. I did by accident swap the setting for muon/electron W 
finder, but removed the muon finder. I did not notice it, cause it 
already brought me close enough to our born level electron selection....

Thanks for spotting this -- and for the note about the photons (I had 
been wondering about this parameter...)

Cheers
Kristin


On 06/02/2014 05:08 PM, Frank Siegert wrote:
> Hi Kristin,
>
> The WFinder projection has an argument 'trackPhotons' which configures
> exactly the behaviour you are looking for. By default
> trackPhotons=NOTRACK and as such the clustered photons will not be
> included in the WFinder::FinalState particles, i.e. they would not be
> vetoed in your code snippet. If you want to veto them, you would add
> TRACK as last argument in your WFinder constructor.
> Furthermore, in your code you have set dR=0 in the WFinder arguments,
> so there will never be any clustered photons. Is that on purpose?
>
> Note, that the exact form of the WFinder arguments has evolved with
> Rivet versions, so my answer above applies to the most recent version
> of the constructor, as documented here:
> https://rivet.hepforge.org/code/dev/a00367.html#a80792f53b82536aca74bb8dd19908379
>
> Cheers,
> Frank
>
>
> On 2 June 2014 16:46, kristin Lohwasser <kristin.lohwasser at cern.ch> wrote:
>> Dear all,
>>
>> I would like to check something on the Jets coming with a Vetoed final state
>> applied,
>>
>> essentially I require a WFinder and exclude its decay products from the
>> jets.
>> --> Question: Does this contain the bremsstrahlungs photons coming from the
>> electrons?
>> --> Is there any (elegant) way to exclude them as well?
>>
>> Code is below the signature.
>>
>> Thanks for any hints & Best
>> Kristin
>>
>>        WFinder wfinder_born_el(fs, -2.5, 2.5, 20*GeV, PID::ELECTRON, 0*GeV,
>> 8000*GeV, 15*GeV, 0., WFinder::CLUSTERNODECAY     );
>>        addProjection(wfinder_born_el, "WFinder_born_el");
>>
>>        // Input for the jets: no neutrinos, no muons, and no electron which
>> passed the electron cuts
>>        VetoedFinalState veto;
>>        veto.addVetoOnThisFinalState(wfinder_born_el);
>>        veto.addVetoPairId(PID::MUON);
>>        veto.addVetoPairId(PID::ANTIMUON);
>>        veto.vetoNeutrinos();
>>        FastJets jets(veto, FastJets::ANTIKT, 0.4);
>>        addProjection(jets, "jets");
>>
>> --
>> ****************************************************
>> Dr. Kristin Lohwasser
>>
>> DESY
>> Zeuthen
>> Raum: 3L-022
>> Telefon +49 33762 7-7647
>> Platanenallee 6
>> D-15738 Zeuthen
>> Deutschland
>>
>> Kristin.Lohwasser at cern.ch
>> ****************************************************
>>
>> _______________________________________________
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>> Rivet at projects.hepforge.org
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-- 
****************************************************
Dr. Kristin Lohwasser

DESY
Zeuthen
Raum: 3L-022
Telefon +49 33762 7-7647
Platanenallee 6
D-15738 Zeuthen
Deutschland

Kristin.Lohwasser at cern.ch
****************************************************