[Rivet] CMS rivet plugin for diffractive dijets (CMS_2012_I1184941)

[Alexander Proskuryakov]

Dear Hendrik,

Sorry for the delay, I had some urgent things to do.

So what we did:

- we selected events with at least two jets with pt>20 GeV
- the two leading jets should be in the pseudorapidity range |eta|<4.4
- for these events we calculated xi+ (xi-) using all final particle in 
eta<4.9
(eta>-4.9) range.

The question about rapidity cut for final state particles used in jets
reconstruction is not very important I think. At some point, I played
with fastjet and compared jets with and without 4.9 cut. The difference
is so small, that I really do not care how it is done. If you like this
cut can be added.

Cheers,  Sasha



On 12/06/2012 09:32 PM, Hendrik Hoeth wrote:
> Hi,
>
> back from dinner now, so I've got a bit more time to answer. I think
> what you want is this:
>
>    const FastJets jets(FinalState(-4.9, 4.9, 0.0*GeV), FastJets::ANTIKT, 0.5);
>
> and
>
>    const Jets jets = applyProjection<FastJets>(event, "AntiKtJets05").jetsByPt(20.*GeV, MAXDOUBLE, -4.4, 4.4);
>    if (jets.size()<  2) vetoEvent;  // require a dijet system with a 20 GeV cut on both jets
>
> Right?
>
> Cheers,
>
>     Hendrik
>