add displaced dimuon produced in smog2 collisions
Adding a line called "Hlt1SMOG2DisplacedDimuon" to trigger on dark matter candidate produced in a SMOG2 with a dimuon decay within the VELO.
The line should start at dimuon threshold mass, with the candidate decaying in the VELO but with its momentum direction compatible with a primary vertex in the SMOG2 cell. This should be be a free line in term of rate, as we see in the test with pAr+pp simulation (see attached the full output file)
|*"Selected by Hlt1SMOG2D2KpiDecision" | 29807 | 33 |(0.1107122 +- 0.01926186)% |
|*"Selected by Hlt1SMOG2DiMuonHighMassDecision" | 29807 | 1 |(0.003354917 +- 0.003354860)% |
|*"Selected by Hlt1SMOG2DisplacedDiMuonDecision" | 29807 | 5 |(0.01677458 +- 0.007501192)% |
|*"Selected by Hlt1SMOG2KsTopipiDecision" | 29807 | 21 |(0.07045325 +- 0.01536874)% |
The conditions:
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A candidate with a PV in the smog region [-541mm,-341mm]
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The decay vertex of the dimuon pair located outside the cell [-341mm;inf]
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At least one of the muon track with pt > 300MeV
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FDCHI2 > 15
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Max vertex chi2 of 30
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Mom IP < 1 mm
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Invariant mass starting at dimuon threshold
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chi2Corr < 2
Goes with Moore!3299