Same sign dimuon trigger performance plots ( CMS DP-2020/029)

The same-sign di-muon HLT was developed for the search of H(125)→aa in 2HD+1S models at low ma (ma ≤ 15 GeV) with signatures of non-isolated leptons (decay products of light a boson overlap).

This HLT path was deployed during 2016 era of data taking. Using the data collected during this period, the analysis H(125)→2a→(τμτ)(τμτ) search in 13 TeV pp collisions with the CMS detector was published (PLB 800 (2020) 135087).

The same-sign requirement on the di-muon trigger significantly reduces the contribution coming from QCD multijet processes and nearly eliminates all of electroweak and top pair backgrounds.

The triggering strategy for the 13 TeV collision data analysis was to keep the non-isolated di-muon path with low thresholds and implement the same-sign requirement online in order to keep an unprescaled trigger for the analysis.

More details can be found in the CMS-DP-2020-029 note.


pg7_ZMassSameSignFilterPass.png   pg7_ZMassSameSignFilterFail.png Charge misidentification rate with Z events
The passing (left) and the failing (right) probes of the reconstructed Z → μμ events to the same-sign filter.
[Get pdf version left] [Get pdf version right]
Contacts: Somnath Choudhury, Alexei Raspereza


pg8_JPsiMassSameSignFilterPass.png   pg8_JPsiMassSameSignFilterFail.png Charge misidentification rate with J/Psi events
The passing (left) and the failing (right) probes of the reconstructed J/Psi → μμ events to the DZ filter.
[Get pdf version left] [Get pdf version right]
Contacts: Somnath Choudhury, Alexei Raspereza


pg10_ZMassDZFilterPass.png   pg10_ZMassDZFilterFail.png DZ filter efficiency with Z events
The passing (left) and the failing (right) probes of the reconstructed Z → μμ events to the same-sign filter.
[Get pdf version left] [Get pdf version right]
Contacts: Somnath Choudhury, Alexei Raspereza


pg11_JPsiMassDZFilterPass.png   pg11_JPsiMassDZFilterFail.png DZ filter efficiency with J/Psi events
The passing (left) and the failing (right) probes of the reconstructed J/Psi → μμ events to the same-sign filter.
[Get pdf version left] [Get pdf version right]
Contacts: Somnath Choudhury, Alexei Raspereza


pg14_HLT_Mu17Mu8_Muon17_eff.png pg14_HLT_Mu17Mu8_Muon8_eff.png Mu17/Mu8 Leg Efficiencies
The efficiencies measured in data and simulation for the Mu17 and Mu8 muon legs in reconstructed Z → μμ events with the tag muon being fired by the HLT_IsoMu24 trigger and the probe muon being one of the Mu17 or Mu8 filters.
[Get pdf version left] [Get pdf version right]
Contacts: Somnath Choudhury, Alexei Raspereza

-- ElisabettaGallo - 2020-06-23

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PDFpdf pg10_ZMassDZFilterFail.pdf r1 manage 17.5 K 2020-07-30 - 13:23 ElisabettaGallo  
PNGpng pg10_ZMassDZFilterFail.png r1 manage 18.3 K 2020-07-30 - 13:23 ElisabettaGallo  
PDFpdf pg10_ZMassDZFilterPass.pdf r1 manage 17.2 K 2020-07-30 - 13:24 ElisabettaGallo  
PNGpng pg10_ZMassDZFilterPass.png r1 manage 18.4 K 2020-07-30 - 13:24 ElisabettaGallo  
PNGpng pg11_JPsiMassDZFilterFail.png r1 manage 19.2 K 2020-07-30 - 13:24 ElisabettaGallo  
PDFpdf pg11_JPsiMassDZFilterPass.pdf r1 manage 21.6 K 2020-07-30 - 13:24 ElisabettaGallo  
PNGpng pg11_JPsiMassDZFilterPass.png r1 manage 18.4 K 2020-07-30 - 13:24 ElisabettaGallo  
PDFpdf pg11__JPsiMassDZFilterFail.pdf r1 manage 25.8 K 2020-07-30 - 13:24 ElisabettaGallo  
PDFpdf pg14_HLT_Mu17Mu8_Muon17_eff.pdf r1 manage 16.2 K 2020-07-30 - 13:24 ElisabettaGallo  
PNGpng pg14_HLT_Mu17Mu8_Muon17_eff.png r1 manage 16.5 K 2020-07-30 - 13:24 ElisabettaGallo  
PDFpdf pg14_HLT_Mu17Mu8_Muon8_eff.pdf r1 manage 16.2 K 2020-07-30 - 13:24 ElisabettaGallo  
PNGpng pg14_HLT_Mu17Mu8_Muon8_eff.png r1 manage 16.4 K 2020-07-30 - 13:24 ElisabettaGallo  
PDFpdf pg7_ZMassSameSignFilterFail.pdf r1 manage 17.5 K 2020-07-30 - 13:23 ElisabettaGallo  
PNGpng pg7_ZMassSameSignFilterFail.png r1 manage 20.0 K 2020-07-30 - 13:23 ElisabettaGallo  
PDFpdf pg7_ZMassSameSignFilterPass.pdf r1 manage 18.9 K 2020-07-30 - 13:23 ElisabettaGallo  
PNGpng pg7_ZMassSameSignFilterPass.png r1 manage 20.0 K 2020-07-30 - 13:23 ElisabettaGallo  
PDFpdf pg8_JPsiMassSameSignFilterFail.pdf r1 manage 21.9 K 2020-07-30 - 13:23 ElisabettaGallo  
PNGpng pg8_JPsiMassSameSignFilterFail.png r1 manage 18.6 K 2020-07-30 - 13:23 ElisabettaGallo  
PDFpdf pg8_JPsiMassSameSignFilterPass.pdf r1 manage 26.5 K 2020-07-30 - 13:23 ElisabettaGallo  
PNGpng pg8_JPsiMassSameSignFilterPass.png r1 manage 20.2 K 2020-07-30 - 13:23 ElisabettaGallo  
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