B_s → μ⁺ μ^- Analysis

Links

• CVS: HeavyFlavorAnalysis/Bs2MuMu
• CVS: AnalysisDataFormats/HeavyFlavorObjects

Recipes

• How to work with the CMSSW packages: Bs2MuMuCMSSW
• How to analyse the 'ntuples': Bs2MuMuAnalysis
• How to produce the ntuples on a large dataset: Bs2MuMuNtupleProduction
• How to run a MC production: Bs2MuMuMCProduction
• How to run on data with crab: Bs2MuMuAnalysisWithCrab

Tables

• Table with candidates in the NTuple: Bs2MuMuCandidateTable
• Table with chain files: Bs2MuMuChainTable

Task List 2010

Topic	Name	Links	Estimated time
Bs2MuMu production for pileup study			DO IT
+ L1TT 40 and 41 mirrored in L1? in HLT?			DO IT
+ Alternatives?! ?
+ Bs -> mu mu (14 evts)		on starodumov@t3ui02 in ~/CMSSW_3_5_0 ...Bs2MuMu/test/test-local/ - *.py files and in .../test-local/mc and .../test-local/rec *.root files	done
+ Bs-> mu mu CMSSW_3_8_4 private	Andrey	on SE: starodumov/bsmm/fall10/tree/	done
+ Change trigger readout to AFTER masking	Urs		done
+ Cls implementation and validation			5
+ Combination of subanalyses (endcaps, barrel)			2
+ comparison of trigger summary report with own trigger results (L1 and HLT)			done
+ double muon trigger efficiency			DO IT 5
+ Matching muon trigger objects to reconstructed muons			DO IT
+ Modify PythiaDauFilter: minptcut and maxetacut per daughter			done
+ Muon triggers present when muons reconstructed			DO IT
+ optimization of definition (with Bs -> J/psi phi)
+ ratios of trigger efficiencies			2
+ run validation jobs for py template files (gen and reco)	Andrey		done
+ script to check all production logfiles	Urs	monGrid	done
+ single muon trigger efficiency			DO IT 5
+ validation (data/MC) for Bs -> J/psi phi
add dE/dx from track	Urs		done
add track quality word	Urs		done
Analysis tasks
Background study in rare MC samples			5
BF(Bs -> J/psi phi) normalized to Bd -> J/psi K*, Bu -> J/psi K+			5
BF(Bu -> J/psi K+) normalized to Bd -> J/psi K*			5
blinding strategy			1
Bs -> mu+ mu- fitting systematics: exponential vs pol1, ...			2
Bu -> J/psi K+ fitting systematics: reflections, bumps, ...			3
CMSSW EDAnalyzers
Code for expected upper limit			2
Code for expected upper limit vs integrated luminosity			2
Continuous ntuple production on data and (min bias) MC			ongoing
Cross section measurements for Bu, Bd, Bs			15
Data quality
Data/MC comparison code with sideband subtraction (Bu, Bd, Bs)			DO IT (5)
Generate py files for samples	Andrey		done
Isolation
J/psi reconstruction with muon+track	Urs	done	done
Kaon tracking efficiency			10
Luminosity (per run, validated)			3
Mass resolution (vs pT, phi, eta, cuts, comparison several samples, data/MC)	Christoph		ongoing (3)
MC samples Production
Measurement of fu/fd/fs			15
migrate analysis from HeavyFlavorAnalysis/Examples into Bs2MuMu	Urs	Bs2MuMuCMSSW	done
migration of anaTNP and readerTNP	Bora/Urs		done
migration of signal part (signal MC)			DO IT 3
modular vertex fitting: kinFit (mu+ mu- + n tracks)	Urs		need validation
modular vertex fitting: KVF (mu+ mu-)	Urs		need validation
Multivariate analysis			10
muon ID efficiency from J/psi, psi(2S), OneS	Bora/Urs		DO IT (10)
Normalization analyses
Optimization of cuts			5
pi/K misid rates from b -> mu D0,D+	Lukas/Danek		DO IT (10)
preparation of different ana for signal, normalization, ...			2
prescale factors
PV validation	Danek		3
rare decay truth selector	Urs	HFTruthSelector	done
replication to T2_CH_CSCS or T3_CH_PSI	Urs		done
reweighting of events (pT, I, ...)			2
Run production	Urs	Bs2MuMuMCProduction	ongoing
Script for T2-production:	Urs	runGrid	done
Script to check all analysis logfiles	Urs		1
separation of control/normalization channels into other derived classes			5
sqrt(s)			1
Systematic errors
treeBmm and anaBmm code
Trigger efficiency			5
Trigger efficiency:
Trigger validation	Urs		DO IT 5
Upper limit calculation (in RooStatsCMS?!)
Validate pixel/tracker/muon system status			5
Validated list of runs			3
Validation and Backup	Jose	Bs2MuMuWinter10Production	ongoing
Validation of vertexing in data and MC	Danek		ongoing
Vertexing study (resolution, efficiency; data/MC, pT, phi, eta)	Danek		5
Yield vs. integrated luminosity

-- UrsLangenegger - 2010-05-06