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

-- UrsLangenegger - 2010-05-06