• Selection of muons (used for almost all filters below) : selectMuo = true 
  
• certified muons with nseg > 0
• pt > 1.5 GeV/c
• Chi2 of local fit of muon >= 0
• N(SMT) hits > 1
• N(CFT) hits > 1

• B => muon + loose D*,  D*->D0pi, D0->Kpi : selectBDstarMuFlag = true
  
• CS filter "SKIM_AA_B_DSTMU_LOOSE"
  
• muon
• as above and pt>2.5 GeV
• no other muons in the same jet
• muon is not from J/psi candidate
  
• D0
• pt(K)>0.7, pt(pi)>0.7
• K & pi : # SMT hits >1
  
• K & pi from the same Durham jet as muon and from the same PV
• K has the same charge as muon, K & pi have opposite charges
  
• m(K,pi) mass window [1.3-2.2 GeV]
• cos (angle between track and D0) > 0.8
• D*
• slow pion : # SMT hits > 1, same PV and nothing else
  
• Delta m < 0.2 GeV
• 2.2 < m B < 5.5 GeV
• no lifetime cuts
  
• piece of code that does it all

• B => muon + Ds, Ds -> phi pi : selectBDsMuFlag = true
  

• CS filter "SKIM_AA_B_DSMU"

• muon as above + nseg > 1 + ptot(mu) > 3 GeV
• 3 tracks with pt > 0.7 GeV and in the same jet as muon
• N(SMT) > 1 for each track
• N(CFT) > 1 for each track
• M(KKpi) < 2.3 GeV
• M(KK) < 1.07 GeV
• cosine of angle between Ds direction and Ds momentum in axial plane > 0.85
• distance/error in axial plane for Ds > 3
• 1.5 < Mass(mu Ds) < 5.5
• chi2 of (mu Ds) vertex < 16
• if B-vertex is after Ds-vertex, distance/error between B and Ds < 3
• if distance/error for B-vertex > 4, cosine of angle between B direction and momentum > 0.95
• piece of code that does it

• J/psi & dimuon mass continuum : selectJPsiFlag = true
  

• CS filter "SKIM_AA_JPSI"
• two certified muons of opposite change
• pt > 1.0 GeV for each particle
• N(CFT) > 1 for each particle
• at least 1 muon with nseg == 3
• if nseg > 0, then pt > 1.5 GeV (i.e. allow pt < 1.5 GeV only for nseg = 0 muons)
• for muon with nseg = 0
• Pt(mu mu) > 4.0 GeV
• nmtc() >= 0,  see MuonParticle class
• CalEsig() > 0.015*CalNLayer(), see MuonParticle class
• Ptot < 7
  
• Pt of second muon > 2.5
• chi2 of global muon fit < 25 for both particles
• M(mu mu) > 2.5 GeV
• if M(mu mu) > 3.6 GeV: (High di-muon mass selection)
• nseg > 1 for both muons
• pt > 2.5 GeV for both muons
• piece of code that does it

• B => D*pi, D*->D0pi, D0->Kpi : selectBDstarHFlag = true 

• CS filter "SKIM_AA_B_DSTH"

• muons as above and pt>2.5 GeV
• D0
• pt(K)>0.7, pt(pi)>0.7
• K & pi : # SMT hits >1
  
• K & pi from the same Durham jet and from the same PV
• K & pi have opposite charges
  
• m(K,pi) mass window [1.75-1.95 GeV]
• cos (angle between D0 direction and D0 momentum) > 0.9
• D*
• slow pion : # SMT hits > 1, same PV and nothing else
  
• Delta m < 0.2 GeV
• B
• pion : pt>0.7, # SMT hits > 1, same PV
  
• 4.5 < m B < 7 GeV
• B vertex chi^2 < 36
  
• no lifetime cuts
  
• piece of code that does it

• B => muon + tight D0, D*->D0pi, D0->Kpi : selectBD0MuFlag = true
  

• CS filter "SKIM_AA_B_D0MU"

• muon as above + nseg > 1 + ptot(mu) > 3 GeV
• 2 tracks of opposite charge with pt > 0.7 GeV and in the same jet as muon
• N(SMT) > 1 for each track
• N(CFT) > 1 for each track
• K is selected according to the charge of muon
• 1.4 < Mass(Kpi) < 2.2
• IP significance > 2 for each track
• Chi2 of (Kpi) vertex < 9
• distance/error in axial plane > 3
• cosine of angle between direction of track and momentum of D0 > 0.8
• 2.0 < Mass(mu D0) < 5.2
• chi2 of (mu D0) vertex < 9
• if B-vertex is after D-vertex, distance/error between B and D < 3
• see D0 note 4280, section 4 for details
  
• piece of code that does it

note that each filter has a flag so selections in your code will be most CPU time effective if you use this flag