PID TrkEff Corr                                                                        Kenji Hamano

Last modified : Mar 21, 2007                                              Back to Home Back to privious page

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R16b skims Run2 was used.
On Peak data luminosity: 59.4 fb-1

Tihghter Kaon Selection is applied.
D prob > 0.001 and B prob > 0.01 applied
|cosTheta_{Dl-nonDl}| < 0.92 applied

PID systematicsBAD1465

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Correction factor

PID and Tracking correction factor distribution plots

Kaon PID	Electron PID	Muon PID	Tracking
efficiency	efficiency	efficiency	efficiency
fake rate (0 - 2)	fake rate (0 - 2)	fake rate (0 - 2)	n/a
fake rate (0 - 4)	fake rate (0 - 4)	fake rate (0 - 4)	n/a
fake rate (0 - 10)	fake rate (0 - 10)	fake rate (0 - 10)	n/a

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Effect of corrections on D mass, lepton and D momentum, and cosBY

Befoer correction	K PID	L PID	K + L PID	PID + Tracking
D mass	D mass	D mass	D mass	D mass
D mass (difference)	D mass (difference)	D mass (difference)	D mass (difference)	D mass (difference)
D mass (electron)	D mass (electron)	D mass (electron)	D mass (electron)	D mass (electron)
D mass (muon)	D mass (muon)	D mass (muon)	D mass (muon)	D mass (muon)
L momentum	L momentum	L momentum	L momentum	L momentum
L momentum, bin by bin (D0)	L momentum, bin by bin (D0)	L momentum, bin by bin (D0)	L momentum, bin by bin (D0)	L momentum, bin by bin (D0)
L momentum, bin by bin (D+)	L momentum, bin by bin (D+)	L momentum, bin by bin (D+)	L momentum, bin by bin (D+)	L momentum, bin by bin (D+)
D momentum	D momentum	D momentum	D momentum	D momentum
D momentum, bin by bin (D0)	D momentum, bin by bin (D0)	D momentum, bin by bin (D0)	D momentum, bin by bin (D0)	D momentum, bin by bin (D0)
D momentum, bin by bin (D+)	D momentum, bin by bin (D+)	D momentum, bin by bin (D+)	D momentum, bin by bin (D+)	D momentum, bin by bin (D+)
cosBY	cosBY	cosBY	cosBY	cosBY
cosBY, bin by bin (D0)	cosBY, bin by bin (D0)	cosBY, bin by bin (D0)	cosBY, bin by bin (D0)	cosBY, bin by bin (D0)
cosBY, bin by bin (D+)	cosBY, bin by bin (D+)	cosBY, bin by bin (D+)	cosBY, bin by bin (D+)	cosBY, bin by bin (D+)

New Plots :
After TrkEff PID correction

Lepton momentum with OffPeak
D momentum with OffPeak
cosBY with OffPeak
D momentum : Bin by bin D0
D momentum : Bin by bin D+

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