Bhabha veto                                                                        Kenji Hamano

Last modified : Aug 10, 2005                                              Back to Home Back to privious page

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Radiative Bhabha veto

1. Define the following variables
      nTrk = number of charged tracks from GTL (GoodTrackLoose) list
      nGam = number of gammas from CalorNeutral list with E_gamma > 80 MeV
      multi = nTrk + nGam/2
2. The Radiative Bhabha veto then requires
      multiplicity >= 5 and nTrk >= 4
reference

Run4 was used. Luminosities are

	# files	# events	calculation	luminosity
OnPeak	100	4,350,000	5000000*99.763/15478292	32.227 fb-1
OffPeak	14	677,780	1*9.937	9.937
BpBm	50	2,500,000	2500000*614.7/26581032	57.81
B0B0bar	50	2,500,000	2500000*620.0/28032699	55.29
ccbar	50	2,500,000	2500000*145.2/4621167	78.55
uds	50	2,500,000	2500000*186.0/4270887	108.88
tautau	8	374,945	1*225.0	225.0

D mass plots from AddLepton subskims:
D0 mass (D0->Kpi) : Plep cut dependence
Dch mass (Dch->Kpipi) : Plep cut dependence

D mass plots with radiative Bhabha veto:
D0 mass (D0->Kpi)
Dch mass (Dch->Kpipi)

D mass plots with Plep<2.7GeV:
D0 mass (D0->Kpi)
Dch mass (Dch->Kpipi)

D mass plots with radiative Bhabha veto and Plep<2.7GeV:
D0 mass (D0->Kpi)
Dch mass (Dch->Kpipi)

D + D from Dstar mass plots with radiative Bhabha veto and Plep<2.7GeV:
D0 mass (D0->Kpi)
Dch mass (Dch->Kpipi)

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