dataset = RooDataSet('dataset', 'Combined dataset (DsK + DsPi)',
RooArgSet(time, decaycat),
RooFit.Import(dsetlist[0]))
dataset.append(dsetlist[1])
for dset in dsetlist:
dset.Print()
dataset.Print()
## Basic B decay pdf with time resolution
# Resolution model
mean = RooRealVar('mean', 'Mean', 0.)
# scale = RooRealVar('scale', 'Per-event time error scale factor', 1.19)
resmodel = RooGaussModel('resmodel', 'Time resolution model', time,
mean, RooRealConstant.value(0.044),
RooRealConstant.value(1.0),
RooRealConstant.value(1.0))
# RooRealConstant::value(0), scale, dt)
# RooRealConstant::value(0), scale,
# RooRealConstant::value(0.00004))
# Decay model
Bdecay = RooBDecay('Bdecay', 'Decay function for the B_{s} (heavy + light)',
time, RooRealConstant.value(tau), # t, τ
RooRealConstant.value(dgamma), # ΔΓ
RooRealConstant.value(1.0), # f0 - cosh
RooRealConstant.value(0.0), # f1 - sinh
RooRealConstant.value(0.0), # f2 - cos
RooRealConstant.value(0.0), # f3 - sin
RooRealConstant.value(0.0), # Δm
resmodel, RooBDecay.SingleSided)
dsetlist[idx].addColumn(decaycat)
dataset = RooDataSet('dataset', 'Combined dataset (DsK + DsPi)',
RooArgSet(time, decaycat), RooFit.Import(dsetlist[0]))
dataset.append(dsetlist[1])
for dset in dsetlist:
dset.Print()
dataset.Print()
## Basic B decay pdf with time resolution
# Resolution model
mean = RooRealVar('mean', 'Mean', 0.)
# scale = RooRealVar('scale', 'Per-event time error scale factor', 1.19)
resmodel = RooGaussModel('resmodel', 'Time resolution model', time, mean,
RooRealConstant.value(0.044),
RooRealConstant.value(1.0),
RooRealConstant.value(1.0))
# RooRealConstant::value(0), scale, dt)
# RooRealConstant::value(0), scale,
# RooRealConstant::value(0.00004))
# Decay model
Bdecay = RooBDecay(
'Bdecay',
'Decay function for the B_{s} (heavy + light)',
time,
RooRealConstant.value(tau), # t, τ
RooRealConstant.value(dgamma), # ΔΓ
RooRealConstant.value(1.0), # f0 - cosh
RooRealConstant.value(0.0), # f1 - sinh
RooRealConstant.value(0.0), # f2 - cos
# Pull distributions
dspi_pullhist = tfr_fitres.pullHist('hdspi_dataset', 'hdspi_model')
dsk_pullhist = tfr_fitres.pullHist('hdsk_dataset', 'hdsk_model')
# fit pulls
tblhdr = '| {0:^{width}} | {1:^{width}} |'
tblrow = '| {0:>{sign}{width}e} | {1:>{sign}{width}e} |'
print 'Power law acceptance with %s ratio:' % ratiofn
print tblhdr.format('Mean', 'RMS', width=13)
print tblrow.format(dspi_pullhist.GetMean(2), dspi_pullhist.GetRMS(2),
sign=' ', width=10)
print tblrow.format(dsk_pullhist.GetMean(2), dsk_pullhist.GetRMS(2),
sign=' ', width=10)
# Dsπ
xaxisvar = RooRealConstant.value(0.0)
tfr_pull1 = time.frame(RooFit.Range('full'), RooFit.Name('dspi_pull'))
xaxisvar.plotOn(tfr_pull1, RooFit.LineColor(ROOT.kRed), RooFit.LineWidth(2))
tfr_pull1.addPlotable(dspi_pullhist, 'P')
tfr_pull1.SetTitle(';;')
tfr_pull1.SetAxisRange(-5, 5, 'Y')
# DsK
tfr_pull2 = time.frame(RooFit.Range('full'), RooFit.Name('dsk_pull'))
xaxisvar.plotOn(tfr_pull2, RooFit.LineColor(ROOT.kRed), RooFit.LineWidth(2))
tfr_pull2.addPlotable(dsk_pullhist, 'P')
tfr_pull2.SetTitle('')
tfr_pull2.SetYTitle('')
tfr_pull2.SetAxisRange(-5, 5, 'Y')
tfr_pull2.GetXaxis().SetTitleSize(0.07)
tfr_pull2.GetXaxis().SetLabelSize(0.07)
# turnon has a different range as it is in the denominator
turnon = RooRealVar('turnon', 'turnon', 1., 1E-4, 10.)
offset = RooRealVar('offset', 'offset', 0., -1E-3, 1E-3)
else:
print 'Unknown acceptance type. Aborting'
assert(False)
# Resolution model
mean = RooRealVar('mean', 'Mean', 0.)
scale = RooRealVar('scale', 'Per-event time error scale factor', 1.)
resmodel = RooGaussModel('resmodel', 'Time resolution model', time,
mean, scale, dt)
# Decay model
decayH = RooDecay('decayH', 'Decay function for the B_{s,H}',
time, RooRealConstant.value(1.536875/1E3),
resmodel, RooDecay.SingleSided)
decayL = RooDecay('decayL', 'Decay function for the B_{s,L}',
time, RooRealConstant.value(1.407125/1E3),
resmodel, RooDecay.SingleSided)
decay = RooAddPdf('decay', 'Decay function for the B_{s}',
decayH, decayL, RooRealConstant.value(0.5))
decayargset = RooArgSet(decay)
# Get tree
rfile = get_file('data/smalltree-new-MC.root', 'read')
ftree = get_object('ftree', rfile)
# dt dataset for denom
trigger = 'HLT2Topo3BodyTOS'
triggerVar = RooRealVar(trigger, trigger, 0, 2)
