21 def testFit(self):
22 """Run the test fit"""
23
24 testFile = tempfile.NamedTemporaryFile()
25
26 main = basf2.create_path()
27
29 'analysis/1000_B_DstD0Kpipi0_skimmed.root', 'validation', py_case=self)
30 ma.inputMdst(inputfile, path=main)
31
32 ma.fillParticleList('pi+:a', 'pionID > 0.5', path=main)
33 ma.fillParticleList('K+:a', 'kaonID > 0.5', path=main)
34
35 ma.fillParticleList('gamma:a', 'E > 0.08', path=main)
36 ma.reconstructDecay('pi0:a -> gamma:a gamma:a', '0.125 < InvM < 0.145', 0, path=main)
37
38 ma.reconstructDecay('D0:rec -> K-:a pi+:a pi0:a', '', 0, path=main)
39 ma.reconstructDecay('D*+:rec -> D0:rec pi+:a', '', 0, path=main)
40 ma.reconstructDecay('B0:rec -> D*+:rec pi-:a', ' InvM > 5', 0, path=main)
41 ma.matchMCTruth('B0:rec', path=main)
42
43 conf = 0
44 main.add_module('TreeFitter',
45 particleList='B0:rec',
46 confidenceLevel=conf,
47 massConstraintList=[111],
48 massConstraintListParticlename=[],
49 expertUseReferencing=True,
50 ipConstraint=False,
51 updateAllDaughters=False)
52
53 ntupler = basf2.register_module('VariablesToNtuple')
54 ntupler.param('fileName', testFile.name)
55 ntupler.param('variables', ['chiProb', 'M', 'isSignal'])
56 ntupler.param('particleList', 'B0:rec')
57 main.add_module(ntupler)
58
59 basf2.process(main)
60
61 ntuplefile = TFile(testFile.name)
62 ntuple = ntuplefile.Get('ntuple')
63
64 self.assertFalse(ntuple.GetEntries() == 0, "Ntuple is empty.")
65
66 allBkg = ntuple.GetEntries("isSignal == 0")
67 allSig = ntuple.GetEntries("isSignal > 0")
68
69 truePositives = ntuple.GetEntries("(chiProb > 0) && (isSignal > 0)")
70 falsePositives = ntuple.GetEntries("(chiProb > 0) && (isSignal == 0)")
71
72 mustBeZero = ntuple.GetEntries(f"(chiProb < {conf})")
73
74 print(f"True fit survivors: {truePositives} out of {allSig} true candidates")
75 print(f"False fit survivors: {falsePositives} out of {allBkg} false candidates")
76
77 self.assertFalse(truePositives == 0, "No signal survived the fit.")
78
79 self.assertTrue(falsePositives < 3038, f"Too many false positives: {falsePositives} out of {allBkg} total bkg events.")
80
81 self.assertTrue(truePositives > 63, "Signal rejection too high")
82 self.assertFalse(mustBeZero, f"We should have dropped all candidates with confidence level less than {conf}.")
83
84 print("Test passed, cleaning up.")
85
86
def require_file(filename, data_type="", py_case=None)
1.9.6