MaterialEffects/python/RungeKuttaTrackerPropagatorOpposite_cfi.py

0001 import FWCore.ParameterSet.Config as cms
0002
0003 RungeKuttaTrackerPropagatorOpposite = cms.ESProducer("PropagatorWithMaterialESProducer",
0004     SimpleMagneticField = cms.string(""),
0005     MaxDPhi = cms.double(1.6),
0006     ComponentName = cms.string('RungeKuttaTrackerPropagatorOpposite'),
0007     Mass = cms.double(0.105),
0008     PropagationDirection = cms.string('oppositeToMomentum'),
0009     useRungeKutta = cms.bool(True),
0010 # If ptMin > 0, uncertainty in reconstructed momentum will be taken into account when estimating rms scattering angle.
0011 # (By default, it is neglected). However, it will also be assumed that the track pt can't be below specified value,
0012 # to prevent this scattering angle becoming too big.
0013     ptMin = cms.double(-1.)
0014 )
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