def __CreateSelectionRho__(self, lName, RhoCombCut, RhoCut, PionCut):
'''
rho(770)0 -> pi+ pi- selection (from StdAllLoosePions)
'''
from StandardParticles import StdAllLoosePions
from GaudiConfUtils.ConfigurableGenerators import CombineParticles
CombineRho = CombineParticles()
CombineRho.InputPrimaryVertices = self.__PVOutputLocation__
CombineRho.DecayDescriptor = "rho(770)0 -> pi+ pi-"
if (len(RhoCombCut) > 0):
CombineRho.CombinationCut = RhoCombCut
CombineRho.MotherCut = RhoCut
CombineRho.DaughtersCuts = {"pi+": PionCut}
from PhysSelPython.Wrappers import Selection
SelRho = Selection("SelBuild_" + lName + "_Rho",
Algorithm=CombineRho,
RequiredSelections=[StdAllLoosePions])
return SelRho
def __CreateSelectionX3872__(self, lName, CombCut, MotherCut,
InputSelections):
'''
X3872 -> J/psi(1S) rho(770)0: note this can be used for the psi(2S) as well - just use different cuts!
'''
from GaudiConfUtils.ConfigurableGenerators import CombineParticles
CombineX3872 = CombineParticles()
CombineX3872.InputPrimaryVertices = self.__PVOutputLocation__
CombineX3872.DecayDescriptor = "X_1(3872) -> J/psi(1S) rho(770)0"
CombineX3872.CombinationCut = CombCut
CombineX3872.MotherCut = MotherCut
from PhysSelPython.Wrappers import Selection
SelX3872 = Selection("Sel_" + lName + "_X3872",
Algorithm=CombineX3872,
RequiredSelections=InputSelections)
return SelX3872
def __CreateSelectionBu__(self, lName, CombCut, MotherCut,
InputSelections):
'''
B+ -> K+ X3872 Selection
'''
from GaudiConfUtils.ConfigurableGenerators import CombineParticles
CombineBu = CombineParticles()
CombineBu.InputPrimaryVertices = self.__PVOutputLocation__
CombineBu.DecayDescriptors = [
"B+ -> X_1(3872) K+", "B- -> X_1(3872) K-"
]
CombineBu.CombinationCut = CombCut
CombineBu.MotherCut = MotherCut
from PhysSelPython.Wrappers import Selection
SelBu = Selection("Sel_" + lName + "_Bu",
Algorithm=CombineBu,
RequiredSelections=InputSelections)
return SelBu
