merge with -00-01-32-branch (ISF_FatrasServices-00-02-03)

Simulation/ISF/ISF_Fatras/ISF_FatrasServices/ISF_FatrasServices/FatrasSimSvc.h

+/*
+  Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+*/
+
+///////////////////////////////////////////////////////////////////
+// FatrasSimSvc.h, (c) ATLAS Detector software
+///////////////////////////////////////////////////////////////////
+
+#ifndef ISF_FATRASSIMSVC_H
+#define ISF_FATRASSIMSVC_H 1
+
+// STL includes
+#include <string>
+
+// FrameWork includes
+#include "GaudiKernel/ServiceHandle.h"
+#include "GaudiKernel/ToolHandle.h"
+#include "AthenaBaseComps/AthService.h"
+
+// ISF includes
+#include "ISF_Interfaces/BaseSimulationSvc.h"
+
+// DetectorDescription
+#include "AtlasDetDescr/AtlasRegion.h"
+
+// Tracking includes
+#include "TrkTrack/TrackCollection.h"
+
+namespace ISF {
+    class IParticleFilter;
+    class ISFParticle;
+    class ITruthSvc;
+}
+
+namespace iFatras {
+
+  class ITransportTool;
+
+  /** @class FatrasSimSvc
+  
+      @author Andreas.Salzburger -at- cern.ch
+     */
+  class FatrasSimSvc : public ISF::BaseSimulationSvc { 
+
+    public: 
+      //** Constructor with parameters */
+      FatrasSimSvc( const std::string& name, ISvcLocator* pSvcLocator );
+      
+      /** Destructor */
+      virtual ~FatrasSimSvc(); 
+      
+      /** Athena algorithm's interface methods */
+      StatusCode  initialize();
+      StatusCode  finalize();
+
+      /** Simulation Call  */
+      StatusCode simulate(const ISF::ISFParticle& isp);
+                                                                 
+      /** Setup Event chain - in case of a begin-of event action is needed */
+      StatusCode setupEvent();
+
+      /** Release Event chain - in case of an end-of event action is needed */
+      StatusCode releaseEvent();
+
+    private:     
+      /** Default constructor */
+      FatrasSimSvc();
+
+      /** Track Creation & transport */
+      ToolHandle<iFatras::ITransportTool>  m_simulationTool;   //!< Pointer to the transport AlgTool
+      ToolHandle<ISF::IParticleFilter>     m_particleFilter;   //!< the particle filter concerning kinematic cuts, etc.
+
+  }; 
+}
+
+
+#endif //> !ISF_FatrasSimSvc_H

Simulation/ISF/ISF_Fatras/ISF_FatrasServices/cmt/requirements

+package ISF_FatrasServices
+
+manager Andreas Salzburger <Andreas.Salzburger@cern.ch>
+manager Elmar Ritsch <Elmar.Ritsch@cern.ch>
+manager Wolfgang Lukas <Wolfgang.Lukas@cern.ch>
+
+#################################################################
+# public use statements
+use AtlasPolicy               AtlasPolicy-*
+use GaudiInterface            GaudiInterface-*             External
+use AthenaBaseComps           AthenaBaseComps-*            Control
+
+use ISF_Interfaces            ISF_Interfaces-*             Simulation/ISF/ISF_Core
+
+use TrkTrack                  TrkTrack-*                   Tracking/TrkEvent
+
+use AtlasDetDescr             AtlasDetDescr-*              DetectorDescription
+
+#################################################################
+# private use statements
+private
+use StoreGate                 StoreGate-*                  Control
+use ISF_FatrasInterfaces      ISF_FatrasInterfaces-*       Simulation/ISF/ISF_Fatras
+use ISF_Event                 ISF_Event-*                  Simulation/ISF/ISF_Core
+
+public
+library ISF_FatrasServices *.cxx components/*.cxx
+apply_pattern component_library
+apply_pattern declare_python_modules files="*.py"
+
+# use the following to compile with debug information
+#private
+#macro cppdebugflags '$(cppdebugflags_s)'
+#macro_remove componentshr_linkopts "-Wl,-s"

Simulation/ISF/ISF_Fatras/ISF_FatrasServices/python/FatrasPhysicsList.py

+# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+
+#
+## @file FatrasExample/python/FatrasPhysicsList.py
+## @purpose Python module to hold common flags to configure JobOptions
+##
+
+""" FatrasPhysicsList
+    Python module to hold storegate keys of InDet objects.
+
+"""
+
+__author__ = "A. Salzburger"
+__version__= "$Revision: 476468 $"
+__doc__    = "FatrasPhysicsList"
+
+__all__    = [ "FatrasPhysicsList" ]
+
+# kindly stolen from AthenaCommonFlags from S. Binet and M. Gallas
+
+##-----------------------------------------------------------------------------
+## Import
+
+from AthenaCommon.JobProperties import JobProperty, JobPropertyContainer
+from AthenaCommon.JobProperties import jobproperties
+
+##-----------------------------------------------------------------------------
+## 1st step: define JobProperty classes
+class MultipleScattering(JobProperty):
+    """Steering of multiple scattering in simulation/reconstruction"""
+    statusOn     = True
+    allowedTypes = ['bool']
+    StoredValue  = True
+
+class EnergyLoss(JobProperty):
+    """Steering of energy loss (ionisation) in simulation/reconstruction"""
+    statusOn     = True
+    allowedTypes = ['bool']
+    StoredValue  = True
+
+class Bremsstrahlung(JobProperty):
+    """Steering of energy loss (radiative) in simulation"""
+    statusOn     = True
+    allowedTypes = ['bool']
+    StoredValue  = True
+
+class PairProduction(JobProperty):
+    """Steering of pair production in simulation"""
+    statusOn     = True
+    allowedTypes = ['bool']
+    StoredValue  = True
+
+class HadronicInteraction(JobProperty):
+    """Steering of nuclear (hadronic) interactions in simulation"""
+    statusOn     = True
+    allowedTypes = ['bool']
+    StoredValue  = True
+    
+class ParticleDecay(JobProperty):
+    """Steering of particle decay in simulation"""
+    statusOn     = True
+    allowedTypes = ['bool']
+    StoredValue  = True
+
+##-----------------------------------------------------------------------------
+## 2nd step
+## Definition of the InDet flag container
+class FatrasPhysicsList(JobPropertyContainer):
+    """Container for the Fatras physics list flags
+    """
+    pass
+
+
+##-----------------------------------------------------------------------------
+## 3rd step
+## adding the container to the general top-level container
+jobproperties.add_Container(FatrasPhysicsList)
+
+##-----------------------------------------------------------------------------
+## 4th step
+## adding ID flags to the InDetKeys container
+jobproperties.FatrasPhysicsList.add_JobProperty(MultipleScattering)
+jobproperties.FatrasPhysicsList.add_JobProperty(EnergyLoss)
+jobproperties.FatrasPhysicsList.add_JobProperty(Bremsstrahlung)
+jobproperties.FatrasPhysicsList.add_JobProperty(PairProduction)
+jobproperties.FatrasPhysicsList.add_JobProperty(HadronicInteraction)
+jobproperties.FatrasPhysicsList.add_JobProperty(ParticleDecay)
+
+##-----------------------------------------------------------------------------
+## 5th step
+## short-cut for lazy people
+## carefull: do not select FatrasPhysicsList as a short name as well. 
+## otherwise problems with pickle
+## Note: you still have to import it:
+## >>> from FatrasExample.FatrasPhysicsList import FatrasPhysicsListFlags
+FatrasPhysicsListFlags = jobproperties.FatrasPhysicsList

Simulation/ISF/ISF_Fatras/ISF_FatrasServices/python/FatrasTrackingGeometrySvc.py

+# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+
+class FatrasTrackingGeometrySvc:
+  def __init__(self):
+    from AthenaCommon.Include import include
+    from AthenaCommon.AppMgr import ToolSvc
+
+    ##################################################################################
+    # The FatrasTrackingGeometry Svc fragment
+    #
+    # usage: 
+    #   include('TrkDetDescrSvc/FatrasTrackingGeometrySvc.py')
+    #
+    #    + for the navigator, set the TrackingGeometryName to:
+    #      FatrasTrackingGeometrySvc.trackingGeometryName()
+    #
+    ##################################################################################
+    # import the DetFlags for the setting
+    from AthenaCommon.DetFlags import DetFlags
+
+    #################################################################################
+    # Material for the Geometry
+    #
+    # if only ID is switched on different COOLDB Folders
+    #    and different Tag is used
+    # 
+    #################################################################################
+
+    from TrkDetDescrSvc.TrkDetDescrJobProperties import TrkDetFlags
+    
+    if TrkDetFlags.ConfigurationOutputLevel() < 3 :
+      print '[ Configuration : start ] *** FatrasTrackingGeometry ********************************'
+      print '[ TrackingGeometrySvc ]'
+
+    # check whether the material retrieval is ment to be from COOL
+    if TrkDetFlags.MaterialFromCool() :
+        # the tag names
+        CoolDataBaseFolder = TrkDetFlags.MaterialStoreGateKey()
+        AtlasMaterialTag = TrkDetFlags.MaterialTagBase()+str(TrkDetFlags.MaterialVersion())+'_'
+
+        if TrkDetFlags.ConfigurationOutputLevel() < 3 :
+           print '[ TrackingGeometrySvc ] Associating DB folder : ',CoolDataBaseFolder
+           print '[ TrackingGeometrySvc ]     base material tag : ',AtlasMaterialTag
+
+        # we need the conditions interface
+        from IOVDbSvc.CondDB import conddb
+        # use a local database
+        if TrkDetFlags.MaterialDatabaseLocal():
+            # specify the local database
+            DataBasePath  = TrkDetFlags.MaterialDatabaseLocalPath() 
+            DataBaseName  = TrkDetFlags.MaterialDatabaseLocalName()
+            MagicTag      = TrkDetFlags.MaterialMagicTag()
+            DataBaseConnection = '<dbConnection>sqlite://X;schema='+DataBasePath+DataBaseName+';dbname=OFLP200</dbConnection>'
+            conddb.blockFolder('/GLOBAL/TrackingGeo/LayerMaterial')
+            conddb.addFolderWithTag('',DataBaseConnection+CoolDataBaseFolder,AtlasMaterialTag+MagicTag,force=True)
+            if TrkDetFlags.ConfigurationOutputLevel() < 3 :
+                print '[ TrackingGeometrySvc ] Using Local Database: '+DataBaseConnection        
+            # make sure that the pool files are in the catalog
+            #from PoolSvc.PoolSvcConf import PoolSvc
+            #PoolSvc.ReadCatalog += [ DataBasePath+'PoolFileCatalog.xml' ]                
+        elif TrkDetFlags.SLHC_Geometry() :
+            # set the folder to the SLHC location
+            CoolDataBaseFolder = '/GLOBAL/TrackingGeo/SLHC_LayerMaterial'
+            ctag = AtlasMaterialTag+TrkDetFlags.MaterialMagicTag()
+            cfoldertag = CoolDataBaseFolder+' <tag>'+ctag+'</tag>'
+            conddb.addFolderSplitMC('GLOBAL',cfoldertag,cfoldertag)
+        else :
+            # load the right folders (preparation for calo inclusion)
+            cfolder = CoolDataBaseFolder +'<tag>TagInfoMajor/'+AtlasMaterialTag+'/GeoAtlas</tag>'
+            conddb.addFolderSplitMC('GLOBAL',cfolder,cfolder)
+
+    #################################################################################
+    # The Geometry Builder
+    #################################################################################
+
+    # the name to register the Geometry
+    FatrasTrackingGeometryName = 'FatrasTrackingGeometry'
+
+    # the geometry builder alg tool
+    from TrkDetDescrTools.TrkDetDescrToolsConf import Trk__GeometryBuilder
+    FatrasGeometryBuilder = Trk__GeometryBuilder(name = 'FatrasGeometryBuilder')
+    # switch on the Detectors
+    FatrasGeometryBuilder.InDetTrackingGeometry  = DetFlags.ID_on()
+    FatrasGeometryBuilder.CaloTrackingGeometry   = DetFlags.Calo_on()
+    FatrasGeometryBuilder.MuonTrackingGeometry   = DetFlags.Muon_on() # avoid double building of MTG
+    # register it to tool svc
+    ToolSvc += FatrasGeometryBuilder
+
+    # (ID) 
+    if DetFlags.ID_on() :
+      # get hand on the ID Tracking Geometry Builder
+      if not TrkDetFlags.SLHC_Geometry() :
+        from InDetTrackingGeometry.ConfiguredInDetTrackingGeometryBuilder import ConfiguredInDetTrackingGeometryBuilder as IDGeometryBuilder
+      else :
+        from InDetTrackingGeometry.ConfiguredSLHC_InDetTrackingGeometryBuilder import ConfiguredSLHC_InDetTrackingGeometryBuilder as IDGeometryBuilder
+      if not TrkDetFlags.SLHC_Geometry() :   
+        self.__InDetTrackingGeometryBuilder__ = IDGeometryBuilder(name ='InDetTrackingGeometryBuilder',
+                                                         namePrefix = 'Fatras',
+                                                         setLayerAssociation = False,
+                                                         buildTrtStrawLayers = True)
+        self.__InDetTrackingGeometryBuilder__.VolumeEnclosureOuterR = 1148.
+      else :   
+        self.__InDetTrackingGeometryBuilder__ = IDGeometryBuilder(name ='InDetTrackingGeometryBuilder',
+                                                         namePrefix = 'Fatras',
+                                                         setLayerAssociation = False)
+        self.__InDetTrackingGeometryBuilder__.VolumeEnclosureOuterR = 1148.
+
+      # make a public tool out of it
+      ToolSvc += self.__InDetTrackingGeometryBuilder__
+      # and give it to the Geometry Builder
+      FatrasGeometryBuilder.InDetTrackingGeometryBuilder = self.__InDetTrackingGeometryBuilder__
+      # 
+    # (Calo)
+    if DetFlags.Calo_on():
+       from CaloTrackingGeometry.ConfiguredCaloTrackingGeometryBuilder import ConfiguredCaloTrackingGeometryBuilder as ConfiguredCaloGeo
+       CaloTrackingGeometryBuilder = ConfiguredCaloGeo(name = 'FatrasCaloTrackingGeometryBuilder')
+       CaloTrackingGeometryBuilder.RecordLayerIndexCaloSampleMap = True
+       # make a publid tool
+       ToolSvc += CaloTrackingGeometryBuilder
+       # and give it to the Geometry Builder
+       FatrasGeometryBuilder.CaloTrackingGeometryBuilder = CaloTrackingGeometryBuilder
+
+    # (Muon)  
+    if DetFlags.Muon_on():
+       from MuonTrackingGeometry.ConfiguredMuonTrackingGeometry import MuonTrackingGeometryBuilder
+       FatrasMuonTrackingGeometryBuilder = MuonTrackingGeometryBuilder(name = 'FatrasMuonTrackingGeometryBuilder')
+       FatrasMuonTrackingGeometryBuilder.BarrelZ = 6783.  
+       FatrasMuonTrackingGeometryBuilder.InnerBarrelRadius = 4255.  
+       ToolSvc += FatrasMuonTrackingGeometryBuilder
+       # and give it to the Geometry Builder
+       FatrasGeometryBuilder.MuonTrackingGeometryBuilder = FatrasMuonTrackingGeometryBuilder      
+  
+
+    # then get the tuning parameters
+    from FatrasExample.FatrasTuning import FatrasTuningFlags
+    if FatrasTuningFlags.MaterialDistortionsX0.statusOn and \
+       FatrasTuningFlags.MaterialDistortionsRho.statusOn :
+      from TrkDetDescrSvc.TrkDetDescrSvcConf import CalibrationTrackingGeometrySvc as GeometrySvc
+    else :  
+      from TrkDetDescrSvc.TrkDetDescrSvcConf import TrackingGeometrySvc as GeometrySvc
+    FatrasTrackingGeometrySvc = GeometrySvc(name = 'FatrasTrackingGeometrySvc')
+
+    # register the Builder 
+    FatrasTrackingGeometrySvc.GeometryBuilder = FatrasGeometryBuilder
+    # and register the name under which the geometry is registered
+    FatrasTrackingGeometrySvc.TrackingGeometryName = FatrasTrackingGeometryName
+    # global scaling of the material if necessary
+    FatrasTrackingGeometrySvc.GlobalScaleFactor = FatrasTuningFlags.MaterialScalor()
+    # some flags - only works when ID is on
+    FatrasTrackingGeometrySvc.AssignMaterialFromCOOL   = True
+    FatrasTrackingGeometrySvc.BuildGeometryFromTagInfo = True
+    # Material scaling & distortion
+    if FatrasTuningFlags.MaterialDistortionsX0.statusOn and \
+       FatrasTuningFlags.MaterialDistortionsRho.statusOn :
+       FatrasTrackingGeometrySvc.RandomDistortions          = True
+       FatrasTrackingGeometrySvc.DistortionsRadiationLength = FatrasTuningFlags.MaterialDistortionsX0() 
+       FatrasTrackingGeometrySvc.DistortionsDensity         = FatrasTuningFlags.MaterialDistortionsRho()
+       from FatrasExample.FatrasValidation import FatrasValidationFlags
+       FatrasTrackingGeometrySvc.RecordDistortions          = FatrasValidationFlags.MaterialDistortions()
+       FatrasTrackingGeometrySvc.DistortionOutputFolder     = '/'+FatrasValidationFlags.ValidationStream()+'/MaterialDistortions'
+    # switch to the rigth CoolDB folder 
+    FatrasTrackingGeometrySvc.InputLayerMaterialSetName = CoolDataBaseFolder
+
+    from AthenaCommon.AppMgr import ServiceMgr as svcMgr
+    svcMgr += FatrasTrackingGeometrySvc
+
+    print '* [ Configuration : start ] *** FatrasTrackingGeometry ********************************'
+    print '* [ FatrasTrackingGeometrySvc   ]'
+    print FatrasTrackingGeometrySvc
+    print '* [ GeometryBuilder       ]'
+    print FatrasGeometryBuilder
+    print '* [ Configuration : end   ] *** FatrasTrackingGeometry ********************************'
+
+    ##################################################################################    
+
+    self.__geoSvc__ = FatrasTrackingGeometrySvc
+
+  def getGeoSvc(self):
+    return self.__geoSvc__

Simulation/ISF/ISF_Fatras/ISF_FatrasServices/python/FatrasTuning.py

+# Copyright (C) 2002-2017 CERN for the benefit of the ATLAS collaboration
+
+#
+## @file FatrasExample/python/FatrasTuning.py
+## @purpose Python module to hold common flags to configure JobOptions
+##
+
+""" FatrasKeys
+    Python module to hold storegate keys of InDet objects.
+
+"""
+
+__author__ = "A. Salzburger"
+__version__= "$Revision: 578960 $"
+__doc__    = "FatrasTuning"
+
+__all__    = [ "FatrasTuning" ]
+
+# kindly stolen from AthenaCommonFlags from S. Binet and M. Gallas
+
+##-----------------------------------------------------------------------------
+## Import
+
+from AthenaCommon.JobProperties import JobProperty, JobPropertyContainer
+from AthenaCommon.JobProperties import jobproperties
+
+##-----------------------------------------------------------------------------
+## 1st step: define JobProperty classes
+
+class MinimumParticlePtPrimaryTrackCreation(JobProperty):
+    """do not simulate primary tracks below this momentum"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 250.
+
+class MinimumMuonPtTrackCreation(JobProperty):
+    """Kill the particle when it falls underneath this threshold"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 1000.        
+    
+class MinimumParticleMomentum(JobProperty):
+    """Kill the particle when it falls underneath this threshold"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 50.
+
+
+class MinimumBremPhotonMomentum(JobProperty):
+    """Follow the photon if it is over threshold"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 150.
+
+# Conversion Creation: 
+class InteractionVolumeRadius(JobProperty):
+    """Volume (r) in which brem photons / had int are processed"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 1200.
+      
+class InteractionVolumeHalfZ(JobProperty):
+    """Volume (z) in which brem photons / had int are processed"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 4000.    
+      
+## ============================================================================
+## Energy Loss through: Bethe-Heitler distribution 
+class BetheHeitlerScalor(JobProperty):
+    """Scalor to adapt Bethe-Heitler contribution"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 1.
+    
+## ============================================================================
+## Multiple Scattering: Gaussian mixture model 
+class GaussianMixtureModel(JobProperty):
+    """Gaussian mixture model on/off for Multiple Scattering"""
+    statusOn     = True
+    allowedTypes = ['bool']
+    StoredValue  = True
+
+## ============================================================================
+## Conversion Creation: 
+class ParticleDecayMinChildEnergy(JobProperty):
+    """minimum child energy from a conversion"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 250.
+        
+## ============================================================================
+## Conversion Creation: 
+class ConversionMinChildEnergy(JobProperty):
+    """minimum child energy from a conversion"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 100.
+    
+class ConversionChildEnergyScalor(JobProperty):
+    """minimum child energy from a conversion"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 2.
+ 
+# Conversion Creation: 
+class ConversionProbabilityScalor(JobProperty):
+    """Scalor to adapt the conversion probability"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 0.98
+    
+# Conversion Creation: 
+class ConversionVolumeRadius(JobProperty):
+    """Volume (r) in which conversions are created"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 1200.
+      
+class ConversionVolumeHalfZ(JobProperty):
+    """Volume (z) in which conversions are created"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 4000.
+
+    
+## ============================================================================
+## Hadronic interactions:     
+class HadronicInteractionProbabilityScalor(JobProperty):
+    """ """
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 1.
+
+## Hadronic interactions:     
+class HadronicInteractionMinMomentumIn(JobProperty):
+    """ """
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 1000.
+    
+## Hadronic interactions:     
+class HadronicInteractionMinMomentumOut(JobProperty):
+    """Volume (z) in which conversions are created"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 200.    
+           
+
+## ============================================================================
+## Noise Levels
+class PixNoiseLevel(JobProperty):
+    """Pixel overall noise level (fraction of noisy pixels)"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 1e-5
+
+class SctNoiseLevel(JobProperty):
+    """SCT overall noise level (fraction of noisy strips)"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 1e-5
+
+class TrtNoiseLevel(JobProperty):
+    """TRT overall noise level (fraction of noisy straws)"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 0.02
+
+class TrtMultiHitFlag(JobProperty):
+    """Flag how to deal with TRT multiple hits on straw"""
+    statusOn     = True
+    allowedTypes = ['int']
+    StoredValue  = 1
+
+# Material distortions
+class MaterialScalor(JobProperty):    
+    """efficiencies (vs. eta) for the TRT"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 1.00
+
+class MaterialDistortionsX0(JobProperty):    
+    """efficiencies (vs. eta) for the TRT"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 0.02
+    
+# Material distortions
+class MaterialDistortionsRho(JobProperty):    
+    """efficiencies (vs. eta) for the TRT"""
+    statusOn     = True
+    allowedTypes = ['float']
+    StoredValue  = 0.02
+
+class MomCutOffSec(JobProperty):
+    """Steering of ISF: common momentum cut-off for secondaries"""