diff --git a/Shower/QTilde/Makefile.am b/Shower/QTilde/Makefile.am
--- a/Shower/QTilde/Makefile.am
+++ b/Shower/QTilde/Makefile.am
@@ -1,45 +1,46 @@
 SUBDIRS = Matching
 pkglib_LTLIBRARIES = HwShower.la
 HwShower_la_LDFLAGS = $(AM_LDFLAGS) -module -version-info 27:0:0
 HwShower_la_SOURCES =  \
 Couplings/ShowerAlphaQCD.h Couplings/ShowerAlphaQCD.cc \
 Couplings/ShowerAlphaQED.h Couplings/ShowerAlphaQED.cc\
 QTildeShowerHandler.h QTildeShowerHandler.fh QTildeShowerHandler.cc \
 SplittingFunctions/HalfHalfOneSplitFn.h SplittingFunctions/HalfHalfOneSplitFn.cc\
 SplittingFunctions/OneOneOneSplitFn.h SplittingFunctions/OneOneOneSplitFn.cc\
 SplittingFunctions/OneOneOneMassiveSplitFn.h SplittingFunctions/OneOneOneMassiveSplitFn.cc\
 SplittingFunctions/ZeroZeroOneSplitFn.h SplittingFunctions/ZeroZeroOneSplitFn.cc\
 SplittingFunctions/OneHalfHalfSplitFn.h SplittingFunctions/OneHalfHalfSplitFn.cc\
 SplittingFunctions/HalfOneHalfSplitFn.h SplittingFunctions/HalfOneHalfSplitFn.cc\
 SplittingFunctions/CMWOneOneOneSplitFn.h SplittingFunctions/CMWOneOneOneSplitFn.cc\
 SplittingFunctions/CMWHalfHalfOneSplitFn.h SplittingFunctions/CMWHalfHalfOneSplitFn.cc\
 Kinematics/Decay_QTildeShowerKinematics1to2.cc \
 Kinematics/Decay_QTildeShowerKinematics1to2.h  \
 Kinematics/IS_QTildeShowerKinematics1to2.cc    Kinematics/IS_QTildeShowerKinematics1to2.h  \
 Kinematics/FS_QTildeShowerKinematics1to2.cc    Kinematics/FS_QTildeShowerKinematics1to2.h  \
+Kinematics/KinematicHelpers.h \
 Kinematics/KinematicsReconstructor.cc \
 Kinematics/KinematicsReconstructor.tcc \
 Kinematics/KinematicsReconstructor.h \
 Kinematics/KinematicsReconstructor.fh \
 Base/HardTree.cc Base/HardTree.h Base/HardTree.fh \
 Base/HardBranching.h Base/HardBranching.fh Base/HardBranching.cc\
 Base/PartnerFinder.h Base/PartnerFinder.fh Base/PartnerFinder.cc \
 Base/ShowerVeto.h Base/ShowerVeto.fh Base/ShowerVeto.cc \
 Base/FullShowerVeto.h Base/FullShowerVeto.fh Base/FullShowerVeto.cc \
 SplittingFunctions/SplittingGenerator.cc SplittingFunctions/SplittingGenerator.h\
 SplittingFunctions/SplittingGenerator.fh \
 Base/ShowerTree.h Base/ShowerTree.fh Base/ShowerTree.cc \
 ShowerConfig.h ShowerConfig.cc \
 Base/Branching.h \
 Base/ShowerParticle.cc  Base/ShowerParticle.fh  Base/ShowerParticle.h \
 Kinematics/ShowerKinematics.fh  Kinematics/ShowerKinematics.h Kinematics/ShowerKinematics.cc \
 Kinematics/ShowerBasis.fh  Kinematics/ShowerBasis.h Kinematics/ShowerBasis.cc \
 Base/ShowerProgenitor.fh Base/ShowerProgenitor.h \
 SplittingFunctions/SudakovFormFactor.cc SplittingFunctions/SudakovFormFactor.h SplittingFunctions/SudakovFormFactor.fh \
 SplittingFunctions/SudakovCutOff.cc SplittingFunctions/SudakovCutOff.h SplittingFunctions/SudakovCutOff.fh \
 SplittingFunctions/PTCutOff.cc SplittingFunctions/PTCutOff.h \
 SplittingFunctions/MassCutOff.cc SplittingFunctions/MassCutOff.h \
 SplittingFunctions/VariableMassCutOff.cc SplittingFunctions/VariableMassCutOff.h \
 SplittingFunctions/SplittingFunction.h SplittingFunctions/SplittingFunction.fh \
 SplittingFunctions/SplittingFunction.cc  \
 Base/ShowerVertex.cc Base/ShowerVertex.fh Base/ShowerVertex.h