make clean
make
./0vbb_phasespace.exe
./0vbb_phasespace.exe
(run twice)

//  Compile:  g++ -g -O2 -o 0vbb_phasespace.exe 0vbb_phasespace.C `root-config --cflags --libs` -I$RATROOT/include/libpq -I$RATROOT/include -L$RATROOT/lib -lRATEvent_Linux -lGeom
//  Run:      ./0vbb_phasespace.exe
//  Info:     Will take 2-3 min to generate distributions. Run a second time to plot.
//  Author:   Martti Nirkko, April 2019 (based on work done at INSS 2015)
// ---------------------------------------------------
// Include helper functions / plotting style```