Other branch from cond in argus_pdf_phalf_WN slow
Other branch from cond in argus_pdf_phalf_WN slow

Loop takes 15.942969s instead of 6-7s with the precomputed factor. This
is approximately the same runtime as just with the cond, so the cond
itself is not the problem, but the argus_integral_phalf function is.

roofit-dev/parallel-roofit-scripts,roofit-dev/parallel-roofit-scripts,roofit-dev/parallel-roofit-scripts,roofit-dev/parallel-roofit-scripts,roofit-dev/parallel-roofit-scripts