October/November Updates

New features

• Large amount of work in developing various legacy analyses within the CH framework and building workspaces with RooMorphingPdfs.
• To go along with this, MSSM physics models can now be built using the combine PhysicsModel infrastructure at the text2workspace step. This will scale process rates and masses according to mA and tanb using the cross sections and BRs that will be loaded from the LHCXSWG model files
• Development of combineTool.py script for calculating Impacts, calculating Asymptotic and toy-based limits on a grid
• These areas are still under heavy development and will be documented for more general use in a subsequent update
• No longer required that signal processes have a numeric mass() value when writing a datacard. When the value in non-numeric, the datacard will use the same shape directive as for the backgrounds, i.e. without the $MASS pattern (4dd1c8b).

Bug fixes

• It was previously possible to cause a segfault when CH tried to evaluate the effect of a systematic uncertainty that did not have a corresponding parameter value. This is now fixed, and an exception will be thrown instead (a68fe6e).
• BuildRooMorphing now checks if the full set of shape systematics is present for each mass points, and throws an exception if not - otherwise would lead to a segfault when trying to access the missing Systematic objects (99bc6ca)