Constituent Collection

[dabercro]

It looks like the b-Jet regression and NANOAOD in general is using daughterPtrVector (example) instead of jetConstituents for getting members. I still have to spend a little time seeing what changes, but is there a reason we chose jetConstituents @yiiyama ? Should I save another vector of references or should I change the way panda::Jet::constituents is filled for the next run?

[yiiyama]

OK I see, so daughterPtrVector is a new (>=9_4) function that returns a flattened list of constituents including the constituents of the subjets. When the JetFiller was written (for 8_0) the method did not exist, and one would have had to loop over the constituents under the convention that the first couple were actually not candidates but subjets.
I think we should take advantage of daughterPtrVector + subjets instead of looping over constituents by hand.