ttbb: impact of PS on region with 2 b-jet

Project aim:

• understand to which extent the N_{bjet}=2 region is sensitive to extra b partons generated by the PS (when the simulation starts from a generator which has ttbb in the ME).
• compare also with a LO merging for ttbb+jets where also the ttbbbb region is covered by the exact ME.
• Monday afternoon we'll meet to discuss and define the details of the study we will try.

Disclaimer:

• idea is to perform a self-contained study which can bring some useful information to complement the discussions which is already taking place within the HXSWG. We don't want to do what it's already being studied there.

Interested participants: Davide, Emanuele, Christian, Tomas, Josh McFayden, …