Add function in RD isolation for vertex isolation online selection of 2-body and 3-body combinations
Add a simple function in rd_isolation to save as extra_outputs two-body and three-body combinations under specific conditions.
- Two-body combinations are persisted if the absolute value of the DELTACHI2 between the combination and the reference particle is smaller than
max_two_body_vtx_cut(default: 9); - Three-body combinations are persisted if the absolute value of the DELTACHI2 between the combination and the reference particle is smaller than
make_three_body_combination(default: 15);
Application example in some LFV lines B->K*taul.
Primarily inspired by the work done by @amathad in DaVinci!955
A small modification on the isolation method affects charm implementation (cc: @smaccoli). Trivial modifications are applied.