[AGENE-2233] Introduction of bblvlv_modified
requested to merge atlas-physics/pmg/mcexperts/powheg-experts/athena:bblvlv_modified_mainDev into main
Dear all,
this is the PowhegControl implementation of the bblvlv_modified process which contains all decay channels of bb4l.
As requested in https://its.cern.ch/jira/browse/AGENE-2233
Tested with /afs/cern.ch/atlas/offline/external/powhegbox/ATLASOTF-06-00/POWHEG-BOX-RES/b_bbar_4l_modified
Kind regards,
Andrej