Lock a track ``family''

ITK

ALPHA ``track'' number

The family of track ITK consists of:

• The track ITK itself.
• All copies of track ITK which have been made or will be made, including Lorentz boosts of ITK.
• For charged tracks, all associated cal. objects; for cal. objects, all associated charged tracks.
• For reconstructed tracks, all tracks based on the same reconstructed object but assigned to different vertices, used with different mass hypotheses, etc..
• Daughters, granddaughters, great-granddaughters, ... ; i.e., all kinship in descending line.
• Mothers, grandmothers, great-grandmothers, ... ; i.e., all kinship in directly (!) ascending line. If you use QLOCK for declaring a reconstructed particle to be background, all its ancestors (composite particles based on it) are implicitly declared to be background.
• Jets and other ``pseudo particles'' described in 10.3. If you lock a jet, you lock all contributing particles. If you lock a particle, you lock all jet vectors to which the particle belongs. To lock all particles not belonging to a jet, user QLREV described below.

Reconstructed tracks and MC truth are treated separately; locking a reconstructed track has no effect on any MC track and vice versa. Lock does not work if you mix up reconstructed tracks and MC.