Promptness
From Particle Wiki
An object is prompt if it originates directly from something, usually a primary vertex of the event, as opposed to some subsequent decay of e.g. a hadron or tau lepton or other particle that is not a heavy resonance of interest. The exact meaning of promptness depends on the context.
Contents
[hide]Definitions in use
Rivet implementation
Rivet link to Rivet source Promptness is undone by being directly or indirectly color-connected to other parts of the event.
ATLAS recommendation
ATLAS http://cdsweb.cern.ch/record/2022743