Rare event definition in DAFNE
The rare event definition in DAFNE determines which event will be stored in the RARE EVENT STREAM. Of course this definition might evolute with time, according to the interest/need to scan a certain type of events and to the tagging rates of the various routines. At Present, an event is classified as RARE if fulfills one of the following conditions:
(for a list of the tagging routines and a description of their purpose and tagging codes click here)

• was tagged by the topological routine and not by the veto neither by tbad
• It was tagged by the Thadr routine (except codes 4 and 5) and not by the veto neither by tbad
• It was tagged by any of the following routines and not by tbad (tbad codes 4 to 8)
• tww, t4l
• t4jet, tha, thll, thnn
• t3jet
• It was tagged by one of the following routines and not by the tbad code 4 (tight veto and/or other tbad codes used in specific cases)
• tsusy
• tstau with itag>1
• tnng, t2g (tphot)
• tmjet,tgstar
• tdisp
• tdege with itag>1
• It was not tagged by Dafne and it was tagged by Delana (except as cosmic or beam gas)