Last Update - August 16, 1995
The exact number of padrows is currently being defined. The ADC values may also be available. This will make dE/dx information available. The hit-finding algorithm has been implemented in TAS in the TDH module.
All these tracks must have left enough hits in the outer padrows passed to L3 to be found. The limited number of padrows imposes a pt and rapidity cut-off. When only the 16 outer padrows are considered these cut-offs are 0.3 GeV/c for pt and |eta|<1.1.
Again, these tracks have the same pt and eta cuts as before. Pions and kaons can be identified for pt <= 0.5-0.6 GeV/c. Protons can be identified for pt <= 0.9-1.2 GeV/c. These are the original numbers from the original TID package, ie it is what Jeff Mitchell showed at the 3rd level trigger workshop in May 94. That package is currently being improved, but the analysis now takes much longer, so probably cannot be used in the trigger. The original numbers are probably about what can be expected for the trigger.
All the same features as at Levels 1 and 2, ie looking for abnormal eta and/or phi distributions, just with more detail. This could include jets, local fluctuations in the pt and/or eta distributions, bumps and assymetries etc... We could also look at the mean pt for positive and negativley charged particles separately, and combined.
We can look for abnormalities in the yields, and in the pt and rapidity distributions, of each particle type separately.