In the "Physics" information box, after "Trigger Selection", a new
facility to enter information about "Final state particles" is wanted.
basically this is a matrix of information looking like:
| particle | number | PT cut | eta cut |
|----------+--------+--------+---------|
| electron | 1 | 20 GeV | 0.4 |
| muon | ... | ... | ... |
| gamma | ... | ... | ... |
| b-jet | ... | ... | ... |
| tau-jet | ... | ... | ... |
| MET | ... | ... | ... |
The UI could work like this:
Final state particles:
----------------------
[--electron--] [number?] [PT cut?] [eta cut?] [+ ADD MORE]
The user could choose particle from the drop-down selection menu
(electron, muon, etc) and enter PT cut and eta cut information
manually in input text areas.
The user could then click on "[+ ADD MORE]" to add more lines to fill
above matrix.
The tasks:
(1) Create "Final state particles" box either as a big static matrix
of the above kind, or better yet as a progressively deploying matrix
lines as people will be clicking on "[+ ADD MORE]".
(2) Interesting things happen if people choose more than one particle
(say 2 electrons) in the above "number?" box. A new selection box
should then pop up below saying something like:
combination? (*) same sign ( ) opposite sign ( ) invariant mass [--free text--]
(3) Similarly to the above selection matrix, one can have have "Vetos"
matrix that will "unselect" events in similar way. (e.g. vetoing this and this
particle with that and that eta cut)