dE/dx
Currently only the average of dE/dx per track is saved in the Event TTree. A good idea would be to plot also the dE/dx distribution of all individual hits as well which are produced by the chargino MC particle.
To be checked:
-
is the LCRelation
ofrecHit
andsimHit
the digitizer make a relation always 1 to 1? -
run on all MCPart and take the simHit
or run on all Tracks look perrecHit
and get the associatedsimHit
? -
distribution of dE/dx within one track (for each hit) -
studying the kinematics on truth level as an indication for the dE/dx behavior -
plot p/m for the 600mm and the 6.9mm sample before reweighting -
understand why the detector acceptance selects particles with larger momentum (=boost) and therefore smaller dE/dx (as beta*gamma~=1) -
(plot weight vs. momentum) -
plot dE/dx vs truth beta*gamma -
check dE/dx for background particles, e.g. pions from overlay: is it reasonable? -
to see if there is any way to get a separation based on a dEdx criterion, compare dE/dx of charginos to dE/dx of overlay particles without preselection and with several types of preselections -
related: is the pT ordering introducing a bias in the dE/dx for the background?
Edited by Ulrike Schnoor