[Halld-tracking-hw] CDC dE/dx

[Naomi Jarvis]

Good morning!


Are we placing any analysis cuts on the minimum number of CDC hits used for
dE/dx?    If not, I think we should be.

Below I have included plots from run 40701.  The first shows dE/dx vs p
(including q+ and q-) for the tracks where only one CDC hit was used for
dE/dx.  I thought these would all be at forward angles, this is not the
case.  Next there are a few plots requiring different minimum n hits,
starting with minimum=1 hit.

I have also attached a handy root file containing these and more
histograms, so that those who feel so inclined can look into this further.


Best,

Naomi.
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