[Halld-tracking-hw] CDC dE/dx and truncation

[Beni Zihlmann]

wow! that is a 30% improvement!

On 08/15/2017 04:08 PM, Naomi Jarvis wrote:
> The attached files each have a few plots in comparing runs at different rates and changing the dE/dx truncation from 50% to 20% (this is the % of hits which are removed, starting with those with largest dE/dx).
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> My observations:
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> The dE/dx from pulse integral broadens at higher rates, quite a bit more than the dE/dx from amplitude does.
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> Changing the truncation to 20% is very beneficial to the dE/dx from integral, only slightly beneficial to dE/dx from amplitude (the 20% was picked for optimal dE/dx from integral).
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> dE/dx from amplitude gives better separation than integral, even with 20% truncation.  Maybe this would improve further with a different %.
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> Best,
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> Naomi.
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