[Hps-analysis] followup on track pulls

Graham, Mathew Thomas mgraham at slac.stanford.edu
Wed Sep 27 12:25:30 EDT 2017


Here’s the second plot (which is z0 by the way) expanded to +/-10…here it’s easier to see that the red (p>0.55GeV) is marginally narrower than the mid (blue) and p<0.4GeV (black), but there’s no smoking gun here.

[cid:969D1684-7C6E-460C-92D8-9335E6B49063 at lan]

On Sep 27, 2017, at 9:43 AM, Graham, Mathew Thomas <mgraham at slac.stanford.edu<mailto:mgraham at slac.stanford.edu>> wrote:

Here are the projections in low, mid, high bins of momentum (normalized to integral=1) for slope and z0.  No labels on the plots because it doesn’t matter,  widths are basically the same.
<PastedGraphic-1.png>

<PastedGraphic-2.png>


On Sep 27, 2017, at 8:34 AM, Nelson, Timothy Knight <tknelson at slac.stanford.edu<mailto:tknelson at slac.stanford.edu>> wrote:

Hey Matt,

I’m not so sure there is *nothing* to see there.  The width is certainly correlated with Pz in the s-z view (impossible to quantify by eye - sliced fits or just a profile would flesh this out) and there are trends in the tails of the r-phi view (looks interesting but not too serious).

T

On Sep 27, 2017, at 7:00 AM, Graham, Mathew Thomas <mgraham at slac.stanford.edu<mailto:mgraham at slac.stanford.edu>> wrote:

<electron-all-trkpar-vs-Pz-newcalc-pull.pdf>


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