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Hi Sean,<br>
<br>
Thanks for passing on these plots. In particular the efficiency
plots are interesting. Some of the efficiency issues in the data
depend on whether we were running in mode 7 or 8, as I showed at the
last collaboration meeting. Ahmed is looking into this.<br>
<br>
Cheers, Elton.<br>
<pre class="moz-signature" cols="72">Elton Smith
Jefferson Lab MS 12H3
12000 Jefferson Ave STE 4
Newport News, VA 23606
(757) 269-7625
(757) 269-6331 fax </pre>
<div class="moz-cite-prefix">On 6/4/15 5:16 PM, Sean Dobbs wrote:<br>
</div>
<blockquote
cite="mid:CAEAoKm7NRj+9uX7t=nsrYiyqpuBWTG5guxysHxR4OW+pQy6X3A@mail.gmail.com"
type="cite">
<div dir="ltr">Hi all,<br>
<br>
I've analyzed some bggen data I made for a different study, and
found similar results to Tegan's [see
attached BCAL_inv_mass-mc-cluster.pdf and
BCAL_inv_mass-mc-shower.pdf]. An un-expert look at the
reconstruction code suggests that the attenuation lengths are
used in the energy reconstruction and these are indeed different
for data and MC.
<div><br>
</div>
<div>There might be a mismatch in the values of the attenuation
lengths used in the simulation, and reconstruction, though.
When I look at BCAL/mc_parms, I find the
parameter ATTEN_LENGTH = 300. When I look at the mc variation
of BCAL/attenuation_parameters, I find the lengths for each
channel are set to 310. Probably these should be set to the
same value?<br>
<div><br>
</div>
<div>Another discrepancy I noticed was that the efficiency in
each layer calculated with Elton's BCAL_Eff plugin was
different for MC and data. For example:</div>
<div>- Data Run 2931 - bcal_hist_eff-run3185.png</div>
<div>- MC - bcal_hist_eff-mc.png</div>
<div>I'm not sure if the smaller efficiency in MC is related
to problems reconstructing certain BCAL points, or other
issues with the clusterizer..</div>
<div><br>
</div>
<div>Cheers,</div>
<div>Sean</div>
<div><br>
<div class="gmail_quote">
<div dir="ltr">On Thu, Jun 4, 2015 at 2:47 PM beattite
<<a moz-do-not-send="true"
href="mailto:beattite@uregina.ca">beattite@uregina.ca</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">Hello.<br>
<br>
Here are the mcsmear comparison plots using the
variation=mc variable.<br>
There are two files. One is the mass spectra using
cluster energies,<br>
the other is using shower energies.</blockquote>
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