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<div class="moz-cite-prefix">Mohammad,<br>
<br>
I was wondering if you did get the latest version of the FASTMC?
<br>
<br>
As we discussed when I was at Argonne the distortions come from
the fact that you plot the phi angle in the vertex frame. I guess
even a more recent version of FASTMC will give a similar
distortion, as it is the result of the solenoid field bending the
electrons in phi and with increasing polar angle and lower
momentum the effect will be increasing. So, electrons entering one
given sector have started at different phi angles at the vertex.
In order to eliminate the effect you need to plot against the phi
angle at the first layer of DC region 1 as the integrated solenoid
field is nearly zero there. <br>
I am not sure the FASTMC allows you to do it, but once you use the
full reconstruction then the coordinate in DC layer 1 region 1
(dc1) should be computed and phi_dc1 calculated. <br>
<br>
I hope that helps,<br>
Volker<br>
<br>
<br>
<br>
<br>
<br>
<br>
On 11/11/15 12:57 PM, <a class="moz-txt-link-abbreviated" href="mailto:hattawy@jlab.org">hattawy@jlab.org</a> wrote:<br>
</div>
<blockquote
cite="mid:57220.146.137.70.71.1447264648.squirrel@webmail.jlab.org"
type="cite">
<pre wrap="">Dear All,
I am using a relatively old version of CLAS12 fastmc which gives me a
huge deflection in the azimulthal angles for the electrons at polar
angles greater than 15 deg (see attached plot for the DVCS electrons
using beam energy of 11 GeV).
Can you please direct me where I can find the latest or a tested
version of CLAS12 fastmc. Thanks in advance for the help.
Best regards,
Mohammad Hattawy.</pre>
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<pre wrap="">This body part will be downloaded on demand.</pre>
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