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<p>Agreed. I think for questions such as this, we need to analyze UNnconstraind vertices.</p>
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<p>Norman</p>
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<div id="divRplyFwdMsg" dir="ltr"><font color="#000000" face="Calibri, sans-serif" style="font-size:11pt"><b>From:</b> Hps-analysis <hps-analysis-bounces@jlab.org> on behalf of Graham, Mathew Thomas <mgraham@slac.stanford.edu><br>
<b>Sent:</b> Wednesday, August 2, 2017 10:58 AM<br>
<b>To:</b> Omar Moreno<br>
<b>Cc:</b> hps-analysis@jlab.org<br>
<b>Subject:</b> Re: [Hps-analysis] vertex x position</font>
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<div>If this is still target constrained then this will skew the mean by quite a bit...</div>
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<div>On Aug 2, 2017, at 11:56 AM, Omar Moreno <<a href="mailto:email@omarmoreno.net">email@omarmoreno.net</a>> wrote:</div>
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I'm seeing a much smaller shift (~-13 um) (see attached). I wonder how much you would need to move the target to get the 127 um shift we see in data? Just curious ...</div>
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<div class="gmail_quote">On Wed, Aug 2, 2017 at 9:54 AM, Rafayel Paremuzyan <span dir="ltr">
<<a href="mailto:rafopar@jlab.org" target="_blank">rafopar@jlab.org</a>></span> wrote:<br>
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This is the most recent scan with svt_top from 2015 data<br>
<a href="https://logbooks.jlab.org/entry/3340385" target="_blank" rel="noreferrer">https://logbooks.jlab.org/entr<wbr>y/3340385</a><br>
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It shows beam_x position is -0.127mm<br>
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So might be it is normal than Omar sees X slightly negative.<br>
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Rafo<br>
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