Hi Brad,<br><br> I think that the prshower location that was wrong was because it was copied from an old .dat file.<br><br> The other positions are consistent with the transversity locations.<br><br>-Matt<br><br><div class="gmail_quote">
On Fri, Jul 23, 2010 at 5:41 PM, Brad Sawatzky <<a href="mailto:brads@jlab.org">brads@jlab.org</a>> wrote:<br><blockquote class="gmail_quote">
<div class="im">On Fri, 16 Jul 2010, <a href="mailto:posik@jlab.org">posik@jlab.org</a> wrote:<br>
<br>
</div><div><div></div><div class="h5">> I have started working on the optics. Here I show the results for a no<br>
> field run that we took, run 1250.<br>
><br>
> The no field run is done in order to define the position of the wire<br>
> chamber through data. Here I compare my results to the results that<br>
> Diana/Xin have found. The d2n_mp_xxxx are the plots that I made and the<br>
> d2n_xxxx are the comparison plots that were done by Diana/Xin (not sure<br>
> who made them). They seem to agree rather well with each other.<br>
<br>
</div></div>That is good to see.<br>
<br>
Back in mid-June you made a change to the preshower location in the<br>
Database files and it made a big difference in the track reconstruction,<br>
cluster identification, etc.<br>
<br>
Did you ever figure out why the preshow location was wrong? Are the<br>
other detector component positions verified? (Or at least compared to<br>
the Transversity data.)<br>
<div class="im"><br>
-- Brad<br>
<br>
--<br>
Brad Sawatzky, PhD <<a href="mailto:brads@jlab.org">brads@jlab.org</a>> -<>- Jefferson Lab / Hall C / C111<br>
Ph: 757-269-5947 -<>- Fax: 757-269-5235 -<>- Pager: <a href="mailto:brads-page@jlab.org">brads-page@jlab.org</a><br>
The most exciting phrase to hear in science, the one that heralds new<br>
discoveries, is not "Eureka!" but "That's funny..." -- Isaac Asimov<br>
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</blockquote></div><br><br clear="all"><br>-- <br>Matthew Posik<br>Email: <a href="mailto:posik@temple.edu">posik@temple.edu</a><br>Temple University Physics Dept.<br>Office: BA-319<br>Office #: 215-204-1331 <br>WebSites:<br>
Temple:<br><a href="http://quarks.temple.edu/">http://quarks.temple.edu/</a><br>d2n:<br><a href="http://hallaweb.jlab.org/experiment/E06-014/">http://hallaweb.jlab.org/experiment/E06-014/</a><br><br>