<div dir="ltr">For reference, we had found evidence for elastic scattering from the gas in the empty target using coincidence between forward carriage ECAL info and CVT (even with partial phi coverage) as documented here<div><br><div><a href="https://logbooks.jlab.org/entry/3517628">https://logbooks.jlab.org/entry/3517628</a><br><div><a href="https://logbooks.jlab.org/entry/3517631">https://logbooks.jlab.org/entry/3517631</a><br></div><div><br></div><div>Also, those results did suggest significant energy loss for the protons in the central, but that was of course very early so things may be different now</div><div><br></div><div>I will submit runs 2443 and 2449</div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, May 3, 2018 at 1:40 PM, Mac Mestayer <span dir="ltr"><<a href="mailto:mestayer@jlab.org" target="_blank">mestayer@jlab.org</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Thank you, FX;<br>
<br>
I will talk to you this afternoon or tomorrow.<br>
I was not aware of this run, but it may be just what<br>
I need. - Mac<br>
<br>
"<a href="mailto:mestayer@jlab.org" target="_blank">mestayer@jlab.org</a>", (757)-269-7252<div class="HOEnZb"><div class="h5"><br>
<br>
On Thu, 3 May 2018, Francois-Xavier Girod wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Dear Mac<br>
<br>
Note that we have taken similar data at 2 GeV in the run range 2441 to 2449<br>
<br>
Best regards<br>
FX<br>
<br>
On Thu, May 3, 2018 at 10:49 AM, Mac Mestayer <<a href="mailto:mestayer@jlab.org" target="_blank">mestayer@jlab.org</a>> wrote:<br>
<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
Hello Lei and all;<br>
<br>
If possible, I would like to have a short alignment run with<br>
the torus turned off, but with the solenoid on.<br>
<br>
This would reduce our background from very low momentum electrons<br>
and should be complementary to the data we have already<br>
acquired (run 2467). In that data, we can use the target position<br>
as a constraint, but as I said we have a large contamination of<br>
very low-momentum tracks.<br>
<br>
An hour should give us good statistics.<br>
Because of a doctor's appointment, I may not be able to be<br>
at today's meeting, but please discuss this.<br>
<br>
regards, Mac<br>
<br>
"<a href="mailto:mestayer@jlab.org" target="_blank">mestayer@jlab.org</a>", (757)-269-7252<br>
<br>
On Thu, 3 May 2018, Lei Guo wrote:<br>
<br>
Dear All,<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
Steve (PD) gave us an update this morning at the MCC meeting. If you read<br>
somewhere in the logbook that the beam might be back in four hours around<br>
noon — it won’t happen. The best case scenario would be sometime during the<br>
swing shift when we could expect beam to back. The network issue is nearly<br>
resolved. However, there are a lot of remaining items the accelerator team<br>
needs to address before they can deliver beam.<br>
<br>
This gives us an opportunity for Hall Access if anyone needs it. Please<br>
let PDL and me know if you do need it.<br>
<br>
Additionally, if anyone needs special runs that do not need beam, such as<br>
cosmic runs, LED runs, calibration runs, please let me and the shift leader<br>
know.<br>
<br>
Realistically, we have about two days of data taking left if all goes<br>
well. Therefore, we must have a meeting today at 3pm to discuss the<br>
remaining plans.<br>
<br>
Let’s meet at 3pm in the counting house then. Meeting link is below<br>
<a href="https://bluejeans.com/7572697303/" rel="noreferrer" target="_blank">https://bluejeans.com/75726973<wbr>03/</a> <<a href="https://bluejeans.com/7572697303/" rel="noreferrer" target="_blank">https://bluejeans.com/7572697<wbr>303/</a>><br>
<br>
Lei<br>
</blockquote>
<br>
<br>
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</blockquote>
</blockquote>
</div></div></blockquote></div><br></div>