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<p>Dear Latifa, dear All,<br>
</p>
<p>as FX already said, the matter has been discussed during the Run
group K meeting last Friday. <br>
</p>
<p>Volker reported that the new machine schedule foresees the change
of energy starting from November 29th instead of November 19th,
with a loss of 10 days of run.</p>
<p>See the attached slide.</p>
<p>At present the run group K run is planned for 11 (solar) days at
7.5 GeV and 8 (solar) days at 6.5 GeV.</p>
<p>It has been discussed the option of requesting additional 7-10
days during the spring data taking extension on March-April, after
rung group B period. This would require Hall-B asking for 3 or 4
pass beam. The persons attending the meeting agreed to submit the
request at the Friday meeting with the Laboratory management.</p>
<p>Now the question posed by the CCC is two-fold: <br>
</p>
<p>1. would the 2018 data be enough for run group K to provide a
publication?</p>
<p>2. what would be the impact of an additional week of data taking
in spring 2019?</p>
<p>I understand that while the former run schedule included run
group K because the available beam energy is incompatible with all
other run group requests, the additional 2019 spring week could be
also used by run group A, for example. So the decision to run at
different number of passes (6.4 GeV or 8.8 GeV) must be well
motivated.</p>
<p>Before answering I would appreciate collecting your suggestions
or comments.</p>
<p>All the best</p>
<p>Annalisa</p>
p.s. no time line has been posed in the request, but I assume the
sooner the better...<br>
<div class="moz-cite-prefix">Il 15/10/18 14:03, Volker Burkert ha
scritto:<br>
</div>
<blockquote cite="mid:094FFBD1-FF58-4875-B8CC-343BFD4E1395@jlab.org"
type="cite">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div>We all like to have a peal meal instead of taken data
'piece-meal'. 😉<br>
<br>
Sent from my iPhone</div>
<div><br>
On Oct 15, 2018, at 7:40 AM, Francois-Xavier Girod <<a
moz-do-not-send="true" href="mailto:fxgirod@jlab.org">fxgirod@jlab.org</a>>
wrote:<br>
<br>
</div>
<blockquote type="cite">
<div>
<div dir="ltr">Dear Latifa
<div><br>
</div>
<div>We had a discussion at last week's RG-K meeting, but it
was only few participants, so I think this is why Annalisa
is continuing a discussion here.</div>
<div><br>
</div>
<div>During the meeting we discussed that getting PAC days
peace-meal for a short experiment is detrimental and will
affect systematical uncertainties. One simple argument
however was that having data is better not having data at
all. We agreed with the proposal of getting one week for
RG-K and three weeks for RG-A. We did not decide on the
number of passes we would request. </div>
<div><br>
</div>
<div>Personally I hope that RG-K will be fully scheduled in
the future for the remainder of the PAC approved days,
even if it means we have to wait a bit longer. Increased
systematical uncertainties is contrary to the physics goal
of our experiment.</div>
<div><br>
</div>
<div>Best regards</div>
<div>FX</div>
<div><br>
</div>
<div>Best regards</div>
<div>FX</div>
<div><br>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr">On Mon, Oct 15, 2018 at 1:27 PM Latifa
Elouadrhiri <<a moz-do-not-send="true"
href="mailto:latifa@jlab.org">latifa@jlab.org</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0
.8ex;border-left:1px #ccc solid;padding-left:1ex">
<div text="#000000" bgcolor="#FFFFFF">
<p>Dear Annalisa,</p>
<p>Is this related to the email from Volker last week,
we didn't hear from you on that email of request from
RGK? Did you make request of RGK on our behalf and
how many weeks did you request? where does one week
come from?<br>
</p>
<p>Could you please give us more information on the
running conditions beam energies?</p>
<p>Best regards,</p>
<p>Latifa<br>
</p>
<p><br>
</p>
<br>
<div class="m_1507341810075698021moz-cite-prefix">On
10/15/18 6:49 AM, Annalisa D'Angelo wrote:<br>
</div>
<blockquote type="cite">
<p>Dear All,</p>
<p>the CCC is asking us about the impact on the
physics of Run Group K if we add one week of data
taking in spring 2019 to the three weeks (instead of
four) now expected for 2018.</p>
<p>They would like to know if we will have enough data
to produce some publication from the 2018 data
(eventually including the additional week in 2019).</p>
<p>Please send me your comments and your opinion about
the possibility of an early publication from your
proposed experiment.</p>
<p>I will collect the information and write the draft
for a response.</p>
<p>Best regards</p>
<p>Annalisa<br>
</p>
<div
class="m_1507341810075698021moz-forward-container"><br>
<br>
-------- Messaggio Inoltrato --------
<table
class="m_1507341810075698021moz-email-headers-table"
border="0" cellpadding="0" cellspacing="0">
<tbody>
<tr>
<th valign="BASELINE" align="RIGHT"
nowrap="nowrap">Oggetto: </th>
<td>impact of schedule change on RG-K</td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT"
nowrap="nowrap">Data: </th>
<td>Sun, 14 Oct 2018 22:48:04 -0400</td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT"
nowrap="nowrap">Mittente: </th>
<td>Raffaella De Vita <a
moz-do-not-send="true"
class="m_1507341810075698021moz-txt-link-rfc2396E"
href="mailto:Raffaella.Devita@ge.infn.it"
target="_blank"><Raffaella.Devita@ge.infn.it></a></td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT"
nowrap="nowrap">A: </th>
<td>Annalisa D'Angelo <a
moz-do-not-send="true"
class="m_1507341810075698021moz-txt-link-rfc2396E"
href="mailto:annalisa.dangelo@roma2.infn.it" target="_blank"><annalisa.dangelo@roma2.infn.it></a></td>
</tr>
<tr>
<th valign="BASELINE" align="RIGHT"
nowrap="nowrap">CC: </th>
<td>burkert <a moz-do-not-send="true"
class="m_1507341810075698021moz-txt-link-rfc2396E"
href="mailto:burkert@jlab.org"
target="_blank"><burkert@jlab.org></a>,
Michael H Wood <a moz-do-not-send="true"
class="m_1507341810075698021moz-txt-link-rfc2396E"
href="mailto:wood5@canisius.edu"
target="_blank"><wood5@canisius.edu></a>,
Marco.Battaglieri <a moz-do-not-send="true"
class="m_1507341810075698021moz-txt-link-rfc2396E"
href="mailto:battaglieri@ge.infn.it"
target="_blank"><battaglieri@ge.infn.it></a>,
Marco Contalbrigo <a moz-do-not-send="true"
class="m_1507341810075698021moz-txt-link-rfc2396E"
href="mailto:mcontalb@fe.infn.it"
target="_blank"><mcontalb@fe.infn.it></a></td>
</tr>
</tbody>
</table>
<br>
<br>
<pre>Dear Annalisa,
on Friday we had a CCC meeting to discuss the change in the accelerator schedule for 2018 and 2019.
The discussion was specifically focussed on the 4 week extension that are being considered for the Spring 2019.
The rational we have been following is to use this additional time to compensate for the losses that
the different Run Groups will have for the delayed start of the machine after the summer shutdown
and the other changes that are being done to the schedule. Among these, the extension of the 10.6 GeV
running to after Thanksgiving and the consequent shortening of the low energy running at the end of
this year are directly affecting Run Group. In this regard, what is being considered is to assign to
Run Group K a week in the Spring 2019 after RG-B. To take a sound decision on this,
we would like to have your feedback on the possibility for RG-K to have a publication from the 2018 run
with the reduced time and on what would be the gain if another week of beam would be allocated in the Spring.
Best regards,
Raffaella
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<pre class="moz-signature" cols="72">--
================================================
Prof. Annalisa D'Angelo
Dip. Fisica, Universita' di Roma "Tor Vergata"
INFN Sezione di Roma Tor Vergata, Rome Italy
<a class="moz-txt-link-abbreviated" href="mailto:email:annalisa.dangelo@roma2.infn.it">email:annalisa.dangelo@roma2.infn.it</a>
Jefferson Laboratory, Newport News, VA USA
Email: <a class="moz-txt-link-abbreviated" href="mailto:annalisa@jlab.org">annalisa@jlab.org</a>
Tel: + 39 06 72594562
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