<html xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="Generator" content="Microsoft Word 15 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0in;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
p.msonormal0, li.msonormal0, div.msonormal0
{mso-style-name:msonormal;
mso-margin-top-alt:auto;
margin-right:0in;
mso-margin-bottom-alt:auto;
margin-left:0in;
font-size:11.0pt;
font-family:"Calibri",sans-serif;}
span.EmailStyle18
{mso-style-type:personal-reply;
font-family:"Calibri",sans-serif;
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-size:10.0pt;}
@page WordSection1
{size:8.5in 11.0in;
margin:1.0in 1.0in 1.0in 1.0in;}
div.WordSection1
{page:WordSection1;}
--></style>
</head>
<body lang="EN-US" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal">Dear Silvia,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">As you know the J/psi production experiment needs the maximum possible beam energy.<o:p></o:p></p>
<p class="MsoNormal">I am not sure that we have to agree to take 30 days in 2021 if the beam energy will be lower than it is necessary for this experiment, ideally 11 GeV/c.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Regards,<o:p></o:p></p>
<p class="MsoNormal">Valery<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<div style="border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="font-size:12.0pt;color:black">From: </span></b><span style="font-size:12.0pt;color:black">Clas12_rgb <clas12_rgb-bounces@jlab.org> on behalf of "silvia@jlab.org" <silvia@jlab.org><br>
<b>Date: </b>Friday, December 13, 2019 at 12:06<br>
<b>To: </b>"clas12_rgb@jlab.org" <clas12_rgb@jlab.org><br>
<b>Subject: </b>[Clas12_rgb] draft email to Marco<o:p></o:p></span></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Dear all,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">here is the draft of email for Marco, accordingly to what we discussed in<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">our meeting of this morning. Let me know if it needs any modification.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">I'd like to send it to him before end of business today.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Silvia<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">Dear Marco,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">thank you very much for offering us the opportunity to discuss the<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">scheduling of the rest of RGB. We had a discussion at our weekly meeting<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">today. In the most optimistic hypothesis (good and stable beam for the<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">whole of January), RGB will have run for ~40 PAC days at the end of this<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">first set of 2019-2020 runs, and with 3 different beam energies (10.6,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">10.2, 10.4).<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">In order to add a meaningful amount of data to existing sets we think we'd<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">need at least 30 more PAC days, taken at once and with the same<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">conditions, and at the highest possible beam energy. Therefore, if in 2021<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">you can only allocate 10 PAC days for RGB, and if, as you say, if we wait<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">we will have the priority for 2023, we prefer to wait until 2023 to take<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">at least 30 PAC days (or, ideally, as much as the PAC will allow us to<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">take provided all goes well with jeopardy). If, instead, you think we<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">could stretch somehow the plans for 2021 to accomodate 30 PAC days for<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">RGB, we'd accept without hesitation.<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Thanks a lot and best regards,<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Silvia<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
<div>
<p class="MsoNormal">_______________________________________________<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal">Clas12_rgb mailing list<o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><a href="mailto:Clas12_rgb@jlab.org">Clas12_rgb@jlab.org</a><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><a href="https://mailman.jlab.org/mailman/listinfo/clas12_rgb">https://mailman.jlab.org/mailman/listinfo/clas12_rgb</a><o:p></o:p></p>
</div>
<div>
<p class="MsoNormal"><o:p> </o:p></p>
</div>
</div>
</body>
</html>