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<span style="font-size:12pt;font-family:"Times New Roman", serif">PAC49 will be held during the week of July 19, 2021 and will continue the call for new nuclear physics proposals. The PAC will judge the technical and scientific aspects of submitted proposals
and provide recommendations to Laboratory management. New proposals will be recommended for approval only if they represent high quality physics within the range of scientific importance represented by the previously approved 12 GeV proposals.<span class="Apple-converted-space"> </span><b><i><span style="color:red">The
deadline for submission of proposals and updates is 8:00 a.m. EDT (Eastern Daylight Time) on Monday, May 24<sup>th</sup>, 2021.</span></i></b><o:p> </o:p></span></p>
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<b><i><span style="font-size:12pt;font-family:"Times New Roman", serif">Proposals and updates for PAC49 should be submitted electronically using the instructions at<span class="Apple-converted-space"> </span></span></i></b><a href="http://www.jlab.org/exp_prog/PACpage/instructions.html"><b><i><span style="font-size:12pt;font-family:"Times New Roman", serif;color:blue">http://www.jlab.org/exp_prog/PACpage/instructions.html</span></i></b></a><span style="font-size:12pt;font-family:"Times New Roman", serif"><o:p> </o:p></span></p>
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<b><span style="font-size:12pt;font-family:"Times New Roman", serif">Please note:</span></b><span style="font-size:12pt;font-family:"Times New Roman", serif"><span class="Apple-converted-space"> </span>There are requirements in the submission process which,
if not completed, can result in your submission being considered ineligible for review at the PAC meeting.<span class="Apple-converted-space"> </span><b>Completion of coversheets is a mandatory requirement.</b>You will be prompted to complete each entry in
the coversheet.<span class="Apple-converted-space"> </span><b>All sections must be filled in.</b><span class="Apple-converted-space"> </span>In some cases, you may answer N/A (not applicable), and this data will be reflected in your final proposal submission.
There will be no follow-up queries from the Laboratory. If N/A is not appropriate for the proposal, it could result in the proposal being rejected for insufficient information. Also note that proposals which require new experimental equipment<span class="Apple-converted-space"> </span><b>must</b><span class="Apple-converted-space"> </span>include
additional information.<span class="Apple-converted-space"> </span><o:p> </o:p></span></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif"><o:p> </o:p></span></p>
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<span style="font-size: 12pt; font-family: "Times New Roman", serif; background-color: rgb(255, 255, 0);">All proposals must include an Executive Summary which is no longer than one page as the first page, detailing the following:</span><span style="font-size:12pt;font-family:"Times New Roman", serif"><o:p><span style="background-color: rgb(255, 255, 0);"> </span></o:p></span></p>
<ul>
<li><span style="font-size:12pt;font-family:"Times New Roman", serif">Main physics goals (please be specific)<o:p> </o:p></span></li><li><span style="font-size:12pt;font-family:"Times New Roman", serif">The proposed measurements / observables<o:p> </o:p></span></li><li><span style="font-size:12pt;font-family:"Times New Roman", serif">Specific requirements on detectors, targets and beam<o:p> </o:p></span></li><li><span style="font-size:12pt;font-family:"Times New Roman", serif">Resubmissions/Conditionals should clearly state what changed in the document compared with the previous one submitted to the PAC (please list previous PR and LOI numbers)<o:p> </o:p></span></li></ul>
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<span style="font-size:12pt;font-family:"Times New Roman", serif"><o:p> </o:p></span></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">See<span class="Apple-converted-space"> </span></span><a href="http://www.jlab.org/exp_prog/PACpage/guidelines.html"><span style="font-size:12pt;font-family:"Times New Roman", serif;color:blue">http://www.jlab.org/exp_prog/PACpage/guidelines.html</span></a><span style="font-size:12pt;font-family:"Times New Roman", serif"><span class="Apple-converted-space"> </span>for
more details.<o:p> </o:p></span></p>
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<b><span style="font-size:13.5pt;font-family:"Times New Roman", serif">New Proposals<o:p> </o:p></span></b></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">Detailed information on the process for proposal submission is available at<span class="Apple-converted-space"> </span></span><a href="http://www.jlab.org/exp_prog/PACpage/guidelines.html"><span style="font-size:12pt;font-family:"Times New Roman", serif;color:blue">http://www.jlab.org/exp_prog/PACpage/guidelines.html</span></a><span style="font-size:12pt;font-family:"Times New Roman", serif">.
New proposals will be granted a 20 minute presentation in a public session at the PAC meeting. Following the public presentation session the PAC will continue its discussions in closed session, and at least one spokesperson should be available either in person
or by phone for 24 hours after the public session to answer questions as the PAC's discussion progresses. Proposals will, if approved, be given a scientific rating and a beamtime allocation. Newly approved stage II (i.e., those using existing and/or funded
equipment) proposals will also be considered for "High Impact" status for scheduling priority, as per PAC41.<o:p> </o:p></span></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">New run group proposals (i.e., those requesting new beamtime) are defined as collections of proposed experiments that use common beam time and experimental equipment. Proposals for complete run
groups should be submitted at one PAC meeting, where all of the anticipated physics associated with the proposed run group will be considered. Each run group can submit up to 4 individual proposals (up to 3 physics topics plus 1 summary of additional topics)
and will be granted a maximum of 4 presentations corresponding to these proposals. The PAC may consider each of these for grading, but will attempt to provide a common assessment of the whole run group.<o:p> </o:p></span></p>
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<b><span style="font-size:13.5pt;font-family:"Times New Roman", serif">Additions to Previously Approved Run Groups<o:p> </o:p></span></b></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">New experimental proposals that do not require additional experimental equipment and that run (even partially) in parallel with previously approved run groups should be considered internally
by the proposing collaboration. Run group additions that require changes or additional equipment need to be submitted as full stand-alone proposals. Exceptions that require only minor changes or additions to the experimental equipment need to be discussed
with the Associate Director for Experimental Nuclear Physics before submission to the PAC as run group additions. It is also requested that documentation (e.g., proposal and report) from the internal collaboration review be submitted to the PAC for their information.
A collaboration representative will have the opportunity to report on these additional parallel running proposals to the PAC, and the PAC will then provide comments on them in its report.<o:p> </o:p></span></p>
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<b><span style="font-size:13.5pt;font-family:"Times New Roman", serif">Conditionally Approved Proposals<o:p> </o:p></span></b></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">The PAC may conditionally approve proposals when additional requirements must be fulfilled before full approval is granted. There are two categories of conditional approval:<span class="Apple-converted-space"> </span><o:p> </o:p></span></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">C2 - must return to the PAC to address concerns or issues to obtain approval,<o:p> </o:p></span></li><li class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;margin-bottom:.0001pt;mso-list:l1 level1 lfo1;tab-stops:list .5in">
<span style="font-size:12pt;font-family:"Times New Roman", serif">C1 - must meet designated technical requirements to obtain approval from laboratory management - a further PAC review is not required.<o:p> </o:p></span></li></ul>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">The rule for newly C2 conditionally approved 12 GeV proposals is that they must return for approval at one of the next 2 consecutive PAC meetings following the PAC at which they received the
conditional approval status.<o:p> </o:p></span></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">Proposals with previous conditional approval (C2) that wish to be considered for approval at PAC49 should submit an updated proposal and will be granted presentation time at the PAC meeting.
Following the public presentation session the PAC will continue its discussions in closed session, and at least one spokesperson should be available either in person or by phone for 24 hours after the public session to answer questions as the PAC's discussion
progresses. If approved, the proposals will be considered for rating along with the other approved proposals in the grading session.<o:p> </o:p></span></p>
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<b><span style="font-size:13.5pt;font-family:"Times New Roman", serif">Jeopardy<o:p> </o:p></span></b></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">Instructions for those affected by jeopardy will be sent directly to the contact persons under separate cover.<o:p> </o:p></span></p>
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<b><span style="font-size:13.5pt;font-family:"Times New Roman", serif">PAC Results<o:p> </o:p></span></b></p>
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<span style="font-size:12pt;font-family:"Times New Roman", serif">The results of the PAC's deliberations will become public as follows: the list of scientific ratings and beam time allocations will be provided to the Hall Leaders at the PAC closeout and then
posted on the PAC49 website within 24 hours. The final written PAC report will be posted on the PAC49 website and the user community notified by email as usual.<o:p> </o:p></span></p>
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<b><span style="font-size:13.5pt;font-family:"Times New Roman", serif">Appendix: Scientific Categories for Nuclear Physics Proposals<o:p> </o:p></span></b></p>
<ol start="1" type="1" style="margin-bottom:0in;caret-color:rgb(0, 0, 0);margin-top:0in">
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<b><span style="font-size:12pt;font-family:"Times New Roman", serif">Hadron spectra as probes of QCD</span></b><span style="font-size:12pt;font-family:"Times New Roman", serif"><br>
(GlueX and heavy baryon and meson spectroscopy)<o:p> </o:p></span></li><li class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2;tab-stops:list .5in">
<b><span style="font-size:12pt;font-family:"Times New Roman", serif">Transverse structure of the hadrons</span></b><span style="font-size:12pt;font-family:"Times New Roman", serif"><br>
(Elastic and transition Form Factors)<span class="Apple-converted-space"> </span><o:p> </o:p></span></li><li class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2;tab-stops:list .5in">
<b><span style="font-size:12pt;font-family:"Times New Roman", serif">Longitudinal structure of the hadrons</span></b><span style="font-size:12pt;font-family:"Times New Roman", serif"><br>
(Unpolarized and polarized parton distribution functions)<span class="Apple-converted-space"> </span><o:p> </o:p></span></li><li class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2;tab-stops:list .5in">
<b><span style="font-size:12pt;font-family:"Times New Roman", serif">3D structure of the hadrons</span></b><span style="font-size:12pt;font-family:"Times New Roman", serif"><br>
(Generalized Parton Distributions and Transverse Momentum Distributions)<span class="Apple-converted-space"> </span><o:p> </o:p></span></li><li class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2;tab-stops:list .5in">
<b><span style="font-size:12pt;font-family:"Times New Roman", serif">Hadrons and cold nuclear matter</span></b><span style="font-size:12pt;font-family:"Times New Roman", serif"><br>
(Medium modification of the nucleons, quark hadronization, N-N correlations, hypernuclear spectroscopy, few-body experiments)<span class="Apple-converted-space"> </span><o:p> </o:p></span></li><li class="MsoNormal" style="margin:0in 0in 8pt;font-size:11pt;font-family:Calibri, sans-serif;mso-margin-top-alt:auto;mso-margin-bottom-alt:auto;mso-list:l0 level1 lfo2;tab-stops:list .5in">
<b><span style="font-size:12pt;font-family:"Times New Roman", serif">Low-energy tests of the Standard Model and Fundamental Symmetries</span></b><span style="font-size:12pt;font-family:"Times New Roman", serif"><br>
(MOLLER, PVDIS, PRIMEX, ...)</span><o:p> </o:p></li></ol>
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