<html>
<head>
<style type="text/css" style="display:none;"><!-- P {margin-top:0;margin-bottom:0;} --></style>
</head>
<body dir="ltr">
<div id="divtagdefaultwrapper" style="font-size:12pt;color:#000000;font-family:Calibri,Helvetica,sans-serif;" dir="ltr">
<p style="margin-top:0;margin-bottom:0"><span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 10pt;">Dear all,</span><span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 10pt;"> </span><br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 10pt;">Here is a reminder for </span><span id="DWT91" class="ZmSearchResult" style="background-color: rgb(255, 254, 196); font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;"><span id="DWT95" class="ZmSearchResult" style="font-size: 10pt; font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0);">next</span></span><span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 10pt;"> </span><span id="DWT93" class="ZmSearchResult" style="background-color: rgb(255, 254, 196); font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;"><span id="DWT97" class="ZmSearchResult" style="font-size: 10pt; font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0);">week</span></span><span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 10pt;">'s
seminars:</span><br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 10pt;">Theory Seminars:</span><br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;">-Monday, January</span><span class="Object" id="OBJ_PREFIX_DWT98_com_zimbra_date" style="font-size: 14.16px; color: rgb(0, 90, 149); cursor: pointer; font-family: monospace;"><span class="Object" id="OBJ_PREFIX_DWT99_com_zimbra_date" style="font-size: 11pt; cursor: pointer; font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0);"> 7th,
1:00PM</span></span><span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;">, Room L102</span><br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<span style="color: rgb(51, 51, 51); font-family: monospace; font-size: 14.16px;"><span style="font-family: Arial, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">Neill Warrington</span><span style="font-family: Arial, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">
(U. of Maryland), "</span><span style="font-family: Arial, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">Deforming Path Integrals: Application to the (2+1) Thirring Model</span><span style="font-family: Arial, Helvetica, sans-serif; font-size: 11pt; color: rgb(0, 0, 0);">"</span></span><span style="color: rgb(51, 51, 51); font-family: monospace; font-size: 14.16px;"></span><br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;">Abstract:</span></p>
<p style="margin-top:0;margin-bottom:0"><span style="color: rgb(51, 51, 51); font-family: "Calibri Light", "Helvetica Light", sans-serif; font-size: 14.16px;"></span><span style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt;"><span style="font-family: Arial, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">Systems
of fermions at finite density have complex Boltzmann weights which cause the integrand of the pat</span><span style="font-family: Arial, Helvetica, sans-serif; font-size: 10pt; color: rgb(0, 0, 0);">h integral to become highly oscillatory. As a result of these
oscillations, standard Monte Carlo integration methods require exponential precision in the spacetime volume to compute observables with reasonable accuracy. However, deforming the path integration contour to well-chosen manifolds in the complex plane can
alleviate the sign problem. I will describe a deformation procedure which tames the sign problem called the "sign optimized manifold method", then apply it to the (2+1)d Finite Density Thirring Model, which is a theory with a sufficiently bad sign problem
that standard Monte Carlo methods fail.</span></span><br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<span style="color: rgb(51, 51, 51); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;"><br>
</span></p>
<p style="margin-top:0;margin-bottom:0"><span style="color: rgb(51, 51, 51); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;"><span style="color: rgb(0, 0, 0); font-size: 10pt;">BlueJeans connection:</span><span style="font-size: 10pt;"> </span></span><span class="Object" id="OBJ_PREFIX_DWT104_com_zimbra_url" style="font-size: 14.16px; color: rgb(0, 90, 149); cursor: pointer; font-family: monospace;"><span class="Object" id="OBJ_PREFIX_DWT105_com_zimbra_url" style="font-size: 1.18rem; cursor: pointer;"><span style="color: rgb(0, 90, 149); text-decoration-line: none; cursor: pointer; font-size: 11pt; font-family: Arial, Helvetica, sans-serif;"><a target="_blank" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__bluejeans.com_321085255&d=DwMFAw&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=60nExCXZj9SCzny0kAZk-AjVzjr42OsgTZnvcFFHHk8&m=Ub48L0rrbsKlmkDsjJpidt8onZ36NHlu4wVZTxnQH0M&s=ezK8P9xia1wHdFg05gSxLGKs1JImQaKYhA20u28k95Y&e=" id="LPlnk881514" class="OWAAutoLink" previewremoved="true" style="color: rgb(0, 90, 149); text-decoration-line: none; cursor: pointer; font-size: 1.18rem;"><span style="color: rgb(0, 111, 201); font-size: 12pt;">https://bluejeans.com/321085255</span></a></span></span></span></p>
<p style="margin-top:0;margin-bottom:0"><font color="#005a95" face="Arial, Helvetica, sans-serif"><span style="font-size: 14.6667px;"><br>
</span></font></p>
<p style="margin-top:0;margin-bottom:0"><font color="#005a95" face="Arial, Helvetica, sans-serif"><span style="font-size: 14.6667px;"><br style="">
</span></font><span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;">-Wednesday, January </span><span class="Object" id="OBJ_PREFIX_DWT100_com_zimbra_date" style="font-size: 14.16px; color: rgb(0, 90, 149); cursor: pointer; font-family: monospace;"><span class="Object" id="OBJ_PREFIX_DWT101_com_zimbra_date" style="font-size: 1.18rem; cursor: pointer;"><span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0);">9th</span><span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif; color: rgb(0, 0, 0);">,
1:00PM</span></span></span><span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;">, Room L102</span><br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;"><span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">Michelle Kuchera </span><span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">(</span><span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">Florida
State University</span><span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">), "</span></span><span style="font-family: Arial, Helvetica, sans-serif; font-size: 11pt;">Machine Learning for event simulation and classification in the Active-Target
Time Projection Chamber."</span></p>
<p style="margin-top:0;margin-bottom:0"><b style="font-family: -webkit-standard;"></b><span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;"><br>
<span style="font-size: 16px; font-family: -webkit-standard;"><span style="font-size: 11pt; font-family: Arial, Helvetica, sans-serif;">Abstract:</span><br>
<span style="font-weight: 400; font-size: 12pt; font-family: Calibri;"><span style="font-size: 10pt; font-family: Arial, Helvetica, sans-serif;">The Active-Target Time Projection Chamber (AT-TPC) is a high-efficiency detector used for low-energy nuclear reactions
at the National Superconducting Cyclotron Laboratory. A week-long experiment using the AT-TPC collects over 10 terabytes of data. </span><b style="font-family: -webkit-standard;"><span style="margin: 0px; font-family: Arial, Helvetica, sans-serif; font-size: 10pt; font-weight: 400;">Challenges
in analyzing data </span></b><span style="font-size: 10pt; font-family: Arial, Helvetica, sans-serif;">include simulating detector response to events, especially simulation of noisy events, and classification of reactions. Generative adversarial networks (GANs)
are used to improve simulations and convolutional neural networks (CNNs) are found to classify events most successfully. Implementation methods and results for the GANs and CNNs will be presented in the context of a proton elastic scattering experiment, </span></span><span style="font-weight: 400; font-size: 10pt; font-family: Arial, Helvetica, sans-serif; vertical-align: super;">46</span><span style="font-weight: 400; font-size: 10pt; font-family: Arial, Helvetica, sans-serif;">Ar(p,p),
with discussion of broader applications in nuclear physics. </span></span><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px;"> </span></span></p>
<p style="margin-top:0;margin-bottom:0"><span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;"><span style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 16px;"></span></span><font face="Calibri, Arial, Helvetica, sans-serif"><br style="">
</font><span style="color: rgb(91, 96, 101); font-family: Arial, Helvetica, sans-serif; font-size: 11pt;"><span style="color: rgb(0, 0, 0); font-size: 10pt;">BlueJeans connection</span>:<span style="font-size: 12pt;"> </span></span><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__bluejeans.com_195615763&d=DwMFAw&c=lz9TcOasaINaaC3U7FbMev2lsutwpI4--09aP8Lu18s&r=60nExCXZj9SCzny0kAZk-AjVzjr42OsgTZnvcFFHHk8&m=Ub48L0rrbsKlmkDsjJpidt8onZ36NHlu4wVZTxnQH0M&s=qxKW2PoXzZ1B7iinSDTsue17gYOmWJ3uBLy_AXadWMU&e=" style="box-sizing: border-box; color: rgb(172, 23, 43); text-decoration-line: none; word-break: break-word; font-family: avenir-light; font-size: 16px;" id="LPlnk749463" class="OWAAutoLink" previewremoved="true"><span style="font-size: 12pt; font-family: Arial, Helvetica, sans-serif; color: rgb(0, 111, 201);">https://bluejeans.com/195615763</span></a><br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<br style="font-size: 14.16px; color: rgb(51, 51, 51); font-family: monospace;">
<span style="color: rgb(0, 0, 0); font-family: Arial, Helvetica, sans-serif; font-size: 10pt;">Raza, Vincent, Carlota</span><br>
</p>
</div>
</body>
</html>