<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
<style type="text/css" style="display:none;"> P {margin-top:0;margin-bottom:0;} </style>
</head>
<body dir="ltr">
<div style="font-family: Calibri, Arial, Helvetica, sans-serif; font-size: 12pt; color: rgb(0, 0, 0);" class="elementToProof ContentPasted0">
<span><span class="ContentPasted0">D<span style="font-size: 12pt; line-height: 1.5; color: black;" class="ContentPasted0">ear all,</span></span></span>
<div dir="auto"><span style="font-size: 12pt; line-height: 1.5; color: black;" class="ContentPasted0"> </span></div>
<div><span dir="auto"><span style="font-size: 12pt; line-height: 1.5; color: black;" class="ContentPasted0">Today, at 1:00pm EDT, we will have a hybrid</span><span style="font-size: 12pt; line-height: 1.5; color: black;" class="ContentPasted0"> </span><span style="font-size: 12pt; line-height: 1.5; color: black;" class="ContentPasted0">seminar</span><span style="font-size: 12pt; line-height: 1.5; color: black;" class="ContentPasted0"> </span><span style="font-size: 12pt; line-height: 1.5; color: black;" class="ContentPasted0">given
by</span><span style="font-size: 12pt; line-height: 1.5; color: black;" class="ContentPasted0"> Utku Can</span><span style="font-size: 12pt; line-height: 1.5; color: black;" class="ContentPasted0"> of University of University of Adelaide in the Cebaf room
F224-225. For those who won't be able to attend in person, the seminar will also be available on the unique Zoom for Government link: </span><a href="https://jlab-org.zoomgov.com/j/1601080021?pwd=UzB0VmdiRHhRbXVvdHVIVHorR1pWZz09" target="_blank" rel="noopener noreferrer" data-auth="NotApplicable" class="x_OWAAutoLink ContentPasted0" id="OWA99455645-659e-cfa2-a171-a58729ec4cb0" data-linkindex="0">https://jlab-org.zoomgov.com/j/1601080021?pwd=UzB0VmdiRHhRbXVvdHVIVHorR1pWZz09<br>
</a>
<div id="LPBorder_GTaHR0cHM6Ly9qbGFiLW9yZy56b29tZ292LmNvbS9qLzE2MDEwODAwMjE:cHdkPVV6QjBWbWRpUkhoUmJYVnZkSFZJVkhvclIxcFdaejA5" class="LPBorder817139" style="margin-top:16px;margin-bottom:16px;max-width:800px;min-width:424px">
<table id="LPContainer817139" style="padding:12px;width:100%;border-width:1px;border-style:solid;border-color:rgb(200, 200, 200);border-radius:2px">
<tbody>
<tr valign="top" style="border-spacing:0px">
<td style="width:100%">
<div id="LPTitle817139" style="font-size:21px;font-weight:300;margin-right:8px;font-family:"wf_segoe-ui_light", "Segoe UI Light", "Segoe WP Light", "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif;margin-bottom:12px">
<a target="_blank" id="LPUrlAnchor817139" href="https://jlab-org.zoomgov.com/j/1601080021?pwd=UzB0VmdiRHhRbXVvdHVIVHorR1pWZz09" style="text-decoration:none" data-linkindex="1" class="ContentPasted0">Join our Cloud HD Video Meeting</a></div>
<div id="LPDescription817139" style="font-size: 14px; max-height: 100px; font-family: "wf_segoe-ui_normal", "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; margin-bottom: 12px; margin-right: 8px; overflow: hidden; color: rgb(102, 102, 102);" class="ContentPasted0">
Zoom is the leader in modern enterprise video communications, with an easy, reliable cloud platform for video and audio conferencing, chat, and webinars across mobile, desktop, and room systems. Zoom Rooms is the original software-based conference room solution
used around the world in board, conference, huddle, and training rooms, as well as executive offices and classrooms. Founded in 2011, Zoom helps businesses and organizations bring their teams together in a frictionless environment to get more done. Zoom is
a publicly traded company headquartered in San Jose, CA.</div>
<div id="LPMetadata817139" style="font-size: 14px; font-family: "wf_segoe-ui_normal", "Segoe UI", "Segoe WP", Tahoma, Arial, sans-serif; color: rgb(166, 166, 166);" class="ContentPasted0">
jlab-org.zoomgov.com</div>
</td>
</tr>
</tbody>
</table>
</div>
</span></div>
<div style="font-size: 12pt; color: rgb(0, 0, 0);"><span dir="auto">
<div>
<p style="font-size: 11pt; font-family: Calibri, sans-serif; margin: 0px; background-color: white;">
<span style="color: black;"><br class="ContentPasted0">
<br class="ContentPasted0">
</span><span style="font-size: 12pt; color: black;" class="ContentPasted0">Please see below for the details.</span></p>
<p style="font-size: 11pt; font-family: Calibri, sans-serif; margin: 0px; background-color: white;">
<span style="color: black;" class="ContentPasted0"> </span></p>
<p style="font-size: 11pt; font-family: Calibri, sans-serif; margin: 0px; background-color: white;">
<b><u><span style="font-size: 12pt; color: black;" class="ContentPasted0">Theory Seminar:</span></u></b></p>
<p style="font-size: 11pt; font-family: Calibri, sans-serif; margin: 0px; background-color: white;">
<span style="font-size: 12pt; color: black;" class="ContentPasted0">Wednesday August 9</span><span style="font-size: 12pt; color: black;"><sup class="ContentPasted0">th</sup></span><span style="font-size: 12pt; color: black;" class="ContentPasted0">, 1pm EDT
(F224-F225)</span></p>
</div>
<div>
<p style="font-size:11pt;font-family:Calibri,sans-serif;margin:0"><span style="font-size: 12pt; color: black;" class="ContentPasted0"> </span></p>
</div>
<div>
<p style="margin-top: 0px; margin-bottom: 0px; background-color: white;"><span><b><u><span style="color: black;" class="ContentPasted0">Speaker</span></u></b><span style="color: black;" class="ContentPasted0">:</span></span><span><span style="color: black;" class="ContentPasted0">
Utku Can (University of Adelaide)</span></span></p>
<p style="margin-top: 0px; margin-bottom: 0px; background-color: white;"><span><span style="color: black;" class="ContentPasted0"> </span></span></p>
<p style="margin-top: 0px; margin-bottom: 0px; background-color: white;"><span><b><u><span style="color: black;" class="ContentPasted0">Title</span></u></b><span style="color: black;" class="ContentPasted0">:
</span><span style="color: black;"><span class="ContentPasted0">Compton amplitude and the nucleon structure functions from a lattice QCD calculation</span><br class="ContentPasted0">
<br class="ContentPasted0">
<span><b><u><span class="x_ContentPasted0 ContentPasted0">Abstract</span></u></b><span class="x_ContentPasted0 ContentPasted0">:</span></span></span><span style="color: black;" class="ContentPasted0">
</span><span style="color: black;" class="ContentPasted0"><span class="x_ContentPasted1 ContentPasted0">The structure of hadrons relevant for deep-inelastic scattering are completely characterised by the Compton amplitude. The standard approach in structure
function calculations is to utilise the operator product expansion (OPE). However, it is well established in the lattice community that computing higher-twist contributions presents additional challenges that are not easily overcome; complicating the investigations
of hadron structure at a deeper level. Alternatively, it is possible to directly calculate the Compton amplitude by taking advantage of the familiar Feynman-Hellmann approach applied in the context of lattice QCD. By working with the physical amplitude, the
intricacies of operator mixing and renormalisation that plague the OPE approach are circumvented. Additionally, higher-twist contributions become more accessible.</span><span class="x_ContentPasted1" style="font-size:11pt"><br class="x_ContentPasted1 ContentPasted0">
<br class="x_ContentPasted1 ContentPasted0">
</span><span class="x_ContentPasted1 ContentPasted0">In this talk, I will be highlighting QCDSF/UKQCD Collaboration's recent developments on computing the Compton amplitude. I discuss how to access the Compton amplitude directly via the second-order Feynman-Hellmann
theorem. I will present our nucleon Compton amplitude results for different structure functions across a range of photon momenta. This enables us to study the $Q^2$ dependence of the low moments of the nucleon structure functions in a lattice calculation.
I will also discuss possible further applications of this approach and present some preliminary results.</span><br class="ContentPasted0">
<br class="ContentPasted0">
See you on soon,<br class="ContentPasted0">
Caroline, Patrick & Joe</span></span></p>
</div>
</span></div>
<br>
</div>
</body>
</html>