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<div><font size="2"><span style="font-size:11pt;">Thank you to all of those who RSVP'd. See you at noon today in F113.<br>
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<div>Jefferson Lab's Graduate Student and Post-Doc Association Wiki:<br>
<span id="OBJ_PREFIX_DWT28015_com_zimbra_url"><span id="OBJ_PREFIX_DWT28016_com_zimbra_url"><span id="OBJ_PREFIX_DWT28025_com_zimbra_url"><a href="https://gspda.jlab.org/wiki/index.php/Main_Page" target="_blank" rel="noopener noreferrer" id="LPlnk961043" previewremoved="true">https://gspda.jlab.org/wiki/index.php/Main_Page</a></span></span></span><br>
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Please RSVP to: <span id="OBJ_PREFIX_DWT28017_ZmEmailObjectHandler"><span id="OBJ_PREFIX_DWT28019_ZmEmailObjectHandler"><span id="OBJ_PREFIX_DWT28026_ZmEmailObjectHandler">patient@jlab.org</span></span></span> by COB on
<span id="OBJ_PREFIX_DWT28018_com_zimbra_date"><span id="OBJ_PREFIX_DWT28020_com_zimbra_date"><span id="OBJ_PREFIX_DWT28027_com_zimbra_date">December 17.</span></span></span><br>
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<span id="OBJ_PREFIX_DWT28021_com_zimbra_date"><span id="OBJ_PREFIX_DWT28022_com_zimbra_date"><span id="OBJ_PREFIX_DWT28028_com_zimbra_date">Wednesday, December 19</span></span></span>, 2018<br>
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***F113***<br>
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12:00-1:00 pm<br>
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<div> "The Proton Radius"
<p style="margin-top:0; margin-bottom:0"> OR
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<p style="margin-top:0; margin-bottom:0"> "How I Stopped Worrying and Learned to Love Uncertainty"
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<p style="margin-top:0; margin-bottom:0"> Douglas W. Higinbotham
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<p style="margin-top:0; margin-bottom:0"> Jefferson Lab
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<p style="margin-top:0; margin-bottom:0">Abstract: In 2010, a muonic Lamb shift experiment rocked the atomic and nuclear
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<p style="margin-top:0; margin-bottom:0">physics communities by extracting a proton radius that was significantly smaller
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<p style="margin-top:0; margin-bottom:0">than previously determined. This new result launched many new electron-scattering
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<p style="margin-top:0; margin-bottom:0">and atomic Lamb shift experiments to discover the source of the difference: new
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<p style="margin-top:0; margin-bottom:0">physics or simply problems with the older measurements. I will review some of the
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<p style="margin-top:0; margin-bottom:0">recent proton radius results as well as present a discussion of the fundamental
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<p style="margin-top:0; margin-bottom:0">concepts of fitting experimental data: concepts that are at the heart of machine
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<p style="margin-top:0; margin-bottom:0">learning algorithms.</p>
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