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<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">Hello All,<span class="apple-converted-space"> </span><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><b><span style="font-size:12.0pt;color:black">Today</span></b><span style="font-size:12.0pt;color:black">, March 8th, at 1:00 PM (EST), Duff Neill will give our next hybrid theory seminar. If you will be on-site
and are comfortable doing so, please join us in room F224/225 of CEBAF Center. Otherwise, Duff's seminar will also be provided virtually on our usual ZoomGov link:<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black"><a href="https://jlab-org.zoomgov.com/j/1611179843?pwd=M09CNTFpbFVZSW1IQlhIMGp3RUVHUT09" title="https://jlab-org.zoomgov.com/j/1611179843?pwd=M09CNTFpbFVZSW1IQlhIMGp3RUVHUT09">https://jlab-org.zoomgov.com/j/1611179843?pwd=M09CNTFpbFVZSW1IQlhIMGp3RUVHUT09</a><span class="apple-converted-space"> </span><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">Please see below for the title and abstract.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><b><u><span style="font-size:12.0pt;color:black">Theory Seminar</span></u></b><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">Wednesday, March 8th at 1:00 PM<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">CEBAF Center room F224/225<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><b><u><span style="font-size:12.0pt;color:black">Duff Neill</span></u></b><span class="apple-converted-space"><span style="font-size:12.0pt;color:black"> </span></span><span style="font-size:12.0pt;color:black">(LANL)<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">will discuss "Fragmentation and Reciprocity"<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><b><u><span style="font-size:12.0pt;color:black">Abstract</span></u></b><span style="font-size:12.0pt;color:black">:<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">I will discuss the relationship between the anomalous dimension of<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">Parton Distribution Functions to Fragmentation Functions to all orders<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">in the coupling, motivated by findings in conformal field theory. In<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">particular, I will give a set of evolution equations whose kernels are<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">determined by the DGLAP anomalous dimensions for PDFs, but when solved<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">determine the structure of the fragmentation cross-section, especially<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">in the limit of soft fragmentation. This gives an all-orders extension<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">of the older leading log angular ordering approximation previously<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">used in fragmentation studies, with systematic approximations to the<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">resummed perturbative series for QCD. When coupled with the<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">parton-hadron duality hypothesis, this gives a model for light hadron<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">fragmentation that agrees very well with high energy electron-positron<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">data.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">Regards,<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:12.0pt;color:black">Caroline, Colin, & Patrick<o:p></o:p></span></p>
<p class="MsoNormal"><o:p> </o:p></p>
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