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<p class="MsoNormal" style="background:white"><span style="font-size:10.5pt;color:black;background:white">Dear everyone,</span><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"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.5pt;color:black">Tomorrow, Monday, October 25th at 1:00PM (EDT), <span class="field-content">Balasubramanian Ananthanarayan </span><span class="apple-converted-space"> </span>will give
a seminar on<span class="apple-converted-space"> </span><a href="https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab.bluejeans.com_319089525_6769&d=DwMFAw&c=CJqEzB1piLOyyvZjb8YUQw&r=AIMSQQ81YDyrZuJNGks2qw&m=x29E57UMx34WjoS-yLXZS2qNLfa_SlSw0J1QuFd6u80&s=YZDnEovFtz29HvbN26a0A0rgHtJ1M_tEUQ7YAbyNdgA&e=" target="_blank" title="https://urldefense.proofpoint.com/v2/url?u=https-3A__jlab.bluejeans.com_319089525_6769&d=DwMFAw&c=CJqEzB1piLOyyvZjb8YUQw&r=AIMSQQ81YDyrZuJNGks2qw&m=x29E57UMx34WjoS-yLXZS2qNLfa_SlSw0J1QuFd6u80&s=YZDnEovFtz29HvbN26a0A0rgHtJ1M_tEUQ7YAbyNdgA&e="><span style="color:#E49FFF">https://jlab.bluejeans.com/319089525/6769</span></a>.</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.5pt;color:black">Please see below for the details.</span><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"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><b><u><span style="font-size:10.5pt;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:10.5pt;color:black">Monday October 25th, 1:00PM</span><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"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span class="field-content"><b><span style="font-size:10.5pt;color:black">Balasubramanian Ananthanarayan</span></b></span><span class="field-content"><span style="font-size:10.5pt;color:black"> (Indian Institute
of Science)</span></span><span class="apple-converted-space"><span style="font-size:10.5pt;color:black"> </span></span><span style="font-size:10.5pt;color:black">will speak about "(g-2) of the Muon: Theory and Experiment Challenge One Another"</span><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"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><b><u><span style="font-size:10.5pt;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:10.5pt;color:black">The muon is a heavy cousin of the electron and has a gyromagnetic ratio of 2 in the classical limit, which was predicted by Dirac. In QED it receives an anomalous magnetic
moment which was computed by Julian Schwinger at leading order. Today, in QED it is evaluated to very high loop order, and also receives corrections from virtual processes in the vacuum as dictated by the laws of quantum field theory, which have to be evaluated
in a variety of ways. It is also measured at high precision today at Fermilab, whose recent results confirm the value measured at Brookhaven about 20 years ago. More data is being gathered to lower the uncertainty. The theoretical value which is known at high
precision deviates from the experimental measurement at several standard deviations. The quantity is also measured on the lattice with larger errors. In this talk, meant for a non-specialist audience, we will review these developments. Time permitting, we
will speak about our own work that has played a role in lowering the uncertainties in the theoretical hadronic vacuum polarization contributions.<o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.5pt;color:black"><o:p> </o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.5pt;color:black"><br>
About the speaker: B. Ananthanarayan, Anant for short, is Professor at the Centre for High Energy Physics (CHEP), Indian Institute of Science (IISc), Bangalore, India, where he has spent close to 25 years. He chaired the CHEP for nearly 9 years and 8 months.
Anant obtained his Masters (1988) and Ph. D. (1991) from the University of Delaware, Newark, DE, after his undergraduate education at IIT Madras in Chemical Engineering where he earned his Bachelor of Technology degree in 1985. Anant did postdoctoral work
at Physical Research Laboratory, Ahmedabad, India, Universities of Lausanne and Bern in Switzerland, before taking up a faculty position at IISc. He is an author of over a hundred publications in refereed international journals, and has served as member of
the editorial boards of the European Physical Journal A, and of Special Topics currently, and is on the board of editors the Springer Briefs in Physics series. Anant spent about 6 months at the JLab, theThomas Jefferson National Accelerator Facility, Newport
News, VA in 2003. He is also well known for his activities in explaining physics to the public through his writings and talks.</span><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"><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:10.5pt;color:black">See you tomorrow!</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
<p class="MsoNormal" style="background:white"><span style="font-size:10.5pt;color:black;background:white">Astrid, Colin, and Patrick</span><span style="font-size:12.0pt;color:black"><o:p></o:p></span></p>
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