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<th nowrap="nowrap" valign="BASELINE" align="RIGHT">Subject:
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<td>Physics Colloquium - February 16, “IceCube and the
Discovery of High-Energy Cosmic Neutrinos"</td>
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<th nowrap="nowrap" valign="BASELINE" align="RIGHT">Date: </th>
<td>Mon, 12 Feb 2018 20:28:22 +0000</td>
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<th nowrap="nowrap" valign="BASELINE" align="RIGHT">From: </th>
<td>Wilkinson, Ellie V <a class="moz-txt-link-rfc2396E" href="mailto:evwilk@wm.edu"><evwilk@wm.edu></a></td>
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<th nowrap="nowrap" valign="BASELINE" align="RIGHT">To: </th>
<td><a class="moz-txt-link-abbreviated" href="mailto:physics2017@physics.wm.edu">physics2017@physics.wm.edu</a>
<a class="moz-txt-link-rfc2396E" href="mailto:physics2017@physics.wm.edu"><physics2017@physics.wm.edu></a></td>
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<th nowrap="nowrap" valign="BASELINE" align="RIGHT">CC: </th>
<td><a class="moz-txt-link-abbreviated" href="mailto:undergrads2017@physics.wm.edu">undergrads2017@physics.wm.edu</a>
<a class="moz-txt-link-rfc2396E" href="mailto:undergrads2017@physics.wm.edu"><undergrads2017@physics.wm.edu></a></td>
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<div class="WordSection1">
<p class="MsoNormal"><b><u><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif;color:#0070C0">PHYSICS COLLOQUIUM</span></u></b><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif;color:#0070C0"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">Friday, February 16, 2018<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">4:00 PM
<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">Small Hall, Room 111<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"> <o:p></o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif;color:#0070C0">Francis Halzen
</span></b><b><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">[
</span></b><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">Host: M. Sher]<b>
</b><span style="color:#0070C0"><o:p></o:p></span></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">Wisconsin IceCube Particle Astrophysics
Center and Department of Physics
<br>
University of Wisconsin–Madison</span><span
style="font-size:12.0pt"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><br>
Title of Talk: </span></b><b><span
style="font-size:14.0pt;font-family:"Times New
Roman",serif;color:#0070C0">“IceCube and the
Discovery of High-Energy Cosmic Neutrinos”</span></b><b><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><u><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif;color:#0070C0">Abstract:<o:p></o:p></span></u></b></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif">The IceCube project has transformed a
cubic kilometer of natural Antarctic ice into a neutrino
detector. The instrument detects more than 100,000 neutrinos
per year in the GeV to PeV energy range. Among those, we
have isolated a flux of high-energy cosmic neutrinos. I will
discuss the instrument, the analysis of the data, the
significance of the discovery of cosmic neutrinos, and the
recent multimessenger observation of a flaring TeV blazar in
coincidence with the IceCube neutrino alert IC170922. The
large cosmic neutrino flux observed implies that the
Universe’s energy density in high-energy neutrinos is the
same as that in gamma rays, suggesting that the sources are
connected and that a multitude of astronomical objects await
discovery.<o:p></o:p></span></p>
<p class="MsoNormal"><i><o:p> </o:p></i></p>
<p class="MsoNormal"><i><o:p> </o:p></i></p>
<p class="MsoNormal"><b><i><span style="font-family:"Times
New Roman",serif">Cookies & Coffee will be
served in Small 122 at
<span style="color:#1F497D">3</span>:30pm<o:p></o:p></span></i></b></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:12.0pt;font-family:"Times New
Roman",serif"><o:p> </o:p></span></p>
<p class="MsoNormal"><span
style="font-size:10.0pt;font-family:"Times New
Roman",serif;color:black">******</span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:12.0pt;font-family:"Monotype
Corsiva";color:#1F497D">Eleonor V. Wilkinson</span></b><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Georgia",serif;color:black">Administrative
& Office Specialist
</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Georgia",serif;color:black">The
College of William & Mary-Physics<br>
Small Hall, Room 123<br>
300 Ukrop Way<br>
Williamsburg, VA 23185</span><span style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Times New
Roman",serif;color:black">Telephone: 757-221-3503</span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoNormal"><span
style="font-size:9.0pt;font-family:"Times New
Roman",serif;color:black">Fax: 757-221-3540</span><span
style="color:black"><o:p></o:p></span></p>
<p class="MsoPlainText"> <o:p></o:p></p>
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