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<p class="MsoNormal"><span style="font-size:11.0pt">Dear Colleagues,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Frank Close (Oxford) will be speaking on Monday at a special colloquium hosted by David (see below).<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">We thought it would be nice to talk to him during a combined (bring your own) Particle Physics lunch
<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">in the theory room from 12-1. See you there!<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">Best regards,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt">David and Oliver<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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<p class="MsoNormal"><span style="font-family:"inherit",serif;color:#45454A">Mon ,<br>
2019-09-23<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-top:18.0pt"><span style="font-family:"inherit",serif;color:#45454A">14:00<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-top:18.0pt"><span style="font-family:"inherit",serif;color:#45454A">Colloquium<o:p></o:p></span></p>
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<p class="MsoNormal"><b><span style="font-family:"inherit",serif;color:#45454A;border:none windowtext 1.0pt;padding:0cm">Frank Close</span></b><span style="font-family:"inherit",serif;color:#45454A"><br>
Oxford U<o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-top:18.0pt"><span style="font-family:"inherit",serif;color:#45454A">Half Life - the divided life of Bruno Pontecorvo, physicist and spy<o:p></o:p></span></p>
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<p class="MsoNormal" align="right" style="margin-top:18.0pt;text-align:right"><b><span style="font-family:"inherit",serif;color:#45454A;border:none windowtext 1.0pt;padding:0cm">Abstract:</span></b><span style="font-family:"inherit",serif;color:#45454A"><o:p></o:p></span></p>
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<p class="MsoNormal" style="margin-top:18.0pt"><span style="font-family:"inherit",serif;color:#45454A">Bruno Pontecorvo is associated with the idea of solar neutrinos, neutrino oscillations and neutrinos from supernovas. He might have won a Nobel Prize had
he not disappeared through the Iron Curtain in 1950, half-way through his life. One of the most brilliant scientists of his generation he had worked at Chalk River on the Anglo-Canadian arm of the Manhattan Project and quietly discovered a way to find the
uranium coveted by nuclear powers. Yet when he disappeared, MI5 insisted he was not a threat. Now, based on unprecedented access to archives, letters, surviving family members and scientists, Frank Close exposes the truth about Pontecorvo, assesses his work
on the neutrino, and reveals the reason for his sudden flight from Harwell to the USSR, six months after the arrest of his colleague, Klaus Fuchs.<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt"><o:p> </o:p></span></p>
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