<div dir="ltr"><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div>Valeria Giuliani</div><div>Scuola Normale Superiore</div><div>Servizio alla Didattica e Allievi</div><div>tel. 050 509260</div><div>Piazza dei Cavalieri, 7</div><div>56126 Pisa</div><div>E-mail: <a href="mailto:valeria.giuliani@sns.it" target="_blank">valeria.giuliani@sns.it</a></div><div>E-mail: <a href="mailto:classi@sns.it" target="_blank">classi@sns.it</a></div></div></div></div><br><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">---------- Forwarded message ---------<br>Da: <strong class="gmail_sendername" dir="auto">Valeria Giuliani</strong> <span dir="ltr"><<a href="mailto:valeria.giuliani@sns.it">valeria.giuliani@sns.it</a>></span><br>Date: lun 6 mag 2019 alle ore 11:47<br>Subject: avviso Colloquio della Classe di Scienze, prof. Lee Roberts (15.05.2019) -<br>To: professori.contratto.sci <<a href="mailto:professori.contratto.sci@sns.it">professori.contratto.sci@sns.it</a>>,  <<a href="mailto:professori.sci@sns.it">professori.sci@sns.it</a>>, ricercatori.sci <<a href="mailto:ricercatori.sci@sns.it">ricercatori.sci@sns.it</a>>,  <<a href="mailto:ricercatori.td.sci@sns.it">ricercatori.td.sci@sns.it</a>>, Borsisti <<a href="mailto:borsisti@sns.it">borsisti@sns.it</a>>, assegnisti.sci <<a href="mailto:assegnisti.sci@sns.it">assegnisti.sci@sns.it</a>>, phd.extra.sci <<a href="mailto:phd.extra.sci@sns.it">phd.extra.sci@sns.it</a>>, Perfezionandi Scienze <<a href="mailto:phd.sci@sns.it">phd.sci@sns.it</a>>, allievi.extra.sci <<a href="mailto:allievi.extra.sci@sns.it">allievi.extra.sci@sns.it</a>>, Studenti Scienze <<a href="mailto:allievi.sci@sns.it">allievi.sci@sns.it</a>>, Esterni Scienze in Convenzione <<a href="mailto:esterni_sci_inconvenzione@sns.it">esterni_sci_inconvenzione@sns.it</a>>, visiting.student <<a href="mailto:visiting.student@sns.it">visiting.student@sns.it</a>><br>Cc: Classi <<a href="mailto:classi@sns.it">classi@sns.it</a>>, Sito SNS <<a href="mailto:sitosns@sns.it">sitosns@sns.it</a>>, Portineria Carovana <<a href="mailto:portineria.carovana@sns.it">portineria.carovana@sns.it</a>><br></div><br><br><div dir="ltr"><br><div class="gmail_quote"><div dir="ltr"><div><div class="gmail_quote"><div style="word-wrap:break-word;line-break:after-white-space"><div><blockquote type="cite"><div><div dir="ltr"><div class="gmail_quote"><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div><div><div><blockquote type="cite"><div><div dir="ltr"><div><div><br></div><div class="gmail_quote"><div dir="ltr"><pre style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0cm 0cm 0.0001pt;font-size:10pt;font-family:"Courier New""><span style="font-size:16pt;font-family:"Times New Roman",serif"><br></span></pre><pre style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;margin:0cm 0cm 0.0001pt;font-size:10pt;font-family:"Courier New""><span style="font-size:16pt;font-family:"Times New Roman",serif">Colloqui della Classe di Scienze - Anno Accademico 2018/2019<br>
Mercoledì  15  maggio 2019<br>
<b>ore 14:00 </b></span></pre>

<h1 style="margin:0cm 0cm 0.0001pt;line-height:30.75pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;vertical-align:baseline;font-size:24pt;font-family:"Times New Roman",serif"><span style="font-size:16pt;font-weight:normal">Sala Stemmi</span></h1>

<h1 style="margin:0cm 0cm 0.0001pt;line-height:30.75pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;vertical-align:baseline;font-size:24pt;font-family:"Times New Roman",serif"><span style="font-size:16pt;font-weight:normal">Palazzo della Carovana</span></h1><h1 style="margin:0cm 0cm 0.0001pt;line-height:30.75pt;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;vertical-align:baseline;font-size:24pt"><font face="times new roman, serif"><span style="font-size:small">PLEASE TAKE NOTE OF THE UNUSUAL TIME 14:00</span>  <span style="font-size:16pt;font-weight:normal"><br>
</span><span style="font-size:16pt;letter-spacing:-0.75pt">Lee Roberts</span></font><span style="font-size:28pt;font-family:Arial,sans-serif;letter-spacing:-0.75pt;font-weight:normal;font-size:28pt;letter-spacing:-0.75pt"></span></h1><p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><i><span style="font-size:12pt;line-height:115%;font-family:"Times New Roman",serif;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">(Boston University</span></i><i><span style="font-size:12pt;line-height:115%;font-family:"Times New Roman",serif">)</span></i><i><span style="font-size:12pt;line-height:115%;font-family:Arial,sans-serif"></span></i></p><p class="MsoNormal" style="margin:0cm 0cm 0.0001pt;line-height:normal;background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial;font-size:11pt;font-family:Calibri,sans-serif"><span style="font-size:10.5pt;font-family:Arial,sans-serif"> </span></p><p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><b><span lang="EN-US" style="font-size:16pt;line-height:115%;font-family:"Times New Roman",serif">Titolo: “</span></b><b><span lang="EN-US" style="font-size:16pt;line-height:115%;font-family:"Times New Roman",serif">Exploring <i>Terra Incognita</i> with the World’s Largest
Penning Trap<span style="background-image:initial;background-position:initial;background-size:initial;background-repeat:initial;background-origin:initial;background-clip:initial">”</span></span></b></p><div style="margin:0cm 0cm 0.0001pt;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><b><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman",serif">Abstract:</span></b></div><div style="margin:0cm 0cm 0.0001pt;text-align:justify;line-height:91%;font-size:12pt;font-family:"Times New Roman",serif"><span lang="EN-US">The Standard Model provides a very
precise prediction of the muon’s magnetic anomaly  <i>a_µ </i>= (<i>g</i></span><i><span lang="EN-US" style="font-size:8pt;line-height:91%">µ </span></i><span lang="EN-US">- 2)/2, the deviation from 2 of the
gyromagnetic ratio <i>g_µ</i>. In his seminal 1926 paper,
P.A.M. Dirac predicted that for electrons <i>g_e </i>= 2, but
experiments then revealed that <i>g_e </i>was slightly larger than 2.
The reason was to be found in Quantum Mechanics, and the first radiative
correction to <i>g_e, </i>calculated by Julian Schwinger, explained
a deviation of order 0.1 %. Today, the Standard Model predicts the value of <i><span style="letter-spacing:-0.15pt">a_µ </span></i>to a precision of ± 0.3
parts per million (ppm).  Dedicated
experiments have measured <i>a</i>_μ
to ± 0.54 ppm precision. Therefore, precision measurements of the anomaly
provide a stringent <span style="letter-spacing:-0.15pt">test </span>of the Standard
Model’s completeness, since Nature knows about all forces that could
contribute to the muon’s magnetism, including those from New Physics that has
not yet been discovered. </span></div><p class="MsoNormal" style="margin:0cm 0cm 10pt;line-height:115%;font-size:11pt;font-family:Calibri,sans-serif"><span lang="EN-US" style="font-size:12pt;line-height:115%;font-family:"Times New Roman",serif">I will review the intellectual history that began with
the discovery of spin and the <i>g</i>-factor of the electron and its role on
the development of Modern Physics. Then I will focus on the measurements of the
muon magnetic anomaly, which include particle counting techniques, and nuclear
magnetic resonance (NMR) around the 45 m circumference of the ring to monitor
and measure the precision magnetic field.  A new experiment with a precision goal of ±
0.14 ppm is now in progress now at Fermilab, which should clarify whether or
not differences that have surfaced between theory and experiment are
statistically significant at the five standard deviation level.</span></p><div style="margin:0cm 0cm 0.0001pt;text-align:justify;line-height:normal;font-size:11pt;font-family:Calibri,sans-serif"><b><span lang="EN-US" style="font-size:12pt;font-family:"Times New Roman",serif"> </span></b></div><div><div dir="ltr" class="m_7377312123675215490m_1459788802468597694m_-4466682601135912316m_106651695752514681gmail-m_1945731509252758711m_2555785742799443062gmail_signature"><div dir="ltr"><div>Valeria Giuliani</div><div>Scuola Normale Superiore</div><div>Servizio alla Didattica e Allievi</div><div>tel. 050 509260</div><div>Piazza dei Cavalieri, 7</div><div>56126 Pisa</div><div>E-mail: <a href="mailto:valeria.giuliani@sns.it" target="_blank">valeria.giuliani@sns.it</a></div><div>E-mail: <a href="mailto:classi@sns.it" target="_blank">classi@sns.it</a></div></div></div></div></div>
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