<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Hi All,<br>A reminder that today (wednesday 22nd) at 3:30 in the MOB theory room we will have our fortnightly journal/snack club.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Nir Nevo Dinur</b> <span dir="ltr"><<a href="mailto:nnevodinur@triumf.ca">nnevodinur@triumf.ca</a>></span><br>Date: 20 November 2017 at 12:24<br>Subject: Isac-journal-club this Wed. Nov. 22<br>To: <a href="mailto:Isac-Journal-Club@trmail.triumf.ca">Isac-Journal-Club@trmail.triumf.ca</a><br>Cc: journalclub <<a href="mailto:journalclub@triumf.ca">journalclub@triumf.ca</a>><br><br><br>
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<p><font size="+1">Hi,</font></p>
<p><font size="+1">The paper (attached) for the coming ISAC journal
club is <b>The Rydberg constant and proton size from atomic
hydrogen</b></font></p>
<p><font size="+1">[</font><font size="+1"><span><a href="https://www.ncbi.nlm.nih.gov/pubmed/28983046#" title="Science (New York, N.Y.)." target="_blank">Science.</a></span> 2017 Oct
6;358(6359):79-85. doi: 10.1126/science.aah6677]</font></p>
<p><font size="+1">You can also use the comment on it from the same
issue (also attached)<br>
</font></p>
<p><font size="+1"><br>
</font></p>
<p><font size="+1">Questions (from easiest to hardest <span class="gmail-m_2041313251447417559moz-smiley-s1"><span>:-)</span></span> ):</font></p>
<p><font size="+1">1) What is the proton radius (puzzle) ?</font></p>
<p><font size="+1">2) Why do you (usually) need two measurements to
determine it, and why is </font><font size="+1"><font size="+1">the
1S-2S used</font>?</font></p>
<p><font size="+1">3) What are the main experimental challenges in
the precision goal of this measurement?<br>
</font></p>
<p><font size="+1">4) How are they overcome?</font></p>
<p><font size="+1">5) Is the use of sophisticated simulations no
longer needed?</font></p>
<p><font size="+1">6) Are there similar phenomena that might affect
measurements of nuclear spectra?</font></p>
<p><font size="+1">7) So what is the proton radius after all?<br>
</font></p>
<p><font size="+1"><br>
</font></p>
<font size="+1">Best,</font><br>
<font size="+1">Nir<br>
</font>
<p><br>
</p>
<pre class="gmail-m_2041313251447417559moz-signature" cols="72">Dr. Nir Nevo Dinur
Postdoctoral Fellow
Theory Group
Physical Sciences Div.
TRIUMF
4004 Wesbrook Mall,
Vancouver, BC V6T 2A3, Canada
<a href="tel:(604)%20222-1047" value="+16042221047" target="_blank">+1-604-222-1047x6445</a></pre></div></div></div>