<div dir="ltr"><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Hello All,<br>The first journal (& snack club) of the year is this week.<br>Usual time place, Wednesday 3:30pm MOB Theory Room.</div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small">Please forward this to your new students who may not have signed up to the list yet.<br>Lars Martin will be presenting this week's papers and guiding the discussion.<br>As always, reading the paper is warmly encouraged but not required.<br></div><div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small"><br></div><div class="gmail_default"><font face="arial, helvetica, sans-serif"><a href="https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.119.061101">https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.119.061101</a></font><br></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"><div class="gmail_default">Questions to consider for the paper:</div><div class="gmail_default">1. What is this r-process problem they're trying to address?</div><div class="gmail_default">2. Do we think the primordial black holes their theory requires actually exist?</div><div class="gmail_default">3. If they do, is there anything that would prevent the process they describe from happening?</div><div class="gmail_default">4. In light of the recent observation of a neutron star collision, is this explanation still "needed"?<div class="gmail_default" style="font-family:arial,helvetica,sans-serif;font-size:small;display:inline">​_)​</div></div>
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