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<div>Dear All, <br>
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<div> Please see the attached announcement about seminar by David Kaiser in September. </div>
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<div>With Regards,</div>
<div>- Swagat </div>
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<font><font color="#444444"><span style="font-size: 10pt; line-height: normal;"><span style="line-height: normal; font-size: 10pt;"><span style="line-height: normal;"><b>Swagat Saurav Mishra</b></span></span></span></font><font color="#222222"><span style="font-size: 10pt; line-height: normal;">,</span></font></font></p>
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<span style="font-size: 10pt; line-height: normal;"></span><span style="font-size:12pt; line-height:normal"></span><font color="#20124d"><span style="font-size: 10pt; line-height: normal;">Postdoctoral Research Associate</span></font></p>
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<span style="font-size: 10pt; line-height: normal;"></span><font color="#20124d"><span style="font-size: 10pt; line-height: normal;"></span><span style="font-size:11pt; line-height:normal"><br>
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<span style="font-size:12pt; line-height:normal"></span><font color="#20124d"><span style="font-size: 10pt; line-height: normal;">Particle Cosmology Group, </span></font></p>
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<span style="font-size: 10pt; line-height: normal;"></span><span style="font-size:12pt; line-height:normal"></span><font color="#20124d"><span style="font-size: 10pt; line-height: normal;">Centre for Astronomy and Particle Theory,</span></font></p>
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<span style="font-size: 10pt; line-height: normal;"></span><span style="font-size:12pt; line-height:normal"></span><font color="#20124d"><span style="font-size: 10pt; line-height: normal;">University of Nottingham, Nottingham NG7 2RD, UK.</span></font></p>
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<span style="font-size: 10pt; line-height: normal;"></span><span style="font-size:12pt; line-height:normal"></span><font color="#000000"><span style="font-size: 10pt; line-height: normal;">Website</span></font><font color="#20124d"><span style="font-size: 10pt; line-height: normal;">: </span><a href="https://swagatam18.wordpress.com/" target="_blank" style="color:rgb(17,85,204)"><span style="font-size: 10pt; line-height: normal;">https://swagatam18.wordpress.com/</span></a><span style="font-size: 10pt; line-height: normal;"> </span></font></p>
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<span style="font-size: 10pt; line-height: normal;"></span><font size="3"><span style="font-size: 12pt; line-height: normal;"></span></font><font color="#000000"><span style="font-size: 10pt; line-height: normal;">Research Link</span></font><font color="#20124d"><span style="font-size: 10pt; line-height: normal;">:</span><a href="https://inspirehep.net/authors/1517353" target="_blank" style="color: rgb(17, 85, 204);"><span style="font-size: 10pt; line-height: normal;">https://inspirehep.net/authors/1517353</span></a></font></p>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> NCOG-people <ncog-people-bounces@lists.nottingham.ac.uk> on behalf of Patrik Svancara (staff) <pmzps@exmail.nottingham.ac.uk><br>
<b>Sent:</b> 09 August 2024 09:08<br>
<b>To:</b> Silke Weinfurtner (staff) <pmzscw@exmail.nottingham.ac.uk>; Jorma Louko (staff) <pmzjmtl@exmail.nottingham.ac.uk>; O365-Gravity Laboratory <o365-gravitylaboratory@UniofNottm.onmicrosoft.com>; ncog-people@nottingham.ac.uk <ncog-people@nottingham.ac.uk>;
Anastasios Avgoustidis (staff) <ppzaa3@exmail.nottingham.ac.uk><br>
<b>Subject:</b> [Ncog-people] Seminar by David Kaiser (MIT)<br>
<b>When:</b> 13 September 2024 11:00-12:00.<br>
<b>Where:</b> A17 Maths</font>
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Dear all</div>
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<b>David Kaiser </b>from MIT is visiting our group on 12 and 13 September. He kindly agreed to give a seminar talk, which will take place on
<b>Friday 13 September 2024 at 11 am in room A17 in Maths</b>. The title and abstract od David's talk are below:<br>
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<b>Primordial Black Holes as Dark Matter: Production Mechanisms and Detection Strategies</b></div>
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For fifty years, physicists have been stymied by the puzzle of dark matter. From the motion of enormous clusters of galaxies to the rate at which individual galaxies spin, decades of careful measurements have indicated that all the visible matter astronomers
can observer contributes a tiny fraction to the total mass contained within the observable universe. Many hypothetical new particles have been proposed, which might play the role of dark matter, from weakly interacting massive particles (WIMPs) to ultralight
particles such as axions. Yet after decades of meticulous experiments, no clear evidence of any such particle has turned up. In recent years, many physicists and cosmologists have returned to a different idea: what if all of dark matter consists of ordinary
matter locked up within black holes, which could have formed during the earliest moments in cosmic history? Theorists have identified several plausible mechanisms by which a population of such primordial black holes could have formed, and recent observations
have constrained — but not eliminated — the range of masses within which primordial black holes could constitute all of dark matter while remaining consistent with various observations. More recently, several groups around the world (including my own) have
proposed new tests that could yield evidence that primordial black holes really do exist and contribute to the dark matter abundance. Based on
<a href="https://arxiv.org/abs/2303.02168" target="_blank" id="OWAb4622ef0-7d2a-56a7-1e02-c1d84f7a3f93" class="x_OWAAutoLink" rel="noopener noreferrer" data-auth="NotApplicable" data-linkindex="0" style="margin:0px">
https://arxiv.org/abs/2303.02168</a> , <a href="https://arxiv.org/abs/2310.16877" target="_blank" id="OWA54531c53-3703-5a91-cbc2-7d10e0688617" class="x_OWAAutoLink" rel="noopener noreferrer" data-auth="NotApplicable" data-linkindex="1" style="margin:0px">
https://arxiv.org/abs/2310.16877</a> , and <a href="https://arxiv.org/abs/2312.17217" target="_blank" id="OWA7a3f5698-591f-5d98-1c9e-6a0e6df8d2bc" class="x_OWAAutoLink" rel="noopener noreferrer" data-auth="NotApplicable" data-linkindex="2" style="margin:0px">
https://arxiv.org/abs/2312.17217</a>.</div>
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Best regards</div>
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Patrik</div>
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