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<p class="MsoNormal">Hi everyone,</p>
<p class="MsoNormal">An interesting item from the theorists/phenomenologists.</p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">-- Miriam</p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal" style="border:none;padding:0cm"><b>From: </b><a href="mailto:david.r.curtin@gmail.com">David Curtin</a><br>
<b>Sent: </b>February 8, 2017 8:15 PM<br>
<b>To: </b><a href="mailto:j.beacham@cern.ch">James Beacham</a><br>
<b>Cc: </b><a href="mailto:wouterh@nikhef.nl">Wouter Hulsbergen</a>; <a href="mailto:philip.james.ilten@cern.ch">
Philip James Ilten</a>; <a href="mailto:xabier.cid.vidal@cern.ch">Xabier Cid Vidal</a>;
<a href="mailto:Albert.de.Roeck@cern.ch">Albert De Roeck</a>; <a href="mailto:ted.ritchie.kolberg@cern.ch">
Ted Ritchie Kolberg</a>; <a href="mailto:Stefano.Giagu@cern.ch">Stefano Giagu</a>;
<a href="mailto:cristiano.alpigiani@cern.ch">Cristiano Alpigiani</a>; <a href="mailto:Sascha.Mehlhase@cern.ch">
Sascha Mehlhase</a>; <a href="mailto:emma.torro.pastor@cern.ch">Emma Torro Pastor</a>;
<a href="mailto:drandyhaas@gmail.com">Andrew Haas</a>; <a href="mailto:jaevans@ucdavis.edu">
jaevans@ucdavis.edu</a>; <a href="mailto:jshelton137@gmail.com">Julia Shelton</a>;
<a href="mailto:Michelangelo.Mangano@cern.ch">Michelangelo Mangano</a>; <a href="mailto:mjrm@physics.umass.edu">
Michael Ramsey-Musolf</a>; <a href="mailto:Simone.Amoroso@cern.ch">Simone Amoroso</a>;
<a href="mailto:Laura.Jeanty@cern.ch">Laura Jeanty</a>; <a href="mailto:gabriel.facini@cern.ch">
Gabriel John Facini</a>; <a href="mailto:klaus.moenig@desy.de">Klaus Monig</a>; <a href="mailto:till.eifert@cern.ch">
Till Eifert</a>; <a href="mailto:Iacopo.Vivarelli@cern.ch">Iacopo Vivarelli</a>; <a href="mailto:heather.russell@cern.ch">
Heather Russell</a>; <a href="mailto:rachel.rosten@cern.ch">Rachel Christine Rosten</a>;
<a href="mailto:christian.ohm@cern.ch">Christian Ohm</a>; <a href="mailto:revital.kopeliansky@cern.ch">
Revital Kopeliansky</a>; <a href="mailto:lantone@gmail.com">Jamie Antonelli</a>; <a href="mailto:juliette.alimena@cern.ch">
Juliette Alimena</a>; <a href="mailto:Koji.Terashi@cern.ch">Koji Terashi</a>; <a href="mailto:m.diamond@mail.utoronto.ca">
Miriam Diamond</a>; <a href="mailto:Monica.Verducci@cern.ch">Monica Verducci</a>;
<a href="mailto:devin.g.walker@dartmouth.edu">devin.g.walker@dartmouth.edu</a>; <a href="mailto:danchus@gmail.com">
danchus@gmail.com</a>; <a href="mailto:anelson@phys.washington.edu">Ann Nelson</a>;
<a href="mailto:lubatti@u.washington.edu">Henry Lubatti</a>; <a href="mailto:gwatts@uw.edu">
Gordon Watts</a>; <a href="mailto:Andrea.Coccaro@cern.ch">Andrea Coccaro</a>; <a href="mailto:bshuve@slac.stanford.edu">
bshuve@slac.stanford.edu</a><br>
<b>Subject: </b>Physics Today article on Hidden Sectors and Long-Lived Particles on the arXiv</p>
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<div class="gmail_extra">
<div class="gmail_extra">Dear fellow LHC-LLP enthusiasts,</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">Raman Sundrum and I wrote a general physics level overview article about theories with hidden sectors, how they could explain fundamental mysteries like the Hierarchy Problem, Baryogenesis or Dark Matter, and how they motivate searches
for long-lived particles at the Large Hadron Collider and elsewhere. We also explain how the search for neutral particles with very long lifetimes requires an external detector, like our recent MATHUSLA proposal for the HL-LHC. </div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">This is intended for publication in Physics Today, but to make it available sooner, we got permission from the editor to upload the draft to the arxiv.</div>
<div class="gmail_extra"><a href="https://arxiv.org/abs/1702.02524">https://arxiv.org/abs/1702.02524</a></div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">We hope that this article can be read by anyone with a physics background, allowing them to understand the big picture of why hidden sectors and long-lived particles are highly motivated and important to search for at colliders. </div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">It should also be an easy read for physicists working in any area of high energy theory or experiment, allowing them to get a quick overview of the subject. </div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">Of course, the format of such an article (and the small number of allowed references) means we cannot go over everything or cite everyone. Nevertheless, it was our hope to communicate the right “moral” of the story, and that this will
be useful. </div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">cheers,</div>
<div class="gmail_extra"><br>
</div>
<div class="gmail_extra">David</div>
<div><br>
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