Cosmic Rays : Part 3 : Cosmogenic Muons and Special Relativity

<p><strong>The Field Guide to Particle Physics <br></strong><a href="https://pasayten.org/the-field-guide-to-particle-physics">https://pasayten.org/the-field-guide-to-particle-physics</a><br>©2021 The Pasayten Institute <a href="https://creativecommons.org/licenses/by-sa/4.0/">cc by-sa-4.0</a><br>The definitive resource for all data in particle physics is the Particle Data Group: <a href="https://pdg.lbl.gov/">https://pdg.lbl.gov</a>.</p><p>The Pasayten Institute is on a mission to build and share physics knowledge, without barriers! <a href="http://pasayten.org/heysean">Get in touch</a>.</p><p>The Particle Data Group's write up on cosmic rays. See Figure 29.8 for a representation of the "ankle" feature in the spectrum.<br><a href="https://pdg.lbl.gov/2019/reviews/rpp2019-rev-cosmic-rays.pdf">https://pdg.lbl.gov/2019/reviews/rpp2019-rev-cosmic-rays.pdf</a></p><p>Another representation of the power laws can be found in Professor Peter Gorham's Coursework on Ultra High Energy Cosmic Rays: <a href="http://www2.hawaii.edu/~gorham/UHECR.html">http://www2.hawaii.edu/~gorham/UHECR.html</a></p><p><a href="https://www.quantamagazine.org/authors/natalie/">Natalie Wolchover</a> has written two great articles in Quanta on Cosmic Rays, both which talk about what might accelerate these particles.<br><a href="https://www.quantamagazine.org/ultrahigh-energy-cosmic-rays-traced-to-hotspot-20150514/">The Particle That Broke a Cosmic Speed Limit</a> and <a href="https://www.quantamagazine.org/cosmic-map-of-ultrahigh-energy-particles-points-to-long-hidden-treasures-20210427/">Cosmic Map of Ultrahigh-Energy Particles Points to Long-Hidden Treasures</a></p><p><br>MIT's GameLab has a <a href="http://gamelab.mit.edu/games/a-slower-speed-of-light/">fun example</a> of how Special Relativity works. See also <a href="https://www.zenker.se/Books/gamow.shtml">Gamow's popular science book on Special Relativity</a>. </p><p><a href="https://scoollab.web.cern.ch/cloud-chamber">CERN's DIY Cloud Chamber Design</a><br><a href="https://www.yo