{"id":224864,"date":"2021-04-12T13:14:34","date_gmt":"2021-04-12T10:14:34","guid":{"rendered":"https:\/\/en.buradabiliyorum.com\/did-we-just-discover-new-physics-these-theoretical-physicists-dont-think-so\/"},"modified":"2021-04-12T13:14:34","modified_gmt":"2021-04-12T10:14:34","slug":"did-we-just-discover-new-physics-these-theoretical-physicists-dont-think-so","status":"publish","type":"post","link":"https:\/\/buradabiliyorum.com\/en\/did-we-just-discover-new-physics-these-theoretical-physicists-dont-think-so\/","title":{"rendered":"#Did we just discover new physics? These theoretical physicists don\u2019t think so"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_89 counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6af0c46137600\" class=\"ez-toc-cssicon-toggle-label\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #dd3333;color:#dd3333\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #dd3333;color:#dd3333\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6af0c46137600\" checked aria-label=\"Toggle\" \/><nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/buradabiliyorum.com\/en\/did-we-just-discover-new-physics-these-theoretical-physicists-dont-think-so\/#The_muon_and_the_Standard_Model\" >The muon and the Standard Model<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/buradabiliyorum.com\/en\/did-we-just-discover-new-physics-these-theoretical-physicists-dont-think-so\/#A_magnetic_mystery\" >A magnetic mystery<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/buradabiliyorum.com\/en\/did-we-just-discover-new-physics-these-theoretical-physicists-dont-think-so\/#New_theories\" >New theories<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/buradabiliyorum.com\/en\/did-we-just-discover-new-physics-these-theoretical-physicists-dont-think-so\/#New_experiments\" >New experiments<\/a><\/li><\/ul><\/nav><\/div>\n<p>&#8220;<strong>#Did we just discover new physics? These theoretical physicists don\u2019t think so<\/strong>&#8221;<\/p>\n<div>When the results of an experiment don\u2019t match predictions made by the best theory of the day, something is off.<\/p>\n<p>Fifteen years ago, physicists at <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.bnl.gov\/world\/\">Brookhaven National Laboratory<\/a> discovered something perplexing. Muons \u2013 a type of subatomic particle \u2013 were moving in unexpected ways that didn\u2019t match theoretical predictions. Was the theory wrong? Was the experiment off? Or, tantalizingly, was this evidence of new physics?<\/p>\n<p>Physicists have been trying to solve this mystery every since.<\/p>\n<p>One group from <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/news.fnal.gov\/2021\/04\/first-results-from-fermilabs-muon-g-2-experiment-strengthen-evidence-of-new-physics\">Fermilab<\/a> tackled the experimental side and on April 7, 2021, released results <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.bnl.gov\/newsroom\/news.php?a=118760\">confirming the original measurement<\/a>. But my colleagues and I took a different <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/download-scripts-themes-apps\/\" data-internallinksmanager029f6b8e52c=\"9\" title=\"Download Scripts &amp; Themes &amp; Apps\" target=\"_blank\" rel=\"noopener\">app<\/a>roach.<\/p>\n<p><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/scholar.google.com\/citations?user=EDOpw0YAAAAJ&amp;hl=en&amp;oi=ao\">I am a theoretical physicist<\/a> and the spokesperson and one of two coordinators of the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"http:\/\/www.bmw.uni-wuppertal.de\/Home.html\">Budapest-Marseille-Wuppertal collaboration<\/a>. This is a large\u2013scale collaboration of physicists who have been trying to see if the older theoretical prediction was incorrect. We used a <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/doi.org\/10.1038\/s41586-021-03418-1\">new method<\/a> to calculate how muons interact with magnetic fields.<\/p>\n<p>My team\u2019s theoretical prediction is different from the original theory and matches both the old experimental evidence and the new Fermilab data. If our calculation is correct, it resolves the discrepancy between theory and experiment and would suggest that there is not an undiscovered force of nature.<\/p>\n<p><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/doi.org\/10.1038\/s41586-021-03418-1\">Our result was published in the journal Nature<\/a> on April 7, 2021, the same day as the new experimental results.<\/p>\n<figure class=\"align-center zoomable\">\n<figure class=\"post-image post-mediaBleed aligncenter\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/images.theconversation.com\/files\/394122\/original\/file-20210408-21-1mlac6i.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip\"><img loading=\"lazy\" decoding=\"async\" sizes=\"auto, (min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px\" alt=\"All of the particles and forces of the Standard Model of physics.\" width=\"600\" height=\"373\" class=\" lazy\" src=\"https:\/\/images.theconversation.com\/files\/394122\/original\/file-20210408-21-1mlac6i.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip\" data-lazy=\"true\" srcset=\"https:\/\/images.theconversation.com\/files\/394122\/original\/file-20210408-21-1mlac6i.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=373&amp;fit=crop&amp;dpr=1 600w, https:\/\/images.theconversation.com\/files\/394122\/original\/file-20210408-21-1mlac6i.png?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=373&amp;fit=crop&amp;dpr=2 1200w, https:\/\/images.theconversation.com\/files\/394122\/original\/file-20210408-21-1mlac6i.png?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=373&amp;fit=crop&amp;dpr=3 1800w, https:\/\/images.theconversation.com\/files\/394122\/original\/file-20210408-21-1mlac6i.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=469&amp;fit=crop&amp;dpr=1 754w, https:\/\/images.theconversation.com\/files\/394122\/original\/file-20210408-21-1mlac6i.png?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=469&amp;fit=crop&amp;dpr=2 1508w, https:\/\/images.theconversation.com\/files\/394122\/original\/file-20210408-21-1mlac6i.png?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=469&amp;fit=crop&amp;dpr=3 2262w\"\/><\/a><figcaption><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/thenextweb.com\/news\/#\" data-url=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Feditorial.thenextweb.com%2Fscience%2F2021%2F04%2F12%2Fdid-we-just-discover-new-physics-theoretical-physicists-dont-think-so-syndication%2F&amp;via=thenextweb&amp;related=thenextweb&amp;text=Check out this picture on: The Standard Model of physics is the most accurate theory of the universe to date. Credit: Cush\/Wikimedia Commons\" data-title=\"Share The Standard Model of physics is the most accurate theory of the universe to date. Credit: Cush\/Wikimedia Commons on Twitter\" data-width=\"685\" data-height=\"500\" class=\"post-image-share popitup\" title=\"Share The Standard Model of physics is the most accurate theory of the universe to date. Credit: Cush\/Wikimedia Commons on Twitter\"><i class=\"icon icon--inline icon--twitter--dark\"\/><\/a>The Standard Model of physics is the most accurate theory of the universe to date. Credit: Cush\/Wiki<a href=\"https:\/\/buradabiliyorum.com\/en\/category\/social-mediaa\/\" data-internallinksmanager029f6b8e52c=\"1\" title=\"Social Media\" target=\"_blank\" rel=\"noopener\">media<\/a> Commons<\/figcaption><\/figure><figcaption\/><\/p>\n<\/figure>\n<h2><span class=\"ez-toc-section\" id=\"The_muon_and_the_Standard_Model\"><\/span>The muon and the Standard Model<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>The muon is a heavier, unstable sister of the electron. Muons are all around us and are, for example, created when <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.radioactivity.eu.com\/site\/pages\/Cosmic_Muons.htm\">cosmic rays collide with particles in the Earth\u2019s atmosphere<\/a>. They are able to pass through matter, and researchers have used them to probe the inaccessible interiors of structures from <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/doi.org\/10.1063\/PT.3.1829\">giant volcanoes<\/a> to the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.nature.com\/news\/cosmic-ray-particles-reveal-secret-chamber-in-egypt-s-great-pyramid-1.22939\">Egyptian pyramids<\/a>.<\/p>\n<p>Muons, like electrons, have an electric charge and generate tiny magnetic fields. The strength and orientation of this magnetic field is called the magnetic moment.<\/p>\n<p><em>[Also read:\u00a0The imminent discovery of new forces of nature could change physics as we know it]<\/em><\/p>\n<p>Almost everything in the universe \u2013 from how atoms are built to how your cellphone works to how galaxies move \u2013 can be described by four interactions. You are probably familiar with the first two: gravity and electromagnetism. The third is the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/www.livescience.com\/49254-weak-force.html\">weak interaction<\/a>, which is responsible for radioactive decay. Last is the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/en.wikipedia.org\/wiki\/Strong_interaction\">strong interaction<\/a>, the force that holds the protons and neutrons in an atom\u2019s nucleus together. Physicists call this framework \u2013 minus gravity \u2013 the Standard Model of particle physics.<\/p>\n<p>All interactions of the Standard Model contribute to the muon\u2019s magnetic moment and each do so in multiple different ways. Physicists very precisely know how <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/doi.org\/10.1103\/PhysRevLett.109.111808\">electromagnetism<\/a> and the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/doi.org\/10.1103\/PhysRevLett.76.3267\">weak interaction<\/a> do so, but determining how the strong interaction contributes to the muon\u2019s magnetic field has proven to be incredibly hard to do.<\/p>\n<figure class=\"align-center zoomable\">\n<p><figure class=\"post-image post-mediaBleed aligncenter\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/images.theconversation.com\/files\/394123\/original\/file-20210408-15-3khioz.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip\"><img loading=\"lazy\" decoding=\"async\" sizes=\"auto, (min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px\" alt=\"Iron filings showing the magnetic field lines of a magnet.\" width=\"600\" height=\"403\" class=\" lazy\" src=\"https:\/\/images.theconversation.com\/files\/394123\/original\/file-20210408-15-3khioz.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip\" data-lazy=\"true\" srcset=\"https:\/\/images.theconversation.com\/files\/394123\/original\/file-20210408-15-3khioz.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=403&amp;fit=crop&amp;dpr=1 600w, https:\/\/images.theconversation.com\/files\/394123\/original\/file-20210408-15-3khioz.png?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=403&amp;fit=crop&amp;dpr=2 1200w, https:\/\/images.theconversation.com\/files\/394123\/original\/file-20210408-15-3khioz.png?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=403&amp;fit=crop&amp;dpr=3 1800w, https:\/\/images.theconversation.com\/files\/394123\/original\/file-20210408-15-3khioz.png?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=506&amp;fit=crop&amp;dpr=1 754w, https:\/\/images.theconversation.com\/files\/394123\/original\/file-20210408-15-3khioz.png?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=506&amp;fit=crop&amp;dpr=2 1508w, https:\/\/images.theconversation.com\/files\/394123\/original\/file-20210408-15-3khioz.png?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=506&amp;fit=crop&amp;dpr=3 2262w\"\/><\/a><figcaption><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/thenextweb.com\/news\/#\" data-url=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Feditorial.thenextweb.com%2Fscience%2F2021%2F04%2F12%2Fdid-we-just-discover-new-physics-theoretical-physicists-dont-think-so-syndication%2F&amp;via=thenextweb&amp;related=thenextweb&amp;text=Check out this picture on: The magnetic field of the muon has proven incredibly hard to predict. Credit: Newton Henry Black\/Wikimedia Commons\" data-title=\"Share The magnetic field of the muon has proven incredibly hard to predict. Credit: Newton Henry Black\/Wikimedia Commons on Twitter\" data-width=\"685\" data-height=\"500\" class=\"post-image-share popitup\" title=\"Share The magnetic field of the muon has proven incredibly hard to predict. Credit: Newton Henry Black\/Wikimedia Commons on Twitter\"><i class=\"icon icon--inline icon--twitter--dark\"\/><\/a>The magnetic field of the muon has proven incredibly hard to predict. Credit: Newton Henry Black\/Wikimedia Commons<\/figcaption><\/figure><figcaption\/><\/p>\n<\/figure>\n<h2><span class=\"ez-toc-section\" id=\"A_magnetic_mystery\"><\/span>A magnetic mystery<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Of all of the effects that the strong interaction has on the muon\u2019s magnetic moment, the largest and also hardest to calculate with the necessary precision is called the Leading Order Hadronic Vacuum Polarization.<\/p>\n<p>In the past, to calculate this effect, physicists used a mixed theoretical\u2013experimental approach. They would collect data from collisions between electrons and positrons \u2013 the opposite of electrons \u2013 and use it to calculate the strong interaction\u2019s contribution to the muon\u2019s magnetic moment. Physicists have been using this approach to <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/doi.org\/10.1103\/PhysRev.168.1620\">further refine the estimate for decades<\/a>. The latest results are from 2020 and produced a <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/doi.org\/10.1140\/epjc\/s10052-020-7792-2\">very precise estimate<\/a>.<\/p>\n<p>This calculation of the magnetic moment is what experimental physicists have been testing for decades. Until April 7, 2021, the most precise experimental result was 15 years old. For this measurement, at Brookhaven National Laboratory, researchers created muons in a particle accelerator and then watched how they moved through a magnetic field using a giant, 50-foot-wide (15-meter) electromagnet. By measuring how muons moved and decayed, they were able to directly measure the muon\u2019s magnetic moment. It came as quite the surprise when Broohaven\u2019s 2006 <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/doi.org\/10.1103\/PhysRevD.73.072003\">direct measurement of the muon\u2019s magnetic moment<\/a> was larger than it should have been according to theory.<\/p>\n<p>Faced with this discrepancy, there were three options: Either the theoretical prediction was incorrect, the experiment was incorrect or, as many physicists believed, this was a sign of an unknown force of nature.<\/p>\n<p>So which was it?<\/p>\n<h2><span class=\"ez-toc-section\" id=\"New_theories\"><\/span>New theories<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>My colleagues and I chose to pursue the first option: The theory might be off in some way. So, we decided to try to find a better way to calculate the prediction. Our team of physicists took the most basic underlying equations of the strong interaction, put the equations on a space-time grid, and solved as many of them as possible at once.<\/p>\n<p>The technique is kind of like making a weather forecast. As commercial aircrafts fly their routes, they measure pressure, temperature, and the speed of wind at given points on Earth. Similarly, we placed the strong interaction equation on a space-time grid. The weather data at individual points are then put into a supercomputer that combines all of the data to predict the evolution of the weather. Our team put the strong interaction forces on a grid and looked for the evolution of these fields. The more planes collecting data, the better the prediction. In this metaphor, we used billions of airplanes to calculate the most precise magnetic moment we could using millions of computer processing hours at multiple supercomputer centers in Europe.<\/p>\n<p>Our new approach produces an estimate of the strength of the muon\u2019s magnetic field that closely matches the experimental value measured by the Brookhaven scientists. It essentially closes the gap between theory and experimental measurements and, if true, confirms the Standard Model that has guided particle physics for decades.<\/p>\n<figure class=\"align-center zoomable\">\n<p><figure class=\"post-image post-mediaBleed aligncenter\"><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/images.theconversation.com\/files\/394125\/original\/file-20210408-13-eebv45.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=1000&amp;fit=clip\"><img loading=\"lazy\" decoding=\"async\" sizes=\"auto, (min-width: 1466px) 754px, (max-width: 599px) 100vw, (min-width: 600px) 600px, 237px\" alt=\"A large blue doughnut\u2013shaped magnet used to measure muons.\" width=\"600\" height=\"401\" class=\" lazy\" src=\"https:\/\/images.theconversation.com\/files\/394125\/original\/file-20210408-13-eebv45.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;fit=clip\" data-lazy=\"true\" srcset=\"https:\/\/images.theconversation.com\/files\/394125\/original\/file-20210408-13-eebv45.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=600&amp;h=401&amp;fit=crop&amp;dpr=1 600w, https:\/\/images.theconversation.com\/files\/394125\/original\/file-20210408-13-eebv45.jpeg?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=600&amp;h=401&amp;fit=crop&amp;dpr=2 1200w, https:\/\/images.theconversation.com\/files\/394125\/original\/file-20210408-13-eebv45.jpeg?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=600&amp;h=401&amp;fit=crop&amp;dpr=3 1800w, https:\/\/images.theconversation.com\/files\/394125\/original\/file-20210408-13-eebv45.jpeg?ixlib=rb-1.1.0&amp;q=45&amp;auto=format&amp;w=754&amp;h=503&amp;fit=crop&amp;dpr=1 754w, https:\/\/images.theconversation.com\/files\/394125\/original\/file-20210408-13-eebv45.jpeg?ixlib=rb-1.1.0&amp;q=30&amp;auto=format&amp;w=754&amp;h=503&amp;fit=crop&amp;dpr=2 1508w, https:\/\/images.theconversation.com\/files\/394125\/original\/file-20210408-13-eebv45.jpeg?ixlib=rb-1.1.0&amp;q=15&amp;auto=format&amp;w=754&amp;h=503&amp;fit=crop&amp;dpr=3 2262w\"\/><\/a><figcaption><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/thenextweb.com\/news\/#\" data-url=\"https:\/\/twitter.com\/intent\/tweet?url=https%3A%2F%2Feditorial.thenextweb.com%2Fscience%2F2021%2F04%2F12%2Fdid-we-just-discover-new-physics-theoretical-physicists-dont-think-so-syndication%2F&amp;via=thenextweb&amp;related=thenextweb&amp;text=Check out this picture on: The Fermilab experiment, using the same magnet from Brookhaven, measured an almost identical magnetic moment for the muon. Credit: Reidar Hahn\/Fermilab, CC BY\" data-title=\"Share The Fermilab experiment, using the same magnet from Brookhaven, measured an almost identical magnetic moment for the muon. Credit: Reidar Hahn\/Fermilab, CC BY on Twitter\" data-width=\"685\" data-height=\"500\" class=\"post-image-share popitup\" title=\"Share The Fermilab experiment, using the same magnet from Brookhaven, measured an almost identical magnetic moment for the muon. Credit: Reidar Hahn\/Fermilab, CC BY on Twitter\"><i class=\"icon icon--inline icon--twitter--dark\"\/><\/a>The Fermilab experiment, using the same magnet from Brookhaven, measured an almost identical magnetic moment for the muon. Credit: Reidar Hahn\/Fermilab, CC BY<\/figcaption><\/figure><figcaption\/><\/p>\n<\/figure>\n<h2><span class=\"ez-toc-section\" id=\"New_experiments\"><\/span>New experiments<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>But my colleagues and I have not been the only ones pursuing this mystery. Other scientists, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/news.fnal.gov\/2021\/04\/first-results-from-fermilabs-muon-g-2-experiment-strengthen-evidence-of-new-physics\">like the ones at Fermilab<\/a>, a particle accelerator close to Chicago, have chosen to test the second option: that the experiment was off.<\/p>\n<p>At Fermilab, physicists have been continuing the experiment that was done at Brookhaven to get a more precise experimental measurement of the muon\u2019s magnetic moment. They used a more intense muon source that gave them a more precise result. It matched the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/news.fnal.gov\/2021\/04\/first-results-from-fermilabs-muon-g-2-experiment-strengthen-evidence-of-new-physics\">old measurement almost perfectly<\/a>.<\/p>\n<p>The Fermilab results strongly suggest that the experimental measurements are correct. The new theoretical prediction made by my colleagues and me matches these experimental results. While it may have been exciting to discover hints of new physics, our new theory seems to say that this time, the Standard Model is holding up.<\/p>\n<p>One mystery remains though: the gap between the original prediction and our new theoretical result. My team and I believe that ours is correct, but our result is the very first of its sort. As always in <a href=\"https:\/\/buradabiliyorum.com\/en\/category\/sciencee\/\" data-internallinksmanager029f6b8e52c=\"5\" title=\"Science\" target=\"_blank\" rel=\"noopener\">science<\/a>, other calculations need to be done to confirm or refute it.<!-- End of code. If you don't see any code above, please get new code from the Advanced tab after you click the republish button. The page counter does not collect any personal data. More info: https:\/\/theconversation.com\/republishing-guidelines --><\/p>\n<p><em>This article by\u00a0<a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/profiles\/zoltan-fodor-1220596\">Zoltan Fodor<\/a>, Professor of Physics, <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/institutions\/penn-state-1258\">Penn State<\/a>, is republished from <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\">The Conversation<\/a> under a Creative Commons license. Read the <a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/theconversation.com\/proof-of-new-physics-from-the-muons-magnetic-moment-maybe-not-according-to-a-new-theoretical-calculation-157829\">original article<\/a>.<\/em><\/p>\n<\/div>\n<p><script async src=\"\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script><script data-src=\"https:\/\/connect.facebook.net\/en_US\/sdk.js#xfbml=1&amp;appId=378011798897423&amp;version=v2.6\" id=\"socialSrcFacebook\" type=\"text\/template\"><\/script><\/p>\n<blockquote><p><strong><span style=\"color: #ff6600;\">If you liked the article, do not forget to share it with your friends. Follow us on\u00a0<span style=\"color: #ff0000;\"><a style=\"color: #ff0000;\" href=\"https:\/\/news.google.com\/publications\/CAAqBwgKMLG0nwswvr63Aw\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">Google News<\/a><\/span>\u00a0too, click on the star and choose us from your favorites.<\/span><\/strong><\/p><\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\">For forums sites go to <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/forum.buradabiliyorum.com\/\" target=\"_blank\" rel=\"noopener\">Forum.BuradaBiliyorum.Com<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<blockquote>\n<p style=\"text-align: center;\"><strong>If you want to read more like this article, you can visit our <span style=\"color: #ff9900;\"><a style=\"color: #ff9900;\" href=\"https:\/\/en.buradabiliyorum.com\/technology\/\" target=\"_blank\" rel=\"noopener\">Technology category.<\/a><\/span><\/strong><\/p>\n<\/blockquote>\n<p><span style=\"color: black;\"><a style=\"color: #ff9900;\" href=\"https:\/\/thenextweb.com\/news\/did-we-just-discover-new-physics-theoretical-physicists-dont-think-so-syndication\" target=\"_blank\" rel=\"noopener\">Source<\/a><\/span><\/p>\n","protected":false},"excerpt":{"rendered":"<p>&#8220;#Did we just discover new physics? These theoretical physicists don\u2019t think so&#8221; When the results of an experiment don\u2019t match predictions made by the best theory of the day, something is off. Fifteen years ago, physicists at Brookhaven National Laboratory discovered something perplexing. Muons \u2013 a type of subatomic particle \u2013 were moving in unexpected&#8230;<\/p>\n","protected":false},"author":1,"featured_media":224865,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"fifu_image_url":"https:\/\/img-cdn.tnwcdn.com\/image\/tnw?filter_last=1&fit=1280,640&url=https:\/\/cdn0.tnwcdn.com\/wp-content\/blogs.dir\/1\/files\/2021\/04\/muon.jpg&signature=6342f78f9ba3ec10021a5d2a692d822d","fifu_image_alt":"","footnotes":""},"categories":[18],"tags":[],"class_list":["post-224864","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-technology"],"_links":{"self":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/224864","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/comments?post=224864"}],"version-history":[{"count":0,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/posts\/224864\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media\/224865"}],"wp:attachment":[{"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/media?parent=224864"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/categories?post=224864"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/buradabiliyorum.com\/en\/wp-json\/wp\/v2\/tags?post=224864"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}