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X17 Particle

162 pointsby miobrienover 5 years ago

9 comments

andyljonesover 5 years ago
There is some skepticism around this to say the least[1]. The core of it is that this group has found new bosons twice before:<p><i>The Atomki group has produced three previous papers on their beryllium-8 experiments — conference proceedings in 2008, 2012 and 2015. The first paper claimed evidence of a new boson of mass 12 MeV, and the second described an anomaly corresponding to a 13.45-MeV boson. (The third was a preliminary version of the Physical Review Letters paper.) The first two bumps have disappeared in the latest data, collected with an improved experimental setup. “The new claim now is [a] boson with a mass of 16.7 MeV,” Naviliat-Cuncic said. “But they don’t say anything about what went wrong in their previous claims and why we should not take those claims seriously.”</i><p>[1] <a href="https:&#x2F;&#x2F;www.quantamagazine.org&#x2F;new-boson-claim-faces-scrutiny-20160607&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.quantamagazine.org&#x2F;new-boson-claim-faces-scrutin...</a>
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knzhouover 5 years ago
It&#x27;s important to keep in mind that there are <i>always</i> plenty of outstanding experimental anomalies in physics. At the moment, this is one of ~40 roughly equally credible hints towards new physics, and it&#x27;s more likely than not that all of those hints will fade away over time. That isn&#x27;t anybody&#x27;s fault either: it has always been like this, and it happens because experiments are difficult and subtle.<p>Personally, I still find this extremely exciting, even though history tells us it has less than a 1% chance of panning out. A 1% chance of revolution is still meaningful. But don&#x27;t be too surprised if we land in the 99%.
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beezleover 5 years ago
Find it really hard to believe they find something at 17 MeV that was never seen at Tevatron, RHIC, CEBAF, HERA, LEP, SLAC, etc.
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RandomTiskover 5 years ago
I find the E8 lattice incredibly interesting, if for no other reason to find out if it&#x27;s truly representative of particle physics. It predicts more particles we haven&#x27;t observed yet.<p>[0] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;An_Exceptionally_Simple_Theory_of_Everything" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;An_Exceptionally_Simple_Theory...</a> [1] <a href="https:&#x2F;&#x2F;science.howstuffworks.com&#x2F;science-vs-myth&#x2F;everyday-myths&#x2F;theory-of-everything2.htm" rel="nofollow">https:&#x2F;&#x2F;science.howstuffworks.com&#x2F;science-vs-myth&#x2F;everyday-m...</a>
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dangover 5 years ago
Related thread: <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=21616381" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=21616381</a>
isoprophlexover 5 years ago
Someone knowledgeable, please tell us why this is just runaway science journalism before we get too excited!<p>This is potentially the most groundbreaking stuff in decades, right?
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mo-1over 5 years ago
What, you say&gt;<p>Nobody should argue that advancements haven&#x27;t been made since 1988, but nobody&#x27;s manufacturing organic human organs yet --- chemical pieces of: probably.
2bitencryptionover 5 years ago
could someone explain something--<p>I have a faint understanding of the &quot;Standard Model&quot; of physics, which lays out a pattern of particles and forces that has so far held up to experimentation i.e. the Higgs boson fit neatly into the model, exactly where the model predicted it would go.<p>The standard model predicted the Higgs, and the Higgs was found exactly how the model predicted, right? But I&#x27;ve never heard of this X17 particle before. Is this something the standard model has predicted? Does it go against the standard model, strengthen it, or neither?
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make3over 5 years ago
this is extremely exciting. makes me hope that we will see a unified theory of physics in our lifetime
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