#muon — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #muon, aggregated by home.social.
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#Physicists think they’ve solved the #muon mystery
Results dash hopes for a fifth force but provide very precise proof of the #StandardModel of #particlephysics and quantum field theory. According to a paper published in the journal Nature, the discrepancy is due to a calculation fluke, not exciting new #physics, so the Standard Model of particle physics is still holding strong.
https://arstechnica.com/science/2026/04/physicists-think-theyve-solved-the-muon-mystery/ -
#Physicists think they’ve solved the #muon mystery
Results dash hopes for a fifth force but provide very precise proof of the #StandardModel of #particlephysics and quantum field theory. According to a paper published in the journal Nature, the discrepancy is due to a calculation fluke, not exciting new #physics, so the Standard Model of particle physics is still holding strong.
https://arstechnica.com/science/2026/04/physicists-think-theyve-solved-the-muon-mystery/ -
Геометрия превосходства: Почему DeepSeek-V4 и Moonshot AI убили AdamW, и как оптимизатор Muon меняет физику обучения Долги...
#оптимизатор #adam #muon #оптимизатор #нейронные #сети #deepseek #kimi-k2.5
Origin | Interest | Match -
Muon Magnetic Moment Matches Model, Making Major Malaise
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Muon Magnetic Moment Matches Model, Making Major Malaise
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#Muon g-2 Experiment Pioneers Win #BreakthroughPrize in Fundamental #Physics | CERN
https://home.cern/news/press-release/cern/muon-g-2-experiment-pioneers-win-breakthrough-prize-fundamental-physicsCongratulations! This is one of the most difficult measurements that can be undertaken.
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#Muon g-2 Experiment Pioneers Win #BreakthroughPrize in Fundamental #Physics | CERN
https://home.cern/news/press-release/cern/muon-g-2-experiment-pioneers-win-breakthrough-prize-fundamental-physicsCongratulations! This is one of the most difficult measurements that can be undertaken.
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Wayward: Transmission @ F8 1192 Folsom - 16 Apr feat. Muon, OGAN, Friedländer + more
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i have added a #muon build to #pkgconf CI. the goal of this is to allow us to begin thinking about deprecating the autotools-based build system.
this won't happen until next year, most likely, but muon is sufficiently complete at this point that i think it solves the bootstrapping problem enough that we can start thinking about getting rid of the autotools stuff, probably in pkgconf 3.1 or so.
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i have added a #muon build to #pkgconf CI. the goal of this is to allow us to begin thinking about deprecating the autotools-based build system.
this won't happen until next year, most likely, but muon is sufficiently complete at this point that i think it solves the bootstrapping problem enough that we can start thinking about getting rid of the autotools stuff, probably in pkgconf 3.1 or so.
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CosmicWatch - The Desktop #Muon Detector(v3X): https://arxiv.org/abs/2508.12111 -> UD physicist’s invention expands our knowledge of the universe, particle physics: https://www.udel.edu/udaily/2026/january/cosmicwatch-particle-detector-spencer-axani-cas/
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CosmicWatch - The Desktop #Muon Detector(v3X): https://arxiv.org/abs/2508.12111 -> UD physicist’s invention expands our knowledge of the universe, particle physics: https://www.udel.edu/udaily/2026/january/cosmicwatch-particle-detector-spencer-axani-cas/
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Students at #SNOLAB are starting to engage in our common orientation for research experiences. One particle that comes up really early is the #muon. Students often don't learn about subatomic particle properties other than #electrons, #protons, and #neutrons until late in university. I made this video explicitly to help early-career students get familiar with the muon and see how it was the first direct test of the #relativity of time:
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Students at #SNOLAB are starting to engage in our common orientation for research experiences. One particle that comes up really early is the #muon. Students often don't learn about subatomic particle properties other than #electrons, #protons, and #neutrons until late in university. I made this video explicitly to help early-career students get familiar with the muon and see how it was the first direct test of the #relativity of time:
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#KnowledgeBit: The #Muon is one of the fundamental subatomic particles, the most basic building blocks of the universe as described in the Standard Model of particle physics.
Muons are similar to electrons but weigh more than 207 times as much. The muon is part of the lepton group.
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#KnowledgeBit: The #Muon is one of the fundamental subatomic particles, the most basic building blocks of the universe as described in the Standard Model of particle physics.
Muons are similar to electrons but weigh more than 207 times as much. The muon is part of the lepton group.
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"After measuring the wobbles of 300 billion muons, the Muon g − 2 Collaboration has pinpointed with exquisite precision the internal magnetism of these subatomic particles. [...] In a somewhat surprising turn of events, the final results from the Muon g − 2 experiment line up with the most recent predictions, further validating the standard model of particle physics."
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"After measuring the wobbles of 300 billion muons, the Muon g − 2 Collaboration has pinpointed with exquisite precision the internal magnetism of these subatomic particles. [...] In a somewhat surprising turn of events, the final results from the Muon g − 2 experiment line up with the most recent predictions, further validating the standard model of particle physics."
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#OnThisDay Birth Anniversary of Louis Sullivan (1856) - American architect, and has been called the "father of skyscrapers" and "father of modernism".
Birth Anniversary of physicist Carl David Anderson (1905) - best known for his discovery of the #Positron in 1932 and #Muon in 1936.
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#OnThisDay Birth Anniversary of Louis Sullivan (1856) - American architect, and has been called the "father of skyscrapers" and "father of modernism".
Birth Anniversary of physicist Carl David Anderson (1905) - best known for his discovery of the #Positron in 1932 and #Muon in 1936.
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In 1936, Carl D. Anderson and Seth Neddermeyer discovered the muon, a heavy-weight version of the electron. #Poetry #Science #History #ParticlePhysics #Muon #Anderson #Neddermeyer (https://sharpgiving.com/Sharp/thebookofscience/items/p1936b.html)
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In 1936, Carl D. Anderson and Seth Neddermeyer discovered the muon, a heavy-weight version of the electron. #Poetry #Science #History #ParticlePhysics #Muon #Anderson #Neddermeyer (https://sharpgiving.com/Sharp/thebookofscience/items/p1936b.html)
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The magnetic moment of the muon revisited
A couple of years ago I posted an item about a measurement of the anomalous magnetic moment of the muon, a quantity usually known as (g-2). At the time this appeared to be in conflict with the predictions of the standard model (SM)of particle physics but the general opinion among experts was that the problem was likely to lie with the calculations rather than the experiment.
Well, catching up on things I missed during examination marking season, I refer you to a substantial paper (188 pages long) that appeared on arXiv on 27th May 2025, with the abstract:
If this is too small to read I direct yourself to the salient point, namely that “there is no tension between the SM and experiment at the current level of precision”.
It seems the Standard Model survives to fight another day…
#anomalousMagneticMoment #arXiv250521476 #muon #muonMagneticMoment #ParticlePhysics
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And, let me not forget the #mystery of #gravity! Omnipresent, never seen...sound familiar?
"#spooky at a distance" gets much closer to #earth when #science spends billions on a huge shrine to the #particle gods (#LHC) and buries another deep underground hoping to come in direct contact with the god #muon (also known as #neutrino)
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In the next printing of Sapiens its author may want to reconsider the claim that #relativity isn't a #religion. There are many #science #gods that #physics venerates as #animist #supernatural phenomena: #darkmatter, #darkenergy, #antimatter, #muon and #higgsboson #particles; a #blackhole, the #bigbang, #multiverse and #quantumphysics* are all effectively a #belief #system.
As someone once replied to me, dismissively: "I only believe in the Standard Model"
(*Note I said quantum "physics")
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Muon g-2 collaboration announces most precise measurement of the anomalous magnetic moment of the muon / The third and final result is in perfect agreement with the first two results of the experiment 👉 https://press.uni-mainz.de/muon-g-2-collaboration-announces-most-precise-measurement-of-the-anomalous-magnetic-moment-of-the-muon/
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The anomalous magnetic moment of the muon in the Standard Model - an update: https://arxiv.org/abs/2505.21476 ("there is no tension between the SM and experiment at the current level of precision") -> Muon g-2 announces most precise measurement of the magnetic anomaly of the muon: https://news.fnal.gov/2025/06/muon-g-2-most-precise-measurement-of-muon-magnetic-anomaly/ / Muon g-2 collaboration announces most precise measurement of the anomalous magnetic moment of the #muon: https://nachrichten.idw-online.de/2025/06/03/muon-g-2-collaboration-announces-most-precise-measurement-of-the-anomalous-magnetic-moment-of-the-muon
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The anomalous magnetic moment of the muon in the Standard Model - an update: https://arxiv.org/abs/2505.21476 ("there is no tension between the SM and experiment at the current level of precision") -> Muon g-2 announces most precise measurement of the magnetic anomaly of the muon: https://news.fnal.gov/2025/06/muon-g-2-most-precise-measurement-of-muon-magnetic-anomaly/ / Muon g-2 collaboration announces most precise measurement of the anomalous magnetic moment of the #muon: https://nachrichten.idw-online.de/2025/06/03/muon-g-2-collaboration-announces-most-precise-measurement-of-the-anomalous-magnetic-moment-of-the-muon
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The muon's magnetic moment exposes a hole in the SM – unless it doesn't — https://physicsworld.com/a/the-muons-magnetic-moment-exposes-a-huge-hole-in-the-standard-model-unless-it-doesnt/
#HackerNews #muon #magnetic #moment #StandardModel #physics #research #particlephysics #science #news -
The muon's magnetic moment exposes a hole in the SM – unless it doesn't — https://physicsworld.com/a/the-muons-magnetic-moment-exposes-a-huge-hole-in-the-standard-model-unless-it-doesnt/
#HackerNews #muon #magnetic #moment #StandardModel #physics #research #particlephysics #science #news -
The muon g-2 puzzle rolls on.
"New, robust experimental measurements of the muon g-2’s dominant hadronic processes are also expected over the next couple of years. [...] It’s going to be an exciting few years. Being part of both the experiment and the theory means I have been privileged to see the process from both sides."
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The muon g-2 puzzle rolls on.
"New, robust experimental measurements of the muon g-2’s dominant hadronic processes are also expected over the next couple of years. [...] It’s going to be an exciting few years. Being part of both the experiment and the theory means I have been privileged to see the process from both sides."
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The muon g-2 puzzle is another honourable mention in FQxI's countdown of last year's biggest stories in physics. #Muon #Physics
Listen to the full podcast: https://qspace.fqxi.org/podcasts/122/2024.12.31
Credit: Derek Leinweber -
The muon g-2 puzzle is another honourable mention in FQxI's countdown of last year's biggest stories in physics. #Muon #Physics
Listen to the full podcast: https://qspace.fqxi.org/podcasts/122/2024.12.31
Credit: Derek Leinweber -
#DidYouKnow: The #Muon is one of the fundamental subatomic particles, the most basic building blocks of the universe as described in the Standard Model of particle physics.
Muons are similar to electrons but weigh more than 207 times as much. The muon is part of the lepton group.
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#DidYouKnow: The #Muon is one of the fundamental subatomic particles, the most basic building blocks of the universe as described in the Standard Model of particle physics.
Muons are similar to electrons but weigh more than 207 times as much. The muon is part of the lepton group.
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Huh, I know autotools is old and horrible but I didn't know there was anything to replace it.
This #muon thing sounds interesting.
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Huh, I know autotools is old and horrible but I didn't know there was anything to replace it.
This #muon thing sounds interesting.
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#fvwm3 #autotools #meson #muon #buildsystem
Hey all! Please note that although fvwm3-1.1.1 is close to being relesaed, there's still a few more things left to do.
Before that point, I'd like to take the opportunity to mention that as of fvwm3-1.1.1 fvwm3 is officially using meson/muon as the buildsystem of choice.
Autotools has been a tremendous help over the years. Heck, fvwm as a project started long before autotools existed.
But as technology changes, newer buildsystem alternatives have come along making better use of hardware, compilation speeds, etc.
Indeed, because of fvwm's age -- there's a tonne of custom m4 macros -- some of which are to work around issues long since gone. With autotools recently deprecating many of these, maintaining this was becoming difficult. Hence the change.
A six-month window exists once fvwm3-1.1.1 is released for downstream packagers to make the move from autotools to meson.
The `main` branch in the fvwm3 repository contains both buildsystems. Please give meson some testing!
A huge thanks goes to Kanjie (Matt Jolly) -- without whom none of this work would have been possible. Thanks, Matt!
For more specific details. please see: https://github.com/fvwmorg/fvwm3/discussions/1068
Questions? I'm here...
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#fvwm3 #autotools #meson #muon #buildsystem
Hey all! Please note that although fvwm3-1.1.1 is close to being relesaed, there's still a few more things left to do.
Before that point, I'd like to take the opportunity to mention that as of fvwm3-1.1.1 fvwm3 is officially using meson/muon as the buildsystem of choice.
Autotools has been a tremendous help over the years. Heck, fvwm as a project started long before autotools existed.
But as technology changes, newer buildsystem alternatives have come along making better use of hardware, compilation speeds, etc.
Indeed, because of fvwm's age -- there's a tonne of custom m4 macros -- some of which are to work around issues long since gone. With autotools recently deprecating many of these, maintaining this was becoming difficult. Hence the change.
A six-month window exists once fvwm3-1.1.1 is released for downstream packagers to make the move from autotools to meson.
The `main` branch in the fvwm3 repository contains both buildsystems. Please give meson some testing!
A huge thanks goes to Kanjie (Matt Jolly) -- without whom none of this work would have been possible. Thanks, Matt!
For more specific details. please see: https://github.com/fvwmorg/fvwm3/discussions/1068
Questions? I'm here...
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Dossier der Woche: Myonen – Fenster ins Verborgene. Was die schweren "Brüder" des Elektrons über unsere Welt verraten. #Myonen #Muon #Myonenscan #Teilchen #Archaeologie #Durchleuchtung #Physik
https://www.scinexx.de/dossier/myonen-fenster-ins-verborgene/ -
Dossier der Woche: Myonen – Fenster ins Verborgene. Was die schweren "Brüder" des Elektrons über unsere Welt verraten. #Myonen #Muon #Myonenscan #Teilchen #Archaeologie #Durchleuchtung #Physik
https://www.scinexx.de/dossier/myonen-fenster-ins-verborgene/ -
#OnThisDay Birth Anniversary of Louis Sullivan (1856) - American architect, and has been called the "father of skyscrapers" and "father of modernism".
Birth Anniversary of physicist Carl David Anderson (1905) - best known for his discovery of the #Positron in 1932 and #Muon in 1936.
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#OnThisDay Birth Anniversary of Louis Sullivan (1856) - American architect, and has been called the "father of skyscrapers" and "father of modernism".
Birth Anniversary of physicist Carl David Anderson (1905) - best known for his discovery of the #Positron in 1932 and #Muon in 1936.
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I have been trying to move from MacOS to #Linux (specifically #Ubuntu ) insofar as is possile, but there are a couple of pieces of software I cannot seem to find good replacements for.
One is a good free #RSS / #atom #newsreader that I can use WITHOUT connecting to any cloud services that aggregate feeds (in other words it will go out and get each feed individually) and that has what is sometimes called a "magazine" or "newspaper" view option. In many news #feedreader applications there are three panes - you select a feed (or folder containg a group of feeds) in one pane, and headlines from the feed(s) appear in a second pane. You then have to click on each headline individually to read the full text, which to me is annoying as hell. In "newspaper" or "magazine" view (if done correctly) there are only two panes, one shows your list of feeds and feed folders(groups of related feeds) and the other is the window where you read the articles just by scrolling through them, much like you read articles in your home feed in most Mastodon apps, but the difference is that if the feed contains the full text of the article then the full text appears. So you can scroll through all the articles quickly, without having to guess from the headlines which are interesting or relevant. That's why they tend to call it magazine or newspaper view; in either of those publications you almost always see the headline followed the full article. You can get this view using Vienna on MacOS but nothing I have found in Linux will do it. I had thought Fluent Reader might, but it has two issues, first it truncates many articles so it is not giving the full text, but also if you have a wide screen display it leaves far too much white space on the page (plus it is not a very visually appealing app, and I spend a lot of time reading feeds so that actually sort of matters).
The other is a free and easy to use dual pane file manager similar to ForkLift, that will work both with local directories and will also let you connect to external systems using sftp. In particular it will let you connect to server "A" in one pane and select files to move to server "B" in the second pane. #Muon come kind of close but it does not seem to recoznize key authentication and it tells you that passwords are saved insecurely in plain text, so that's a big "no". And besides that it really is not very intuitive. Maybe it would do what I want if I could actually figure out how to use it, but on the other hand they don't seem too concerned about security.
At this point I have found usable replacements for nearly everything else that I use regularly. There is one other difference that drives me crazy, though - in MacOS if I am in a program such as a newsfeed reader or an instant messaging program or whatever, and I click a link, it will send it to a #Firefox tab AND Firefox will immediately come to the foreground. Under #Ubuntu if you do the same thing, it will open a new tab in Firefox (I am pretty certain I had to set some preference to get that to happen) BUT Firefox does not become the foreground application. So, I think that nothing happened when I clicked the link, and click it again, and of course each time I click it is opening a new tab in Firefox to the same URL but I don't realize it because Firefox isn't coming to the foreground. Is there any way to make that happen in Ubuntu?
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I have been trying to move from MacOS to #Linux (specifically #Ubuntu ) insofar as is possile, but there are a couple of pieces of software I cannot seem to find good replacements for.
One is a good free #RSS / #atom #newsreader that I can use WITHOUT connecting to any cloud services that aggregate feeds (in other words it will go out and get each feed individually) and that has what is sometimes called a "magazine" or "newspaper" view option. In many news #feedreader applications there are three panes - you select a feed (or folder containg a group of feeds) in one pane, and headlines from the feed(s) appear in a second pane. You then have to click on each headline individually to read the full text, which to me is annoying as hell. In "newspaper" or "magazine" view (if done correctly) there are only two panes, one shows your list of feeds and feed folders(groups of related feeds) and the other is the window where you read the articles just by scrolling through them, much like you read articles in your home feed in most Mastodon apps, but the difference is that if the feed contains the full text of the article then the full text appears. So you can scroll through all the articles quickly, without having to guess from the headlines which are interesting or relevant. That's why they tend to call it magazine or newspaper view; in either of those publications you almost always see the headline followed the full article. You can get this view using Vienna on MacOS but nothing I have found in Linux will do it. I had thought Fluent Reader might, but it has two issues, first it truncates many articles so it is not giving the full text, but also if you have a wide screen display it leaves far too much white space on the page (plus it is not a very visually appealing app, and I spend a lot of time reading feeds so that actually sort of matters).
The other is a free and easy to use dual pane file manager similar to ForkLift, that will work both with local directories and will also let you connect to external systems using sftp. In particular it will let you connect to server "A" in one pane and select files to move to server "B" in the second pane. #Muon come kind of close but it does not seem to recoznize key authentication and it tells you that passwords are saved insecurely in plain text, so that's a big "no". And besides that it really is not very intuitive. Maybe it would do what I want if I could actually figure out how to use it, but on the other hand they don't seem too concerned about security.
At this point I have found usable replacements for nearly everything else that I use regularly. There is one other difference that drives me crazy, though - in MacOS if I am in a program such as a newsfeed reader or an instant messaging program or whatever, and I click a link, it will send it to a #Firefox tab AND Firefox will immediately come to the foreground. Under #Ubuntu if you do the same thing, it will open a new tab in Firefox (I am pretty certain I had to set some preference to get that to happen) BUT Firefox does not become the foreground application. So, I think that nothing happened when I clicked the link, and click it again, and of course each time I click it is opening a new tab in Firefox to the same URL but I don't realize it because Firefox isn't coming to the foreground. Is there any way to make that happen in Ubuntu?
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https://bigthink.com/starts-with-a-bang/calculation-solves-muon-g-2-puzzle/
That's be interesting, if it holds up.
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#DidYouKnow:The #Muon is one of the fundamental subatomic particles, the most basic building blocks of the universe as described in the Standard Model of particle physics.
Muons are similar to electrons but weigh more than 207 times as much. The muon is part of the lepton group.
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They: "Electronic devices are not allowed."
Me: "Joke's on you, my cell phone uses muons instead of electrons! 😎" -
@gregeganSF @johncarlosbaez Agree, muons are minimal-ionizing-particles (doing a little ionization and don't shower up via bremsstrahlung as electrons do) and as such super detector friendly. We created cosmic muon detectors in the physisc lab at uni by anti-correlating two scintillator with a lead plates inbetween and there are school versions of that experiment even. Here I assume a large area would be useful and extracting momentum and direction are the challenging bit. Dark matter and neutrino experiments have muons as a major background, which is why e.g. #icecube built a large surface array of scintillators for vetoing them. Will check out the sources now...
#muon #muography #muontopography #hep -
Muography, the technology that allows us to peer inside volcanos among other things, has a problem: magnetic fields distort images. A new simulation examines the scope of the problem.
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Los #muones que pueden revolucionar la física.
Los últimos y precisos resultados experimentales sobre el #muon una partícula parecida al electrón pero mucho más masiva, siguen sin coincidir con lo que plantean los físicos teóricos y el modelo estándar. ¿Habrá que revisarlo? Las claves de esta discrepancia nos las ofrece #DavidTarazona, uno de los científicos del proyecto.
#AgenciaSINC
#ciencia
#física
https://www.agenciasinc.es/Noticias/Los-muones-que-pueden-revolucionar-la-fisicaMás #podcast
https://rodriguezamorin.blogspot.com/p/radios.html?#Ciencia
