#axions — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #axions, aggregated by home.social.
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Undergraduate-built cavity detector sets new limits on axion dark matter
📰 Original title: Students build a “cosmic radio” to listen for dark matter
🤖 IA: It's not clickbait ✅
👥 Usuarios: It's not clickbait ✅View full AI summary: https://killbait.com/en/undergraduate-built-cavity-detector-sets-new-limits-on-axion-dark-matter/?redirpost=68bfe740-d6b7-49ab-8657-76feee4101ea
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Dark matter is still one of physics’ biggest mysteries.
Now, researchers have recreated axion-like behavior in a lab — using quasiparticles.This isn’t just theory.
It’s a testable, physical analog of a leading dark matter candidate.Condensed matter might be the next frontier for dark matter experiments.
https://www.sciencenews.org/article/dark-matter-axions-quasiparticles
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@ThreeSigma For which problem ? If for instance it’s #Axions for #DarkMatter and your getting model parity then new bounds above or below coming from the #LHC will rule out that candidate for every model, not just strings. Now you might ask since we reference everything to the #SM and a model is eventually just good enough to replicate all its weaknesses and outstanding problems well where’s the advantage ? No one will deny the validity of that question. At least It levels the playing field
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X-rays from Dark Matter?
https://scitechdaily.com/physicists-may-have-found-dark-matter-x-rays-surrounding-magnificent-7-may-be-traces-of-theorized-particle/
#XMMNewton
#ChandraX
#XRay #XRays
#astronomy #DarkMatter
#axion #axions #WIMP
#particle #physics
#astrophysics #cosmology
#NeutronStar #NeutronStars -
X-rays from Dark Matter?
https://scitechdaily.com/physicists-may-have-found-dark-matter-x-rays-surrounding-magnificent-7-may-be-traces-of-theorized-particle/
#XMMNewton
#ChandraX
#XRay #XRays
#astronomy #DarkMatter
#axion #axions #WIMP
#particle #physics
#astrophysics #cosmology
#NeutronStar #NeutronStars -
X-rays from Dark Matter?
https://scitechdaily.com/physicists-may-have-found-dark-matter-x-rays-surrounding-magnificent-7-may-be-traces-of-theorized-particle/
#XMMNewton
#ChandraX
#XRay #XRays
#astronomy #DarkMatter
#axion #axions #WIMP
#particle #physics
#astrophysics #cosmology
#NeutronStar #NeutronStars -
X-rays from Dark Matter?
https://scitechdaily.com/physicists-may-have-found-dark-matter-x-rays-surrounding-magnificent-7-may-be-traces-of-theorized-particle/
#XMMNewton
#ChandraX
#XRay #XRays
#astronomy #DarkMatter
#axion #axions #WIMP
#particle #physics
#astrophysics #cosmology
#NeutronStar #NeutronStars -
On the hunt for #axions / New #X-ray experiment at the @EuropeanXFEL could solve some of the mysteries of #physics / publication in #Physical #Review #Letters
https://www.xfel.eu/news_and_events/news/index_eng.html?openDirectAnchor=2615&two_columns=0
#STFC # Oxford #dark #matterhttps://nachrichten.idw-online.de/2025/02/20/on-the-hunt-for-axions
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SciTech Chronicles. . . . . . . . .Feb 9th, 2025
#microbiomes #Isala #dysbiosis #vaginal #Silverblue #rpm-ostree #containers #cloud #space-time #lasers #Lambda-CDM #axions #DeepSeek #AI #NowSecure #ATS #graphene #superconduction #moiré #quasiparticles
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SciTech Chronicles. . . . . . . . .Feb 9th, 2025
#microbiomes #Isala #dysbiosis #vaginal #Silverblue #rpm-ostree #containers #cloud #space-time #lasers #Lambda-CDM #axions #DeepSeek #AI #NowSecure #ATS #graphene #superconduction #moiré #quasiparticles
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SciTech Chronicles. . . . . . . . .Feb 9th, 2025
#microbiomes #Isala #dysbiosis #vaginal #Silverblue #rpm-ostree #containers #cloud #space-time #lasers #Lambda-CDM #axions #DeepSeek #AI #NowSecure #ATS #graphene #superconduction #moiré #quasiparticles
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SciTech Chronicles. . . . . . . . .Feb 9th, 2025
#microbiomes #Isala #dysbiosis #vaginal #Silverblue #rpm-ostree #containers #cloud #space-time #lasers #Lambda-CDM #axions #DeepSeek #AI #NowSecure #ATS #graphene #superconduction #moiré #quasiparticles
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SciTech Chronicles. . . . . . . . .Feb 9th, 2025
#microbiomes #Isala #dysbiosis #vaginal #Silverblue #rpm-ostree #containers #cloud #space-time #lasers #Lambda-CDM #axions #DeepSeek #AI #NowSecure #ATS #graphene #superconduction #moiré #quasiparticles
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Passend zum letzten Boost vom @MPIfR_Bonn: Wenn ihr mehr über die Suche nach axion-ähnlichen Teilchen mit dem Experiment ALPS II am @DESY und unsere Beiträge erfahren möchtet, bitte hier entlang…
➡️ https://www.aei.mpg.de/alps
In line with the last boost of the @MPIfR_Bonn posts: If you would like to learn more about the search for axion-like particles using the ALPS II experiment at @DESY and our contributions, this way please…
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✨During the #Christmas season, we often think of #wonders and the invisible🪄 that connects our world. Did you know that scientists are searching for an invisible wonder - but in the #universe? 🌌 #Axions, the promising candidates for Dark Matter (DM)🖤, are ultra-light particles with masses around 10⁻²² eV and wavelengths of about one kiloparsec (~ 3x10¹⁶ km).
Particles with similar properties to axions are called "axion-like particles" (ALPs). 💡ALPs, which include ultra-light axions, can alter #light polarization – meaning the alignment of #lightwaves. During an internship with us, Sarah searched for such phenomena in low-frequency #LOFAR data 📡 from the pulsar PSR J0332+5434. Low frequencies📉 are ideal, as the ionosphere – an electron layer in the Earth's atmosphere 🌍, caused by solar radiation – creates interference that can be removed from low-frequency LOFAR data through calibration.
According to theories, axions apperars in strong magnetic fields, such as in #stellar cores, where they can escape because they interact very weakly with normal matter. Just like DM 🖤.
Similarly, pulsars have extremely strong static magnetic fields. When cosmic ALPs enter a strong #magneticfield, they can be converted into photons – that is, light 🌟 – and thus become detectable, if ultra-light axions exist.
Currently, there are three methods for searching for ALPs:
1️⃣ Helioscopes for solar ALPs (e.g. IAXO, 🖥️ 1) ☀️,
2️⃣ Haloscope searches in the galactic halo 🌌 (e.g. observing radiopulsars, 🖥️ 2), and
3️⃣ Generating ALPs in the lab 🔬 (e.g. ALPS II, @DESY , 🖥️ 3).
© S.Pappert, E.Moerova | MPIfR -
Supernova #Axions Convert to Gamma Rays in Magnetic Fields of Progenitor Stars: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.133.211002 -> A nearby supernova could end the search for dark matter: https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.133.211002 - axion dark matter should be produced and converted to gamma rays during a supernova.
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I wrote an article for The Conversation about "dark matter stars"
@[email protected]‘Dark stars’: dark matter may form exploding stars – and observing the damage could help reveal what it’s made of.
We wouldn’t be able to see them directly, but they could be out there.
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#Axions are hypothetical elementary #particles that were initially postulated to solve a theoretical shortcoming of the strong interaction, the so-called strong CP problem. For many years, axions or axion-like particles (ALPs) have also been considered promising candidates for dark matter.
#Physics #sflorg
https://www.sflorg.com/2023/12/phy12112301.html -
If #axions were indeed out there, could they also constitute part or even all of the missing #DarkMatter? Perhaps, but an additional question that haunted all dark matter research was just as valid for axions: if so, then how can we see them? How does one make something "dark" visible?
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Ultra-light #axions and the S8 tension - joint constraints from the cosmic microwave background and galaxy clustering: https://iopscience.iop.org/article/10.1088/1475-7516/2023/06/023 -> Astronomers discover new link between dark matter and 'clumpiness' of the universe: https://www.artsci.utoronto.ca/news/astronomers-discover-new-link-between-dark-matter-and-clumpiness-universe and https://www.dunlap.utoronto.ca/astronomers-discover-new-link-between-dark-matter-and-clumpiness-of-the-universe/
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Since #axions were first predicted by theory nearly half a century ago, researchers have hunted for proof of the elusive #particle, which may exist outside the visible #universe, in the dark sector. But how does one find particles that can’t be seen?
#Physics #sflorg
https://www.sflorg.com/2023/06/phy06072303.html -
From 21 Apr: No WIMPS! Heavy particles don’t explain gravitational lensing oddities - Enlarge / The red arcs at the right of center are background galaxies distorted by gravita... https://arstechnica.com/science/2023/04/gravitational-lensing-may-point-to-lighter-dark-matter-candidate/ #astronomy #axions #cosmology #dark-matter #particle-physics #science #wimps
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Anomalies in Gravitational-Lensed Images Revealing Einstein Rings Modulated by Wavelike #DarkMatter: https://arxiv.org/abs/2304.09895 -> No WIMPS! Heavy particles don’t explain #GravitationalLensing oddities - detailed look at a lensed galaxy favors lighter particles called #axions: https://theconversation.com/new-look-at-einstein-rings-around-distant-galaxies-just-got-us-closer-to-solving-the-dark-matter-debate-204109 and https://arstechnica.com/science/2023/04/gravitational-lensing-may-point-to-lighter-dark-matter-candidate/
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Gravitational lensing may point to lighter dark matter candidate - Enlarge / The red arcs at the right of center are background galaxies d... - https://arstechnica.com/?p=1933677 #particlephysics #darkmatter #astronomy #cosmology #science #axions #wimps
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New look at 'Einstein rings' around distant galaxies just got us closer to solving the dark matter debate
#EinsteinRings
#DarkMatter
#Galaxies
#FundamentalParticle
#WIMPs
#Axions
#Einstein
#EinsteinsTheory
#Gravity
#GravitationalLensing
#Amruth
https://phys.org/news/2023-04-einstein-distant-galaxies-closer-dark.html -
#Axions have a double motivation: they solve the 'strong CP problem' of the #StandardModel of elementary #Particles & they are a candidate for the #DarkMatter of the #Universe. The discovery of axions would answer many questions about dark matter & other #ParticlePhysics mysteries. Axions are also predicted by #StringTheory, or the idea that all the forces & particles in the universe are tied together as part of the same framework.
https://ui.adsabs.harvard.edu/abs/2017MPLA...3240003Y/abstract
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I appreciate the love from my #introduction. Please welcome several members of the #Axios crew, fellow #Axions @russcontreras @tylerbuchanan @daniellealberti @kristaldixon who also joined this community.
#LocalNews -
The WIMP is Dead, Long Live the Solar Axion! - For decades scientists have been building detectors deep underground to search for dark matter. Now ... more: https://hackaday.com/2020/07/06/the-wimp-is-dead-long-live-the-solar-axion/ #originalart #darkmatter #neutrinos #featured #science #xenon1t #axions
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Dark Matter Experiment Finds Unexplained Signal | Quanta Magazine
https://www.quantamagazine.org/dark-matter-experiment-finds-unexplained-signal-20200617/#physics #abstractions #dark_matter #experimental_physics #axions #particle_physics #neutrinos #xenon1t #abstractions_blog
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Dark matter link to regular matter’s dominance fails to show up - Enlarge / Given how messy a typical physics lab is, CERN is just as likely to lose the animator it ... more: https://arstechnica.com/?p=1602835 #antimatter #darkmatter #science #physics #axions