#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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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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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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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…
-
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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White Dwarf Stars May be Shrouded in Extremely Light Particles Called Axions https://www.universetoday.com/168970/white-dwarf-stars-may-be-shrouded-in-extremely-light-particles-called-axions-1/ #standardmodelofparticlephysics #cernaxionsolartelescope #darkmatterparticles #elementaryparticles #neutronstars #darkmatter #astronomy #cosmology #featured #axions
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White Dwarf Stars May be Shrouded in Extremely Light Particles Called Axions https://www.universetoday.com/168970/white-dwarf-stars-may-be-shrouded-in-extremely-light-particles-called-axions-1/ #standardmodelofparticlephysics #cernaxionsolartelescope #darkmatterparticles #elementaryparticles #neutronstars #darkmatter #astronomy #cosmology #featured #axions
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White Dwarf Stars May be Shrouded in Extremely Light Particles Called Axions https://www.universetoday.com/168970/white-dwarf-stars-may-be-shrouded-in-extremely-light-particles-called-axions-1/ #standardmodelofparticlephysics #cernaxionsolartelescope #darkmatterparticles #elementaryparticles #neutronstars #darkmatter #astronomy #cosmology #featured #axions
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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 -
🌌 New #DarkMatter Lecture! 💫 Discover #axions, learn about the #ALPS II experiment & more from the #OpenAccess @DESYnews lecture at https://enabla.com/pub/686/about 🎥
🗣 Don't be shy; ask your questions on Enabla and get answers from the lecturers themselves! Let's learn together!🤩
What is dark matter, and what are some current methods scientists are using to detect it? In this lecture, we explore the topic of this elusive substance that makes up approximately 85% of the matter in the universe. We discuss the evidence for the existence of dark matter, including gravitational lensing and the stability of galaxies, as well as the challenges in detecting it due to its lack of interaction with ordinary matter. We then focus on a particular candidate for dark matter called axions and describe an experiment aimed at detecting them using high-power lasers and strong magnets cooled to extremely low temperatures. The ALPS II experiment will significantly improve the sensitivity to a possible axion signal and could therefore provide crucial insight into the nature of dark matter. We also briefly discuss other methods for detecting dark matter, such as observing astrophysical processes. Finally, we consider the implications of dark matter for our understanding of the universe and the future directions of research in this exciting field. The lecture was given during the DESY Ukraine Winter School in February 2023.
All Enabla lectures are #free & #OpenAccess. Please support us by sharing this post, following our account & asking questions on #Enabla. Thank you!🙏
#Physics #Astrophysics #StandardModel #HighEnergyPhysics #HEP #ParticlePhysics #GravitationalLensing #Cosmology #IAXO
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#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