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
@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
I don't understand what's 'daring' about this experimental setup.
"In this proof-of-principle study, the researchers demonstrated that their setup has sensitivity to [hypothesized] axions that is already competitive with other experiments using particle accelerators."
The editorial addition is mine, to make it more honest.
https://scitechdaily.com/dark-matters-secret-a-daring-experiment-seeks-the-elusive-axion/
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 #matter
https://nachrichten.idw-online.de/2025/02/20/on-the-hunt-for-axions
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
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…
✨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
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
The popular summary: "Axions, hypothetical particles posited as a source of dark matter, have eluded detection for decades due to their extremely weak interaction with light."
The actual summary: "#Axions, hypothetical particles posited as a source of #DarkMatter, have eluded detection for decades because they may not exist, but if they do the model has them interacting weakly with light."
https://journals.aps.org/prx/abstract/10.1103/PhysRevX.14.041015
"these findings...did not lead to the observation of signals associated with these hypothetical dark matter particles"
https://phys.org/news/2024-10-results-axion-dark-birefringent-cavity.html
Why these #PhD students take pictures of a miniature pool table? This table-top visualization is an analogy for a #symmetry found in the Standard Model of #particlephysics. It shows how a tilted world, i.e. the universe that does not require a symmetry, can host a perfectly horizontal pool table, representing the highly symmetric strong interaction. The photos and videos will first be used in a presentation by our former colleague at the #Axions 2024 conference.
I wrote an article for The Conversation about "dark matter stars"
@TheConversationUK@newsie.social
‘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.
ビッグバン後に爆発した「アクシオン星」が、暗黒物質の手掛かりになる可能性があるのです
https://www.space.com/axion-stars-big-bang-dark-matter
Dark matterの候補の一つであるaxionsに関する新しい研究。axion starsの存在が宇宙の暗黒物質の本質を明らかにする可能性がある。この研究は、宇宙背景放射の中にaxion starsの痕跡があるという説も提唱。
#宇宙 #暗黒物質 #axions
#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?
A team of #astrophysicists, led by researchers from the universities of Amsterdam and Princeton, has now shown that if #darkmatter consists of #axions, it may reveal itself in the form of a subtle additional glow coming from pulsating #stars.
New Link Found between Dark Matter and Universe’s Clumpiness
New research from the University of Toronto suggests that the so-called clumpiness problem, which centers on the unexpectedly even distribution of matter on large scales throughout the Universe, may be a sign that dark matter is composed of hypothetical, ultra-light particles called axions.
https://www.sci.news/astronomy/dark-matter-axions-12006.html #darkmatter #clumpiness #axions
