Particles called axions may be the reason the ‘Magnificent 7’ cluster of neutron stars emits extreme X-rays. Source: https://www.livescience.com/neutron-star-axion-particles.html
Tag: axions
X-rays surrounding ‘Magnificent 7’ may be traces of sought-after particle
A new study, led by a theoretical physicist at the U.S. Department of Energy’s Lawrence Berkeley National Laboratory (Berkeley Lab), suggests that never-before-observed particles called axions may be the source of unexplained, high-energy X-ray emissions surrounding a group of neutron stars. Source: https://phys.org/news/2021-01-x-rays-magnificent-sought-after-particle.html…
6 ways the hunt for dark matter changed in 2020
This year saw a possible first detection of solar axions, and the possible death of the sterile neutrino. Source: https://www.livescience.com/dark-matter-hunt-2020.html
Searching for invisible axion dark matter with a new multiple-cell cavity haloscope
Over the past few decades, many experimental physicists have been probing the existence of particles called axions, which would result from a specific mechanism that they think could explain the contradiction between theories and experiments describing a fundamental symmetry. This symmetry is associated with a matter-antimatter imbalance in the Universe, reflected in interactions between different particles. …
Search for invisible axion dark matter with a multiple-cell cavity
Despite its vanishingly tiny mass, the existence of the axion, once proven, may point to new physics beyond the Standard Model. Theorized to explain a fundamental symmetry problem in the strong nuclear force associated with the matter-antimatter imbalance in our universe, this hypothetical particle also makes an attractive dark matter candidate. Though axions would exist in vast enough numbers to be…
BREAKING: Physicists announce first direct evidence for ‘axions’
An experiment buried underground in Italy has turned up a mysterious result, and a never-before-seen “axion” particle seems like the most likely explanation. Source: https://www.livescience.com/first-evidence-for-axions-xenon.html
Looking for dark matter with the Universe’s coldest material
Scientists have been able to observe the universe and determine that about 80% of the its mass appears to be “dark matter,” which exerts a gravitational pull but does not interact with light, and thus can’t be seen with telescopes. Our current understanding of cosmology and nuclear physics suggests that dark matter could be made of axions, hypothetical particles with unusual…
First high-sensitivity dark matter axion hunting results from South Korea
Researchers at the Center for Axion and Precision Physics Research (CAPP), within the Institute for Basic Science (IBS, South Korea), have reported the first results of their search of axions, elusive, ultra-lightweight particles that are considered dark matter candidates. IBS-CAPP is located at Korea Advanced Institute of Science and Technology (KAIST). Published in Physical Review Letters, the analysis combines data taken…
What is dark matter?
Dark matter doesn’t emit light. It can’t be directly observed with any of the existing tools of astronomers. Yet astrophysicists believe it and dark energy make up most of the mass of the cosmos. What dark matter is, and what it isn’t. here. Source: https://earthsky.org/astronomy-essentials/definition-what-is-dark-matter…
Physicists Have Finally Seen Traces of the Long-Sought ‘Axion’ Particle
fahrbot-bot shares a report from Live Science: Scientists have finally found traces of the axion, an elusive particle that rarely interacts with normal matter. The axion was first predicted over 40 years ago but has never been seen until now. Scientists have suggested that dark matter, the invisible matter that permeates our universe, may be made of axions. But rather than…