Are axions scalars?
In supersymmetric theories the axion has both a scalar and a fermionic superpartner.
Are axions relativistic?
The couplings and masses of these axions can span many orders of magnitude, and cosmology leads us to consider several distinct populations of axions behaving as coherent condensates, or relativistic particles.
Why are axions important?
Physicists have long hypothesized the existence of a minuscule particle called the axion that could single-handedly solve two mysteries. It could account for a puzzling property of quarks, the elementary particles inside protons and neutrons, and it could comprise the dark matter that fills the cosmos.
Is dark matter magnetic?
The dark matter’s repellent, magnetism-like force was enough to accelerate the expansion of the universe, suggesting something similar could be happening in reality. Of course, this study alone doesn’t disprove the existence of dark energy, nor that dark matter is magnetic in any way.
Could photons be dark matter?
Dark photons, if they exist, are thought to be force-carrying particles, similar to the regular photons we interact with every day, which carry the electromagnetic force. But unlike massless photons, these dark-matter particles would have a mass, albeit a very small one.
Can neutrinos be dark matter?
Neutrinos are one candidate for dark matter but only if they have a nonzero rest mass. Neutrinos interact only via the weak force and gravity which would explain we don’t see dark matter can’t be detected through interactions with light like baryonic (normal) matter.
How can we detect axions?
The Axion Dark Matter eXperiment (ADMX) at the University of Washington uses a resonant cavity immersed in a superconducting (SC) magnet to detect the weak conversion of axions to microwave photons. Axions or ALPs produced by astrophysical objects could be detected by terrestrial telescopes.
What does dark matter do to humans?
In fact, the dark matter impact would generate so much heat that it would tunnel through body tissue as a flesh-melting plasma plume, the study authors reported. Most physicists hunting for dark matter are searching for particles smaller than atoms.
Is Neutralino a WIMP?
The neutralino is a possibility for the lightest supersymmetric particle, and hence WIMPs.
Can black holes swallow dark matter?
Dark matter does not reflect light or interact with ordinarymatter except through gravity. So when dark matter is swallowed by a black hole,it behaves somewhat differently than normal matter, the new study found. For example, as normal matter falls toward a blackhole, it heats up and radiates light.