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Research sheds light on axion dark matter

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Scientists at Durham University and King’s College London have published a theoretical review of a new study that strongly supports the search for Axion dark matter.


The identity of dark matter, which makes up 85% of matter in the universe, is one of the major unsolved problems in particle physics.

Scientists know its existence through the effects of gravitational pull on stars and galaxies, but what kind of particle it is remains a mystery.

Researchers analyzed how axions were described mathematically and showed how they relate to the basic symmetry of the Standard Model. Particle physics..

The axion explains why the strong interaction (the force that binds proton and neutron quarks) follows time-reversal symmetry. this is, Elementary particle levelThe process caused by the strong interaction looks the same even if the direction of time is reversed.

Why Strong interaction It is still unknown to follow time inversion symmetry. Axion is a common solution to this mystery.

Axion dark matter behaves like a field covering the universe, not like individual particles.In Early universe, The value of the axion field begins to vibrate back and forth. The energy stored in these vibrations is the axion dark matter.

It is known that any kind of dark matter can only interact very weakly with light, otherwise it would have already been seen by scientists. Axion dark matter interacts very weakly with light, but researchers may be able to see signs of this interaction by carefully watching telescope observations.

For example, photons (particles of light) magnetic field The chances of turning into an axion are small. This process will cause anomalous features in telescope observations of galaxies that shine through magnetic fields.

A complete analysis of the study was published at Science Advances.. Companion Review Paper — “Axion Dark Matter: How to See It?” By Yannis Semertzidis and Sung WooYoun — Shows how axions are quickly detected in the lab.

The study’s co-author, Dr. Francesca Chada Day, said: Dark matter.. I would like to solve this mystery someday by exploring various possibilities such as Axion. “

Researchers hope this review will increase interest and understanding Axion Physics within a wider community of physicists and scientists.


Constrain dark matter like axions using a Floquet quantum detector


For more information:
Francesca Chadha-Day et al, Axion Dark Matter: What and Why Now? , Science Advances (2022). DOI: 10.1126 / sciadv.abj3618.. www.science.org/doi/10.1126/sciadv.abj3618

Yannis K. Semertzidis et al, Axion Dark Matter: How to Look at It? , Science Advances (2022). DOI: 10.1126 / sciadv.abm9928.. www.science.org/doi/10.1126/sciadv.abm9928

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Durham University

Quote: The study sheds light on the Axion Dark Matter (February 23, 2022) obtained from https: //phys.org/news/2022-02-axion-dark.html on February 23, 2022.

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Research sheds light on axion dark matter

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