axion

From Washington University’s The Source, Oct. 23, 2019: The Department of Energy has awarded new funding to boost research on dark matter, the mysterious substance that makes up an astounding 85% of the matter in the universe. The Axion Dark Matter eXperiment is one of the fund’s recipients, and a number of Washington University scientists are collaborating on the project.

In their ongoing search for the mysterious dark matter that makes up 85% of our universe, the particle physics community turns its sights to particles of low mass. The Department of Energy announced that it is providing funding for two Fermilab initiatives to develop experimental designs for experiments that will be highly sensitive to the smallest particles of dark matter. Following the development of the experimental designs, the next phase of funding will be subject to additional reviews and approval.

From Physics Today, June 1, 2019: Fermilab scientist Aaron Chou is an author on this article on how microwave cavity experiments make a quantum leap in the search for the dark matter of the universe. The experimental hunt for a dark matter candidate called the axion has been going on for decades, and today, a number of experiments are putting the squeeze on this hypothesized particle.

Rakshya Khatiwada is an experimental astrophysicist at Fermilab working on dark matter searches and quantum science. When she’s not developing the newest detectors to look for dark matter, Khatiwada makes a point to engage with the next generation of scientists through informal lunches, talks and webinars.

Scientists think that, under some circumstances, dark matter could generate powerful enough gravitational waves for equipment like LIGO to detect. Now that observatories have begun to record gravitational waves on a regular basis, scientists are discussing how dark matter—only known so far to interact with other matter only through gravity—might create these gravitational waves.

For The New York Times, Feb. 25, 2019: Axions? Phantom energy? Astrophysicists scramble to patch a hole in the universe, rewriting cosmic history in the process. Fermilab scientist Josh Frieman is quoted in this article.

From APS News, July 2018: Scientists are looking down a number of avenues for dark matter. Fermilab’s Daniel Bowring and Dan Hooper discuss the search, and members of SuperCDMS, ADMX and other collaborations are on the hunt.