Abstract: Astrophysical observation indicates that 68% of the Universe is made up of dark energy, 27% is dark matter, and the rest 5% is ordinary matter. Therefore, probing the dark components of the Universe is the most prominent subject in modern particle physics. One of the strong candidates of dark matter is the hypothetical particle called axions. The axion has been postulated to solve the strong-CP problem in quantum chromodynamics. The strong-CP problem is manifested by the null observation of the neutron’s electric dipole moment. The Peccei-Quinn U(1) symmetry-breaking mechanism was suggested to solve the problem. The mechanism leaves a pseudo-Goldstone boson field, interpreted as the axion. The axion is also an ideal dark matter candidate who would have been produced during the Big Bang. The discovery of the axion will resolve the strong-CP problem, and the discovery of dark matter will revolutionize our understanding of the Universe. There are tremendous experimental efforts to discover the axion dark matter. In this seminar, I will discuss the recent experimental results of a dark matter search using an 18T magnet axion haloscope.
The College of Arts