IceCube, a high-energy neutrino observatory with a cubic kilometre active volume, has discovered astrophysical neutrinos with energies higher than a few tens of TeV. While the sources of these neutrinos are still unclear, their isotropic distribution supports that the majority of these neutrinos have an extragalactic origin. IceCube has conducted searches for the sources of this neutrino flux,...
The MOLLER experiment is a >$40M USD experiment expected to begin to run in late 2026. This experiment has a large Canadian contribution, to both the spectrometer and detector systems. The experiment utilizes parity-violation in the weak interaction to measure the asymmetry between longitudinally polarized electrons in the positive and negative helicity states. The electrons scatter from...
One of the long standing questions in the standard model of particle physics is the origin of the nucleon spin and the charge and density distributions inside the nucleon. In the theory of the strong interaction, the structure of the nucleon is described by form factors which can be accessed through hard exclusive meson production. The main focus of this study is to measure the form factor of...
Glueballs are colorless bound states of gluons as they have self-couplings. The existence of glueballs are very distinctive predictions of QCD. In this talk, I will briefly review recent experimental and theoretical progresses on the researches of glueballs. Especially, I will introduce the latest QCD sum rule calculations of the mass spectroscopy for the two-gluon and three-gluon glueballs.
The imbalance between matter and antimatter in the universe remains one of the biggest unanswered questions in physics. As the simplest purely antimatter atomic system, antihydrogen serves as an ideal platform for testing the fundamental symmetry between matter and antimatter (Charge-Parity-Time symmetry). Precise measurements of antihydrogen’s transition frequencies, in direct comparison with...
