Department of physics, Graduate school of science
Research Overview
My research theme is “Development of a CaF₂ scintillating bolometer for the observation of neutrino-less double beta decay.”
In the early universe, matter and antimatter are believed to have been produced in equal amounts. However, the present universe is composed almost entirely of matter, forming a so-called “matter-dominated universe.” One possible key to resolving the origin of this asymmetry is the yet-unobserved phenomenon known as neutrino-less double beta decay (0νββ).
The 0νββ process proceeds without emitting antineutrinos and violates lepton number conservation. If it truly exists, it would provide an important clue to explaining the dominance of matter in the universe. Nevertheless, this phenomenon is extremely rare, and existing experiments have constrained its half-life to greater than 10²⁶ years. Therefore, its observation requires highly sensitive detectors with background radiation and noise suppressed to the lowest possible levels.
To meet this challenge, I am developing a low-noise and high-sensitivity CaF₂ scintillating bolometer using ⁴⁸Ca as the target isotope. Although the natural abundance of ⁴⁸Ca is small, it is theoretically a low-background candidate nucleus and is considered highly promising for the search for 0νββ.
Self-Introduction
My hobbies are playing games and watching game streams. I mainly play FPS games. From time to time, I also go to live concerts of my favorite band to refresh myself.