セミナー情報

• 日時: 12月26日（金） 15:00〜
• 講師: 中野 佑樹氏（富山大）
• 題目: Status of solar neutrino observation and prospect of solar g-modes search by neutrino detector

概要

Solar neutrinos are produced around the core of the Sun through nuclear fusion. They offer a unique tool for studying astrophysics and particle physics. The Sun does oscillate around its equilibrium state because of its restoring forces. The internal gravity modes, g-modes, may locally affect the electron density in the core of the Sun and result in the rise of temperature. Since the nuclear reactions are proportional to the temperature in the core, the production rates of the solar neutrinos are expected to be periodically amplified. In this talk, I briefly present solar neutrino measurements by neutrino detectors including the recent publications by Super-Kamiokande, Phys. Rev. D 109, 092001 (2024) and Phys. Rev. Lett. 132, 241803 (2024). Then, I discuss a recent theoretical development of periodic solar neutrinos fluctuation due to solar g-modes and possibilities to find such periodic signal with future neutrino detectors.