Hiroshi ITO

Hiroshi ITO

Dr. Sc., Chiba University, 2017
Lecturer

Research group: Particle Physics Group
Phone: +81-78-803-5655
E-mail: itoh.hiroshicrystal.kobe-u.ac.jp

Research Description

My topics are experiments related to subterranean astroparticles. In particular, I participate in the Super-Kamiokande and Hyper-Kamiokande experiments and study supernova neutrinos and solar neutrinos. We are searching for supernova neutrinos and diffuse supernova neutrino backgrounds to elucidate the mechanism of supernova explosions during stellar evolution. For these neutrino observations, ultra-low radioactivity techniques are essential. The development of ultra-low-background techniques for underground experiments is also ongoing.

Main Publications

• Hiroshi Ito, et al., “Analyzing the neutron and γ-ray emission properties of an americium–beryllium tagged neutron source”, Nuc. Inst. Meth. A 1057 (2023) 168701.
• Yuga Ommura, Hiroshi Ito, et al., “A method to measure the quenching factor for recoil energy of oxygen in bismuth germanium oxide scintillators”, JINST 18 T04006 (2023).
• H.Ito, et al. (J-PARC E36 Collaboration), “Measurement of structure dependent radiative K+→e+νγ decays using stopped positive kaons”, Phys. Lett. B 826 (2022) 136913.
• K. Abe et al., (Super-K Collab.), “Search for solar electron anti-neutrinos due to spin-flavor precession in the Sun with Super-Kamiokande-IV”, Astropart. Phys. 139 (2022) 102702.
• H. Ito, et al., “Development of an alpha-particle imaging detector based on a low radioactivity micro-time-projection chamber”, Nucl. Inst. Meth. A 953 (2020) 163050.