[Research Area]
- Nuclear electric polarizability and equation of state of neutron star by measuring virtual photon scattering induced by proton scattering
- Damping and energy dissipation mechanism of nuclear giant resonances by measuring gamma decays
- Extragalactic propagation of ultra-high-energy cosmic rays through photo-nuclear reactions (PANDORA project)
- Evidence of nuclear reactions in laser plasma created by high-intensity laser beam irradiated on solid target
- Properties of the neutron star matter
- 3D neutron imaging
We study new nuclear phenomena by measuring the properties of the nuclear matter consisting of protons and neutrons for solving problems in the beginning of the universe and its evolution. In particular, we focus on the photo-nuclear reactions for extracting the electric dipole polarizability of nuclei, new excitation modes, the equation of state of a neutron star, Big Bang nucleosynthesis and photo-disintegration of ultra-high-energy cosmic-rays during the extragalactic propagation.
We employ the high-resolution magnetic spectrometer, Grand Raiden, and a proton beam from the accelerators at the Research Center for Nuclear Physics. We measure virtual photon excitation by a proton beam as well as gamma radiation with gamma detectors in collaboration with world-wide groups from e.g. Germany or Italy. We also develop charged particle detectors, photon detectors, electronics and data acquisition systems. Recently we started a new project to measure gamma-radiation from laser plasma induced by high-power laser irradiation on solid target.
We started a new project on studying the properties of the neutron star matter by high-resolution measurement employing a magnetic spectrometer. Three dimensional imaging technique by neutron detection employing a time projection chamber will also be developed.