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Center for Experimental Studies

The Center for Experimental Studies aims to elucidate phenomena related to the origin of our universe, from elementary particles to the large-scale structure of spacetime. At the Division of Flavor Physics, the Tau-Lepton Physics Group and the Fundamental Astroparticle Physics Group both conduct accelerator experiments: the ATLAS and the LHCf experiments at the Large Hadron Collider (LHC) at the European Organization for Nuclear Research (CERN) in Switzerland and the B-factory experiment at the High Energy Accelerator Research Organization (KEK) in Japan. While the Tau-Lepton Group focuses on the elementary particles produced at these facilities, the Astroparticle Physics Group focuses on bridging elementary particles and the universe at large. The Division of Origin of Spacetime Structures, which consists of the Observational Astrophysics Group and the Theoretical Spacetime Analysis Group, conducts observational and theoretical research related to the origin of spacetime structure of the universe, including black holes.

To produce front-line research results in a timely fashion, a powerful dedicated computer server (Tau-Lepton Data Analysis Laboratory) is fully utilized to promptly analyze data collected by experiments at CERN and KEK. In addition, the center contains the Instrument Development Laboratory, which can develop original instruments required for our observations and measurements.

Members

Division of Flavor Physics
Division of Flavor Physics is exploring physics phenomena of particle flavors. In the Tau-lepton physics group, the Tau-Lepton Physics Research Center at the Graduate School of Science joins, and carries out the LHC experiment at the world's highest beam energy, and the B-factory experiment at the world's highest beam intensity, in order to investigate the origin of particle mass, and look for phenomena beyond the Standard Model. The fundamental astroparticle physics group is conducting integrated research of the universe and particles, such as cosmic rays, dark matter, and neutrinos, in collaboration with researchers at the Solar-Terrestrial Environment Laboratory. We are participating in the OPERA experiment, which is aiming to discover, for the first time, the appearance of tau neutrinos produced by the neutrino oscillation, as well as searching for dark matter with the unique technologies such as nuclear emulsion, and investigating ultra-high energy cosmic ray interactions at the LHCf experiment.
Division of Origin of Spacetime Structures
Division of Origin of Spacetime Structures is conducting observational and theoretical research on phenomena relating to the origin of spacetime structures such as black holes. An observational astrophysics group is pursuing astrophysics research on supermassive black holes through multiwavelength observation utilizing flying objects such as balloons and satellites. A theoretical spacetime analysis group is exploring theoretical research on the spacetime structures near black holes.
Instrument Development Laboratory
Instrument Development Laboratory is developing advanced experimental and observational techniques based on our university's tradition, a spirit of "Mono-zukuri" (manufacturing). In particular, we are developing leading-edge technologies such as high-speed readout of nuclear emulsion image, and photon and particle detectors for particle physics experiments and astrophysics observations.
Tau-Lepton Data Analysis Laboratory
Tau-Lepton Data Analysis Laboratory is searching for new particles and phenomena by promptly analyzing the large amount of data obtained from accelerator experiments at CERN and KEK.