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A joint research group led by Professor Takahiro Tanaka (Kyoto University) and Associate Professor Yuko Urakawa (KEK, and Designated Associate Professor at KMI) has applied the “split universe approach,” in which the universe is recomposed into a coarse-grained mosaic art, to greatly simplify numerical calculations of primordial gravitational waves. This approach enables the numerical calculation of various models of the universe, including those that have been difficult to analyze due to the complex numerical calculations required. It is expected to …


On February 20, 2024, the Belle II experiment resumed data acquisition for physics measurements. Belle II is a particle physics experiment designed to investigate the properties of particles, such as B mesons, produced by the SuperKEKB accelerator. This research aims to study new physical phenomena that are crucial for understanding the mechanisms behind the creation of the universe. Operations were suspended for about 18 months starting in the summer of 2022, and major improvements were made to both the accelerator …


The X-ray astronomy satellite XRISM, primarily developed by JAXA Institute of Space and Astronautical Science (ISAS), is set to launch on August 26th September 7th (Thursday). Equipped with the world’s most advanced X-ray spectroscopic capability, the XRISM satellite will shed light on the dynamic nature of the universe. It will unveil the velocity, turbulence, and other motions of high-temperature plasma in high-energy celestial bodies like galaxy clusters and black holes with unparalleled precision. The Nagoya University group, led by Assoc. …


As of January 1, 2023, Mr. Shota Takahashi has joined the KMI Public Relations Office. Mr. Takahashi previously worked as a science communicator at the High Energy Accelerator Research Organization (KEK) in Tsukuba. He has been recognized as a “Tsukuba Science Education Meister” for his continuous efforts in organizing the Science Café, and we expect that he will promote public relations and outreach activities at KMI to further spread the interest in elementary particles and the universe. Click here to …


credit: Reiko Matsushita (Nagoya University)   An international research group led by Associate Professor Hironao Miyatake at KMI, Nagoya University, Assistant Professor Yuichi Harikane and Professor Masami Ouchi at the Institute for Cosmic Ray Research, University of Tokyo, and their colleagues, have successfully detected the presence of dark matter around galaxies in the distant universe approximately 12 billion light years ago for the first time by combining data from the Hyper Suprime-Cam (HSC) camera on the Subaru Telescope and ESA/NASA’s …


Dr. Takeshi Kaneko is newly assigned to KMI as a cross-appointed lecturer. Welcome! He belongs to KEK Theory Center and he is studying lattice QCD.  KEK Theory Center and KMI discussed cross-appointments in both directions.  Dr. Kaneko is assigned to KMI as a lecturer, and Dr. Teppei Kitahara in KMI is also assigned as an assistant professor in KEK Theory Center.  We hope that this will strengthen the relationship between KEK Theory Center and KMI.   Homepage of KEK Theory …


On Friday, January 14, 2022, Nagoya University and KMI hosted a special event entitled “The 50th Anniversary of the Kobayashi-Maskawa Theory – In Memory of Maskawa-san”. (*) 2022 marks the 50th anniversary of the proposal of the Kobayashi-Maskawa theory, for which Professors Makoto Kobayashi and Toshihide Maskawa were awarded the Nobel Prize. To reflect on their achievements and to remember Prof. Toshihide Maskawa, who passed away in July of 2021, we have planned the event that gives an overview of …


KMI Associate Professors Hironao Miyatake and Shingo Kazama were selected for the Fusion Oriented REsearch for disruptive Science and Technology (FOREST) program by the Japan Science and Technology Agency (JST). FOREST aims to create seeds that lead to innovation through diversity and interdisciplinary research without setting specific projects or short-term goals, this program provides long-term support for unrestricted, challenging, interdisciplinary, and diverse research not bound by the existing frameworks, for the period of seven years in principle (up to 10 …


The first “KMI Flash” hybrid – face-to-face and remote – conference was held on Wednesday, July 28, 2021. Due to the COVID19 disaster, students and young researchers have fewer opportunities to interact and present their research across fields and generations. Therefore, KMI Flash, a research presentation event for students and young researchers in the field of elementary particles and cosmology/astrophysics at Nagoya University, was organized by volunteers from KMI young researchers. There are different approaches and specialties in astro/particle physics, …