Takaharu Otsuka – författare

The Symposium "Symmetries in Science VII: Spectrum Generating Algebras and Dynamic Symmetries in Physics" was held at the Southern Illinois University at Carbondale in Niigata, Japan Campus, during the period August 28-31, 1992. The Symposium was held in honor of Professor Francesco lachello on the occasion of his 50th birthday. We wish to thank the colleagues and friends of Franco for their participation in the Symposium as well as for contributing articles to this volume honoring him. It was their commitment and involvement which made this Symposium a success. We also wish to thank Dr. Jared H. Dorn, the director of SIUC-N, for his support in the planning and the execution of the Symposium. Moreover we wish to thank Mayor Nobuo Kumakura of Nakajo town and Mr. Kaichi Suzuki of the school entity "The Pacific" for their friendly support. Bruno Gruber, SIUC-N Takaharu Otsuka, University of Tokyo v LAUDATIO ON THE OCCASION OF THE 50TH BIRTHDAY OF PROFESSOR FRANCESCO IACHELLO I first met Franco lachello in 1974. Driving a smart Alfa-Romeo, he came to meet me at the station at Groningen where I was to spend a summer conducting research.

The book contains the papers presented in the French-Japan Symposium on Nuclear Structure Problems, held in January 2011 at RIKEN Wako Campus with 100 participants.Based on the long history of collaboration between France and Japan in the field of nuclear physics, various problems in recent and future studies are discussed. Emphasis is on the structure of nuclei far from the stability, reactions involving stable and unstable nuclei, nuclear processes and properties of astrophysical interest, synthesis of super-heavy elements, and instrumentation and accelerator projects.

This memorial volume honors the life and work of Akito Arima (1930-2020), a distinguished physicist and educator who made significant contributions to nuclear physics and beyond. Through a series of heartfelt essays, personal recollections, and scientific papers, this book reflects Arima's profound influence on the field and his legacy in shaping global scientific discourse. Arima is best known for his development of the Interacting Boson Model and his pioneering work on nuclear structure, which laid the groundwork for much of today's research in nuclear theory. Additionally, his efforts in improving the educational landscape in Japan and his advocacy for scientific policy made him an instrumental figure in both the scientific community and politics. The contributions in this volume explore a wide range of topics, from the technical aspects of nuclear physics to his role in shaping science policy, with a particular focus on his lasting impact on academia, research, and society. Through tributes from students, colleagues, and friends, the book provides a comprehensive look at a remarkable career and the enduring legacy of a scientist whose influence transcended the laboratory.

The main purpose of this seminar is to discuss the frontier of nuclear spectroscopy, emphasizing the high spin nuclear spectroscopy and related topics. It includes lower spin spectroscopy, the chaotic nuclear phenomena and the double beta decay. This seminar consists of 15 invited talks and panel discussion on the detector frontier for the in-beam nuclear spectroscopy.

These proceedings comprise the contents of a major international conference on Perspectives of the Interacting Boson Model. Occasioned by the 20th Anniversary of this model, and attended by approx. 130 scientists from 29 countries, the topics focused on current and future research, which relates to the IBM. This model has now become one of the standard approaches to nuclear structure and has helped usher in a renaissance in that field and a new, unified perspective that focuses on dynamical symmetries and the key role of the valence nucleons. The algebraic approach fostered by the model is being extended to other fields, including nuclear reactions, molecular physics and baryon structure.