======================================================= July 1, 2002 Dear Friends: From April 1, 2001, a new accelerator project has been started in Japan at which high intensity proton beams of a MW class are available at both 50 GeV PS and 3 GeV PS. The first beams are expected in early 2007. On behalf of the Project Team of the JAERI-KEK Joint Project on this project, I would like to enclose Call for Letters of Intent (LoI's) on Nuclear and Particle Physics Experiments at 50 GeV PS Because we must start to fix various parameters for the project, I would like to ask you to pay a special attention to this call for LoI's. Of course, this call for LoI's will not decide the entire parameters. We will try to reserve as much freedom as possible, so that we can accept new ideas and new proposal in subsequent years. However, the first LoI's are important for us to advance into the first decision of various parameters for both accelerators and experimental halls. I warmly invite you to consider possible experiments at a forthcoming facility in Japan. Sincerely yours, Shoji Nagamiya E-mail: shoji.nagamiya@kek.jp Tel: 81-298-64-5678, Fax: 81-298-64-5258 ===========================================================