Intense Proton Accelerator of Japanese Hadron Project as a Basis for μ+μ- Colliders

The Japanese Hadron Project which is now under serious considerations as a next generation of high intensity proton accelerator can be considered as a basic for μ⁺μ^- colliders. At the same time, the ideas for providing intense high-quality eV to keV muons proposed in the eighties have been successfully realized recently These ultra-slow muons will have a possible large-scale application to an eventual μ⁺μ^- collider.