$Μ$tristan

Abstract

The ultra-cold muon technology developed for the muon g − 2 experiment at J-PARC provides a low emittance µ + beam which can be accelerated and used for realistic collider experiments. We consider the possibility of new collider experiments by accelerating the µ + beam up to 1 TeV. Allowing the µ + beam to collide with a high intensity e − beam at the TRISTAN energy, E e − = 30 GeV, in the storage ring with the same size as TRISTAN (the circumference of 3 km), one can realize a collider experiment with the center-of-mass energy √ s = 346 GeV, which allows productions of the Higgs bosons through the vector boson fusion processes. We estimate the deliverable luminosity with existing accelerator technologies to be at the level of 5 × 10 33 cm −2 s −1 , with which the collider can be a good Higgs boson factory. The µ + µ + colliders up to √ s = 2 TeV are also possible by using the same storage ring. They have a capability of producing the superpartner of the muon up to TeV masses.