In order to understand the most basic structure of matter and energy, an advance in the energy frontier of particle accelerators is required.
Accelerators are the instruments of choice by scientists engaged in particle physics research.
Advances in high energy particle physics have been, and are expected to continue to be, dependent on and paced by advances in accelerator facilities. The majority of contemporary high-energy physics experiments utilize colliders. In the 50's Tinlot discussed muon storage rings and in the 70's muon colliders were proposed by Skrinsky and Neuffer, but the luminosities were relatively low. In the last two years a renew interest in the idea arose and significant advances in pion capture and cooling has risen the luminosity to levels comparable to those of hadrons or electron machines. Smaller beamstrahlung with the consequent smaller energy loss and narrow energy spread, opens the possibility of more particle per bunch yielding greater luminosity.