Year: 2011
Type: conference-paper
Abstract: The "surface" muon beam which has been used for the studies of condensed matter physics or chemistry is conventionally obtained from the decay of positive pions (π + ) stopped near the surface of the pion production target in the proton beam line and has large energy broadening with an implantation depth of 0.1 to 1 mm. Despite the name of "surface" muon, it is used as a probe of bulk phenomena rather than surface phenomena. In these two decades, the new method to generate ultra-slow muon beam with energy 0.2 eV has been developed and successfully obtained by KEK and RIKEN group. When the production of intense ultra-slow muon source will be realized, the use of its short-range penetration depth will allow muon science to be expanded towards a variety of new nano-scientific fields, which we call "Ultra Slow Muon Microscope" such as, 1) Surface/boundary magnetism utilizing its spin polarization and unique time-window. 2) Surface chemistry, utilizing a feature of a light isotope of hydrogen; such as catalysis reactions. 3) Muon Microscopy, utilizing a feature of micron meter beam size, when ultra slow muon is accelerated. 4) Precise atomic physics testing QED, since Mu is the simplest lepton pair consisting μ + and e − . 5) Ion sources for- "g-2" experiment, and towards μ + μ − collider experiments in high-energy physics. Int this paper, the latest status of the intense low-emittance ultra slow muon source and its scientific prospects will be reported.
Institutions: High Energy Accelerator Research Organization, Japan Proton Accelerator Research Complex, Tokyo Institute of Technology, Japan Atomic Energy Agency, Advanced Science Research Center, University of Yamanashi, University of Maryland, College Park, Institute of Particle and Nuclear Studies, University of California, Riverside
Language: English
Subfield: Condensed Matter Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: diamond
OpenAlex ID: W2073345822