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A new experimental method to search for T-violating transverse muon polarization ( P T ) in the K + → π 0 μ + ν decay has been proposed. In this new experiment, the measurements of the μ + momentum vector, the π 0 momentum vector, and the μ + polarization will be performed by the same electro-magnetic calorimeter. One of main issues is the choice of a scintillation material which can preserve the μ + spin polarization for several μ + lifetimes. A test experiment to measure the μ + polarization in various scintillating crystals was performed at J-PARC Material and Life Science Facility (MLF). We concluded that the μ + polarization in CeF 3 is high enough to perform the new T-violation experiment. [ABSTRACT FROM AUTHOR]

Spin polarized positive muons injected in matter serve as magnetic probes for the investigation of physical and chemical properties of free radicals, mechanisms of free radical reactions and their formations, and radiation effects. All muon techniques rely on the evolution of spin polarization (of the muon) and in that respect are similar to conventional magnetic resonance techniques. The applications of the muon as a hyperfine probe in several fields in chemistry are described. [ABSTRACT FROM AUTHOR]