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Molecular formula :
CAS :
nature : π o π, π ± first discovered the meson, π o π, π-, three π +, the static quality of 135.0,139.6,139. 6MeV/C2, the average life expectancy of 1.11 × × 10-8,2.55 10-16,2.55 × 10-8s, the intrinsic spin 0, intrinsic Yu called qi. Pion of isospin T = 1, π o π, π ± isospin component triplet state. With Hideki Yukawa (H. Yukawa) theory of nuclear power, nuclear power pion is the media that the quantum field of nuclear power. Pion can find cosmic rays, high-energy through nuclear and nuclear interactions can produce large, and the K-meson decay son can be. Pion decay following manner : π + + + μ �v μ & nbsp; π - �μ - v + μ ; π o π γ + γ
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