Measurement of the Dalitz plot slope parameters for K⁺→ π⁺π⁰π⁰ decay

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• 作者：Batusov ; V.Y. ; Budagov ; Y.A. ; Chirikov-Zorin ; I.E. ; Chlachidze ; G.A. ; Davydov ; Y.I. ; Djinjaradze ; D.G. ; et. al.
• 关键词：13.25.Es ; Decay ; K-meson ; Non-leptonic ; Slope parameter ; Experiment ; Spectrometer
• 刊名：Nuclear Physics B
• 出版年：1998
• 出版时间：April 13, 1998
• 年：1998
• 卷：516
• 期：1-2
• 页码：3-12
• 全文大小：426 K

文摘

We have measured the Dalitz plot slope parameters for the K⁺ → π⁺π⁰π⁰ decay with an accuracy higher than in previous experiments. The values obtained are substantially different from the world averages. The experiment was performed at the Serpukhov PS with the HYPERON-2 spectrometer at the beam energy 10 GeV. We have collected about 33 000 events with energies and momenta measured for all involved particles.