π ? ω interference in the reactions K? p → π+ π? (Λ, ?0) at <math><mtext>4.2 GeV/</mtext><mtext>c</mtext></math>期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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π ? ω interference in the reactions K^? p → π⁺ π^? (Λ, ?⁰) at $4.2 GeV/ c$

Authors:	SO Holmgren M Aguilar-Benitez M Cerrada RJ Hemingway MJ Losty RP Worden B Jongejans GGG Massaro GF Wolters JJ Engelen DJ Schotanus RT Van de Walle B Foster L Lyons J Wells

Institution:	CERN, European Organization for Nuclear Research, Geneva, Switzerland;Nuclear Physics Laboratory, University of Oxford, Oxford, U.K.

Abstract:	π ? ω interference is studied in the reactions K^? p → π⁺ π^? (Λ⁰, ?) at 4.2 GeV/c using data from a high statistics experiments in the CERN 2m HBC. The phenomenon is analysed in terms of the conventional formalism as well as in terms of a new model for π ? ω interference proposed by Earles and Srivastava. Satisfactory agreement with the data is found for both models. The rate of ω → 2π obtained in the latter model is in agreement with the VMD (Vector Meson Dominance) prediction for ω → γ → ? → 2π.

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