A partial-wave analysis of the 3π system in the reaction K?p → π+π?π0Λ at 4.2 GeV/c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

按检索

A partial-wave analysis of the 3π system in the reaction K^?p → π⁺π^?π⁰Λ at 4.2 GeV/c

Authors:	M Cerrada F Wagner V Chaloupka RJ Hemingway SO Holmgren MJ Losty R Blokzijl GGG Massaro GF Wolters PM Heinen EW Kittel WJ Metzger JSM Vergeest B Foster J Wells

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

Abstract:	A partial-wave analysis of the (3π)⁰ system produced peripherally in the reaction K^?p → π⁺π^?π⁰Λ at 4.2 GeV/c is presented. The observation of the weak Λ decay allows a determination of all the transversity production amplitudes except for two phases. The production of known resonances having decay modes other than 3π is used to test the isobar model ansatz. Significant ω(783), φ(1020) and A₂(1310) production is observed. The spin parity of the $ω^{1} (1675)$ is established as 3^?. No evidence for production of other resonances, such as axial vector-mesons, is found.

Keywords:
本文献已被 ScienceDirect 等数据库收录！