A study of the ηηπ- system produced in the reaction π-p → pπ+π-π-4γ at 18GeV/c

被引：0
|
作者：
Eugenio, P [1 ]
McNicoll, G [1 ]
机构：
[1] Carnegie Mellon Univ, Pittsburgh, PA 15213 USA
来源：
INTERSECTIONS OF PARTICLE AND NUCLEAR PHYSICS | 2000年 / 549卷
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中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Preliminary results are reported on the partial wave analysis of the eta eta pi (-) system in the reaction pi (-)p --> p pi (+)pi (-)pi (-)4 gamma at 18 GeV/c where both pi (0) and eta decay to gamma gamma. The data were obtained using the MultiParticle Spectrometer at Brookhaven National Laboratory. The a(0)(980) and f(0)(1500) are observed in the eta pi (-) and eta eta mass spectra, respectively. The accepted eta eta pi mass spectrum exhibits a structure consistent with the pi (1800). The results of the PWA show the pi (1800) decaying to both a(0)(980)eta and f(0)(1500)pi decay modes.
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页码：233 / 236
页数：4
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