1ST MEASUREMENT OF THE TOTAL WIDTH OF THE ETA'-(958) MESON

被引：58

作者：

BINNIE, DM

CARR, J

DEBENHAM, NC

JONES, WG

KARAMI, H

KEYNE, J

SARMA, NH

机构：

[1] The Blackett Laboratory, Imperial College, London, England

来源：

PHYSICS LETTERS B | 1979年 / 83卷 / 01期

关键词：

D O I：

10.1016/0370-2693(79)90908-0

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In a high-resolution missing mass experiment the total width of the η′ (958) meson has been measured to be 0.28 ± 0.10 MeV. Using the known γγ branching ratio the value Γ(η′ → γγ) = 5.4 ± 2.1 keV is deduced. This is in good agreement with calculations based on fractional charge quarks and a pseudo-scalar mixing angle of 11°. © 1979.

引用

页码：141 / 146

页数：6

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