On the extraction of the quark mass ratio (md-mu)/ms from Γ(η′→π0π+π-)/Γ(η′→ηπ+ π-)

被引：34
作者：
Borasoy, B.
Meissner, Ulf-G.
Nissler, R.
机构：
[1] Univ Bonn, Helmholtz Inst Strahlen & Kernphys Theorie, D-53115 Bonn, Germany
[2] Forschungszentrum Julich, Inst Kernphys Theorie, D-52425 Julich, Germany
来源：
PHYSICS LETTERS B | 2006年 / 643卷 / 01期
关键词：
D O I：
10.1016/j.physletb.2006.10.020
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The claim that the light quark mass ratio (m(d) - m(u))/m(s) can be extracted from the decay width ratio Gamma(eta' -> pi(0)pi(+)pi(-))/Gamma(eta' -> eta pi(+)pi(-)) is critically investigated within a U(3) chiral unitary framework. The influence of the recent VES data on the eta' -> eta pi(+)pi(-) decay is also discussed. (c) 2006 Elsevier B.V. All rights reserved.
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页码：41 / 45
页数：5
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