Isospin breaking exposed in f0(980)-a0(980) mixing

被引：66

作者：

Close, FE ^{[1
]}

Kirk, A

机构：

[1] Rutherford Appleton Lab, Didcot OX11 0QX, Oxon, England

[2] Univ Birmingham, Sch Phys & Astron, Birmingham, W Midlands, England

来源：

PHYSICS LETTERS B | 2000年 / 489卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(00)00951-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We suggest that mixing between the F-0(980) and a(0)(980), due to their dynamical interaction with the nearby K (K) over bar thresholds, can give rise to a significantly enhanced production rate of a,(980) relative to a(2)(1320) in pp ->, p(s)(eta pi degrees)p(f) as x(F) -> 0. The peaking of the cross section as phi -> 0 should also occur. We show that such effects are seen in data and deduce that the f(0)(980) - a(0)(980) mixing intensity is 8 +/- 3 %. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：24 / 28

页数：5

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