Recent results from NA48/2 on pion scattering lengths in Ke4 decay and cusp in K± → π±π0π0

被引：0
|
作者：
Venditti, S. [1 ]
机构：
[1] Univ Pisa, Dept Phys, I-56127 Pisa, Italy
来源：
QCD AT WORK 2007 | 2007年 / 964卷
关键词：
pion scattering lengths; Ke4; cusp;
D O I：
暂无
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The computation of pion scattering lengths a(0)(0) and a(0)(2) has been addressed in two independent analyses by the NA48/2 collaboration: the variation of the phase shift delta = delta(0)(0)-delta(1)(1) in K-+/- -> pi(+/-)pi(+/-)e(+/-)v (Ke4) decay and the fit of a cusp-like structure in the M-pi 0 pi 0(2) distribution of the K-+/- -> pi(+/-)pi(0)pi(0) decay.
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页码：21 / 27
页数：7
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