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.

引用

页码：21 / 27

页数：7