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

共 45 条

[1] ππ SCATTERING LENGTHS FROM MEASUREMENTS OF Ke4 AND K± → π±π0π0 DECAYS AT NA48/2
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[2] Pion-pion scattering lengths from Ke4 and Cusp at NA48/2 experiment
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[6] Pion scattering lengths from NA48
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[8] Recent results and prospects from NA48/2: K± → π0l±ν and K± → π+π-e±ν, K± → π0π0e±ν decays
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[10] TESTS OF CHIRAL PERTURBATION THEORY WITH Ke4 DECAYS AT NA48/2
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