K^±→π^±π^0π^0 衰变中 Dalitz 图参数的测量
高能物理 - 实验
2008-11-26 v1
摘要
使用来自 IHEP (Protvino) 加速器中 35 GeV/c 介子束的样本，测量了 K^±→π^±π^0π^0 衰变的 g、h、k Dalitz 图参数，这些参数是 |M(u,v)|^2 系列展开系数，其中 |M(u,v)|^2 ∝ 1 + gu + hu^2 + kv^2 (u、v 为不变变量)。调查了参数和拟合质量随 π^0π^0 质量截止值的依赖性。结果表明 π^+π^- → π^0π^0 电荷交换散射在 π^0π^0 质量阈值附近发挥重要作用。presented. The comparison of our data with previous measurements is presented.
引用
@article{arxiv.hep-ex/0509017,
title = {Measurements of the Dalitz Plot Parameters for $K^{\pm}\to\pi^{\pm}\pi^0\pi^0$ Decays},
author = {G. A. Akopdzhanov and V. B. Anikeev and V. A. Bezzubov and S. P. Denisov and A. A. Durum and Yu. V. Gilitsky and V. M. Korablev and V. I. Koreshev and A. V. Kozelov and E. A. Kozlovsky and V. I. Kurbakov and V. V. Lipaev and A. M. Rybin and A. A. Shchukin and M. M. Soldatov and D. A. Stoyanova and K. I. Trushin and I. A. Vasilyev},
journal= {arXiv preprint arXiv:hep-ex/0509017},
year = {2008}
}
备注
8 pages, 5 figures