利用 KLOE 探测器对 $\eta\to\pi^+\pi^-\pi^0$ Dalitz 图分布的精确测量
高能物理 - 实验
2016-01-27 v1 核实验
摘要
利用在 DANE 上 KLOE 探测器收集的 fb 的 数据，借助约 个事件的全球最大样本，研究了 衰变的 Dalitz 图分布。Dalitz 图密度被参数化为在归一化无量纲变量 和 中最高至三次项的多项式展开。该实验对展开式中所有电荷共轭守恒项（包括 项）敏感。所有参数的统计不确定性相较早期测量改善为原来的二分之一。
引用
@article{arxiv.1601.06985,
title = {Precision measurement of the $\eta\to\pi^+\pi^-\pi^0$ Dalitz plot distribution with the KLOE detector},
author = {2 Collaboration and A. Anastasi and D. Babusci and G. Bencivenni and M. Berlowski and C. Bloise and F. Bossi and P. Branchini and A. Budano and L. Caldeira Balkeståhl and B. Cao and F. Ceradini and P. Ciambrone and F. Curciarello and E. Czerwiński and G. D'Agostini and E. Dané and V. De Leo and E. De Lucia and A. De Santis and P. De Simone and A. Di Cicco and A. Di Domenico and R. Di Salvo and D. Domenici and A. D'Uffizi and A. Fantini and G. Felici and S. Fiore and A. Gajos and P. Gauzzi and G. Giardina and S. Giovannella and E. Graziani and F. Happacher and L. Heijkenskjöld and W. Ikegami Andersson and T. Johansson and D. Kamińska and W. Krzemien and A. Kupsc and S. Loffredo and G. Mandaglio and M. Martini and M. Mascolo and R. Messi and S. Miscetti and G. Morello and D. Moricciani and P. Moskal and M. Papenbrock and A. Passeri and V. Patera and E. Perez del Rio and A. Ranieri and P. Santangelo and I. Sarra and M. Schioppa and M. Silarski and F. Sirghi and L. Tortora and G. Venanzoni and W. Wiślicki and M. Wolke},
journal= {arXiv preprint arXiv:1601.06985},
year = {2016}
}
备注
11 pages, 9 figures, supplement: an ascii table