Helicity Amplitude Analysis of c(3900)± in e+e− →pi+pi−J/psi

Helicity Amplitude Analysis of c(3900)± in e+e− →pi+pi−J/psi
复制标题

e( )e(-) -> pi( )pi(-) J/psi 中 Z(c)(3900)( /-) 的螺旋幅度分析

DOI:
10.1088/0256-307x/33/6/061401
复制
发表时间:
2016
影响因子:
3.5
通讯作者:
Chang-Zheng Yuan苑长征
Chang-Zheng Yuan苑长征
中科院分区:
物理与天体物理3区
文献类型:
--
作者:
Rong-Gang Ping平荣刚;J. G. Messchendorp2;Chang-Zheng Yuan苑长征

文献摘要

相似文献

确定c(3900)±的自旋和宇称是理解其结构的关键。在假设=0−→+−,1+,1−,2+和2−的条件下,对过程中的c(3900)±进行了螺旋度振幅分析。为了估计=1+相对于其他假设的重要性,我们进行了蒙特卡罗模拟研究,并讨论了在未来的实验中用大量数据测量自旋宇称的前景。
It is crucial to determine the spin and parity ( ) of c(3900)± for understanding its structure. We perform a.helicity amplitude analysis on c(3900)± in the process +− → +−/ with the hypotheses = 0−, 1+, 1−,.2+ and 2−. To estimate the significance of = 1+ over other hypotheses, we perform a Monte Carlo simulation.study, and we also discuss the prospect of measuring the spin parity in the future experiment with a large data.sample.