摘要
A new observable, the angle between ■ decay planes, is proposed to test the theoretical predictions on the spin correlation. With 10 billion J/ψ events collected with the BES Ⅲ detector at the BEPCⅡ e^+e^- collider, the distribution of the angle could be measured to verify whether or not a correlation exists.
A new observable, the angle between ■ decay planes, is proposed to test the theoretical predictions on the spin correlation. With 10 billion J/ψ events collected with the BES Ⅲ detector at the BEPCⅡ e^+e^- collider, the distribution of the angle could be measured to verify whether or not a correlation exists.
作者
沈巧蓉
童心言
龙云飞
冒亚军
Qiaorong Shen;Xinyan Tong;Yunfei Long;Yajun Mao
基金
Supported by the National Natural Science Foundation of China under Grant No 11661141008
