Author:
Shen Qiaorong,Tong Xinyan,Long Yunfei,Mao Yajun
Abstract
A new observable, the angle between Λ and
Λ
¯
decay planes, is proposed to test the theoretical predictions on the spin correlation. With 10 billion J/ψ events collected with the BESIII detector at the BEPCII e
+
e
− collider, the distribution of the angle could be measured to verify whether or not a correlation exists.
Subject
General Physics and Astronomy