Angular Distribution of Production Planes in J/Ψ → Λ(Λ) Decay

• 来源期刊: 中国物理快报（英文版）
• 年，卷（期）: 2019,（6）
• 页码范围: 21-23
• 页数: 3页
• 语种: 英文
• DOI: 10.1088/0256-307X/36/6/062301

摘要

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.