| NUCLEAR PHYSICS |
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Angular Distribution of Production Planes in $J/\psi \rightarrow {\it \Lambda}\bar{\it \Lambda}$ Decay |
| Qiaorong Shen, Xinyan Tong**, Yunfei Long, Yajun Mao |
School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871
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| Cite this article: |
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Qiaorong Shen, Xinyan Tong, Yunfei Long et al 2019 Chin. Phys. Lett. 36 062301 |
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Abstract A new observable, the angle between ${\it \Lambda}$ and $\bar{\it \Lambda}$ decay planes, is proposed to test the theoretical predictions on the spin correlation. With 10 billion $J/\psi$ 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.
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Received: 21 February 2019
Published: 18 May 2019
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| PACS: |
23.20.En
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(Angular distribution and correlation measurements)
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13.25.Gv
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(Decays of J/ψ, Υ, and other quarkonia)
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14.20.Jn
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(Hyperons)
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| Fund: Supported by the National Natural Science Foundation of China under Grant No 11661141008. |
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