Measurement of the Decay ${\Xi }^0\to \Lambda \gamma$ with Entangled ${\Xi }^0{\bar{\Xi }}^0$ Pairs

BESIII Collaboration, M. Ablikim, M. N. Achasov +643

In this Letter, a systematic study of the weak radiative hyperon decay ${\Xi }^0\to \Lambda \gamma$ at an electron-positron collider using entangled ${\Xi }^0{\bar{\Xi }}^0$ pair events is presented. The…