Author

X. Chai

2 papers indexed here

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Preprint Oct 2026

Determination of $U$-spin breaking parameters with an amplitude analysis of the decay $D^{0}\to K_{\text{S},\text{L}}^{0}\pi^{+}\pi^{-}$

We perform a simultaneous amplitude analysis of the decays $D^0 \to K_{\text{S}}^{0}\pi^{+}\pi^{-}$ and $D^0 \to K_{\text{L}}^{0}\pi^{+}\pi^{-}$ using an $e^+e^-$ collision data sample, corresponding to an integrated luminosity of $20.3\,\text{fb}^{-1}$, collected at the centre-of-mass energy of $3.773\,\text{GeV}$ wit...

Besiii Collaboration M. Ablikim, M. N. Achasov, P. Adlarson et al. · 0 citations

Preprint Aug 2026

Measurement of Branching Fraction and Transition Magnetic Moment of the Hyperon Dalitz Decay $\Sigma^0 \rightarrow \Lambda e^+e^-$

Based on a data sample of 10 billion $J/\psi$ events collected with the BESIII detector operating at the BEPCII collider, the Dalitz decay $\Sigma^0 \rightarrow \Lambda e^+e^-$ is studied experimentally for the first time. The $\Sigma^0$ hyperons are produced through the process $J/\psi \rightarrow \Sigma^0\bar{\Sigma}...

Besiii Collaboration M. Ablikim, M. N. Achasov, P. Adlarson et al. · 0 citations