Author

G. Che

3 papers indexed here

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Preprint Sep 2026

Observation of $\eta(2600)$ and Threshold Enhancements in the $\Lambda\bar{\Lambda}$ System

Using $2712.4 \pm 14.3$ million $\psi(3686)$ events collected with the BESIII detector, the $\Lambda\bar{\Lambda}$ system produced in $\psi(3686)$ radiative decays is studied. A model-independent partial wave analysis reveals a significant threshold enhancement structure dominated by the $^1S_0$ and $^3P_0$ partial wav...

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

Preprint Sep 2026

Evidence for the semileptonic decay $\Lambda_c^{+} \to p \pi^{-} e^+ \nu_e$

Based on $4.5\, \mathrm{fb}^{-1}$ of $e^+e^-$ collision data collected with the BESIII detector at the BEPCII collider at center-of-mass energies between $4.600\,\mathrm{GeV}$ and $4.699\,\mathrm{GeV}$, the first search for the Cabbibo-suppressed semileptonic decay $\Lambda_c^+\to p\pi^-e^+\nu_e$ is performed. The bran...

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