Using $e^+e^-$ collision data collected with the BESIII detector corresponding to an integrated luminosity of $44.2~\mathrm{fb}^{-1}$, we measure the Born cross sections for the process $e^+e^- \to \Xi(1530)^0\bar{\Xi}^0 + \mathrm{c.c.}$ at 48 center-of-mass energies between $3.51$ and $4.95~\mathrm{GeV}$. The potential signal from non-$D\bar{D}$ decays of the $\psi(3770)$, i.e., $\psi(3770)\to\Xi(1530)^0\bar{\Xi}^0 + \mathrm{c.c.}$, is investigated by fitting the dressed cross section, but no significant signal is observed. An upper limit on the branching fraction $$\mathcal{B}(\psi(3770)\to\Xi(1530)^0\bar{\Xi}^0)$$ is determined at the $90\%$ confidence level.

Cross sections measurement of 𝑒+⁢𝑒− →Ξ⁢(1530)0⁢Ξ0bar+c.c. and search for 𝜓⁡(3770)→Ξ⁢(1530)0⁢Ξ0bar+c.c.

Garzia, I.;Melendi, F.  M.;
2026

Abstract

Using $e^+e^-$ collision data collected with the BESIII detector corresponding to an integrated luminosity of $44.2~\mathrm{fb}^{-1}$, we measure the Born cross sections for the process $e^+e^- \to \Xi(1530)^0\bar{\Xi}^0 + \mathrm{c.c.}$ at 48 center-of-mass energies between $3.51$ and $4.95~\mathrm{GeV}$. The potential signal from non-$D\bar{D}$ decays of the $\psi(3770)$, i.e., $\psi(3770)\to\Xi(1530)^0\bar{\Xi}^0 + \mathrm{c.c.}$, is investigated by fitting the dressed cross section, but no significant signal is observed. An upper limit on the branching fraction $$\mathcal{B}(\psi(3770)\to\Xi(1530)^0\bar{\Xi}^0)$$ is determined at the $90\%$ confidence level.
2026
Ablikim, M.; Achasov, M.  n.; Adlarson, P.; Ai, X.  c.; Aliberti, R.; Amoroso, A.; An, Q.; Bai, Y.; Bakina, O.; Ban, Y.; Bao, H. -R.; Batozskaya, V.; ...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11392/2634923
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