Measurement of Born cross section of e+ e- → Σ plus Σ- at center-of-mass energies between 3.510 and 4.951 GeV
Using 24.1 fb-1 of e(+) e(-) collision data collected with the BESIII detector at the BEPCII collider, the Born cross sections and effective form factors of the e(+)e(-) -> Sigma(+) Sigma(-) reaction are measured. The measurements are performed at center-of-mass energies ranging from 3.510 to 4.951 GeV. No significant evidence for the decay of the charmonium(-like) states,psi(3770), psi(4040), psi(4160), Y (4230), Y (4360), psi(4415), and Y (4660), into a Sigma(+) Sigma(-) final state is observed. Consequently, upper limits for the products of the branching fractions and the electronic partial widths at the 90% confidence level are reported for these decays.
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Ablikim, M., Achasov, M. N., Adlarson, P., Afedulidis, O., Ai, X. C., Aliberti, R., Amoroso, A., An, Q., Bai, Y., Bakina, O., Balossino, I., Ban, Y., Bao, H.-R., Batozskaya, Begzsuren, K., Berger, N., Berlowski, M., Bertani, M., Bettoni, D., et al. (2024). Measurement of Born cross section of e+ e- → Σ plus Σ- at center-of-mass energies between 3.510 and 4.951 GeV. Journal of High Energy Physics, (5). https://doi.org/10.1007/JHEP05(2024)022
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