Ablikim, M.Achasov, M.N.Adlarson, P.Ahmed, S.Albrecht, M.Aliberti, R.Amoroso, A.An, M.R.An, Q.Bai, X.H.Bai, Y.Bakina, O.Kolcu, Onur Buğra2022-04-062022-04-062022Ablikim, M., Achasov, M. N., Adlarson, P., Ahmed, S., Albrecht, M., Aliberti, R., ... & Kuemmel, M. (2022). Study of light scalar mesons through D s+→ π 0 π 0 e+ ν e and K S 0 K S 0 e+ ν e decays. Physical Review D, 105(3), L031101.2470-0010https://doi.org/10.1103/PhysRevD.105.L031101https://hdl.handle.net/20.500.12713/2606Using 6.32 fb-1 of e+e- collision data recorded by the BESIII detector at center-of-mass energies between 4.178 to 4.226 GeV, we present the first measurement of the decay Ds+?f0(980)e+?e,f0(980)??0?0. The product branching fraction of Ds+?f0(980)e+?e,f0(980)??0?0 is measured to be (7.9±1.4stat±0.4syst)×10-4, with a statistical significance of 7.8?. Furthermore, the upper limits on the product branching fractions of Ds+?f0(500)e+?e with f0(500)??0?0 and the branching fraction of Ds+?KS0KS0e+?e are set to be 7.3×10-4 and 3.8×10-4 at 90% confidence level, respectively. Our results provide valuable inputs to the understanding of the structures of light scalar mesons. © 2022 authors. Published by the American Physical Society.eninfo:eu-repo/semantics/openAccessArticle1053WOS:0008200965000072-s2.0-85126040369Q110.1103/PhysRevD.105.L031101Q1