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Study of light scalar mesons through Ds+ →π0π0e+νe and KS0 KS0 e+νe decays

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Date

2022

Author

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, O.B.

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Citation

Ablikim, 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.

Abstract

Using 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+νe,f0(980)→π0π0. The product branching fraction of Ds+→f0(980)e+νe,f0(980)→π0π0 is measured to be (7.9±1.4stat±0.4syst)×10-4, with a statistical significance of 7.8σ. Furthermore, the upper limits on the product branching fractions of Ds+→f0(500)e+νe with f0(500)→π0π0 and the branching fraction of Ds+→KS0KS0e+νe 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.

Source

Physical Review D

Volume

105

Issue

3

URI

https://doi.org/10.1103/PhysRevD.105.L031101
https://hdl.handle.net/20.500.12713/2606

Collections

  • Scopus İndeksli Yayınlar Koleksiyonu [1937]
  • WoS İndeksli Yayınlar Koleksiyonu [2061]



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