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research article

Search for e+e− → $ {K}_S^0{K}_S^0{h}_c $

Ablikim, M.
•
Achasov, M. N.
•
Adlarson, P.
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May 16, 2025
Journal of High Energy Physics

Using e + e − collision data at 13 center-of-mass energies ranging from 4.600 to 4.951 GeV collected with the BESIII detector, we conduct the first search for the e + e − → $ {K}_S^0{K}_S^0{h}_c $ process and investigate the resonance structures in the cross section line shape. No significant signal is observed, and the upper limits of the Born cross sections at each center-of-mass energy are presented. The ratio $ \frac{\sigma \left({e}^{+}{e}^{-}\to {K}_S^0{K}_S^0{h}_c\right)}{\sigma \left({e}^{+}{e}^{-}\to {K}_S^0{K}_S^0J/\psi \right)} $ is determined to be 0.15 ± 0.22. This result indicates that if vector states exist in this energy region, their decay into h c is significantly suppressed compared to decays into J / ψ .

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Type
research article
DOI
10.1007/jhep05(2025)144
Author(s)
Ablikim, M.
Achasov, M. N.
Adlarson, P.
Afedulidis, O.
Ai, X. C.
Aliberti, R.
Amoroso, A.
An, Q.
Bai, Y.
Bakina, O.
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Corporate authors
The BESIII collaboration
Date Issued

2025-05-16

Publisher

Springer Science and Business Media LLC

Published in
Journal of High Energy Physics
Volume

2025

Issue

5

Article Number

144

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LPHE-LS  
Available on Infoscience
May 22, 2025
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/250358
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