Branching fraction measurement of <i>J</i>=Ψ → <i>K<sub>S</sub>K<sub>L</sub></i> and search for <i>J</i>=Ψ → <i>K<sub>S</sub>KS</i>
PHYSICAL REVIEW D, vol.96, no.11, 2017 (SCI-Expanded, Scopus)
- Publication Type: Article / Article
- Volume: 96 Issue: 11
- Publication Date: 2017
- Doi Number: 10.1103/physrevd.96.112001
- Journal Name: PHYSICAL REVIEW D
- Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Open Archive Collection: AVESIS Open Access Collection
- Bursa Uludag University Affiliated: No
Abstract
Using a sample of 1.31 x 10(9) J/Psi events collected with the BESIII detector at the BEPCII collider, we study the decays of J/Psi -> KSKL and KSKS. The branching fraction of J/Psi -> KSKL is determined to be B(J/Psi -> KSKL) = (1.93 +/- 0.01 (stat) +/- 0.05 (syst)) x 10(-4), which significantly improves on previous measurements. No clear signal is observed for the J/Psi -> KSKS process, and the upper limit at the 95% confidence level for its branching fraction is determined to be B(J/Psi -> KSKS) < 1.4 x 10(-8), which improves on the previous searches by 2 orders in magnitude and reaches the order of the Einstein-Podolsky-Rosen expectation.