Çetin, Serkant Ali2020-06-032020-06-032020-02-052470-00292470-0010https://hdl.handle.net/11411/2139https://doi.org/10.1103/PhysRevD.101.032001Using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector, we perform a search for the rare decay if eta' -> 4 pi(0) via J/psi -> gamma eta'. No significant eta' signal is observed in the 4 pi(0) invariant mass spectrum. With a Bayesian approach, the upper limit on the branching fraction is determined to be B(eta' -> 4 pi(0)) < 4.94 x 10(-5) at the 90% confidence level, which is a factor of 6 smaller than the previous experimental limit.eninfo:eu-repo/semantics/openAccessArticle2-s2.0-8507982622910.1103/PhysRevD.101.032001Q1WOS:000511198700001