Çetin, Serkant Ali2020-11-162020-11-162018-03-062470-00292470-0010https://hdl.handle.net/11411/2654https://doi.org/10.1103/PhysRevD.97.051101The decay J/psi -> gamma gamma phi is studied using a sample of 1.31 x 10(9) J/psi events collected with the BESIII detector. Two structures around 1475 MeV/c(2) and 1835 MeV/c(2) are observed in the gamma phi invariant mass spectrum for the first time. With a fit on the gamma phi invariant mass, which takes into account the interference between the two structures, and a simple analysis of the angular distribution, the structure around 1475 MeV/c(2) is found to favor an assignment as the eta(1475) and the mass and width for the structure around 1835 MeV/c(2) are consistent with the X(1835). The statistical significances of the two structures are 13.5 sigma and 6.3 sigma, respectively. The results indicate that both eta(1475) and X(1835) contain a sizeable s (s) over bar component.eninfo:eu-repo/semantics/openAccessArticle2-s2.0-8504484399210.1103/PhysRevD.97.051101Q1WOS:000426749800001