Ablikim, M.Achasov, M. N.Adlarson, P.Aliberti, R.Amoroso, A.An, M. R.Çetin, Serkant Ali2024-05-192024-05-1920232470-00102470-0029https://doi.org10.1103/PhysRevD.108.112012https://hdl.handle.net/20.500.12713/5835Based on a data sample of o10087 ? 44 thorn x 106 J=psi events collected with the BESIII detector, the branching fraction of J=psi -> over bar A pi thorn E- thorn c:c: is measured to be o1.221 ? 0.002 ? 0.038 thorn x 10-3, and the branching fraction of its isospin partner mode J=psi -> over bar A pi-E thorn thorn c:c: is measured to be o1.244 ? 0.002 ? 0.045 thorn x 10-3 with improved precision. Here the first uncertainties are statistical and the second ones systematic. The isospin symmetry of the E baryon in charmonium hadronic decay and the 12% rule are tested, and no violation is found. The potential of using these channels as E baryon sources for nuclear physics research is studied, and the momentum and angular distributions of these sources are provided.eninfo:eu-repo/semantics/openAccessHyperon-Nucleon InteractionLeading OrderDecaysTofArticle10811WOS:0011376988000012-s2.0-85182219364N/A10.1103/PhysRevD.108.112012Q1