Ablikim, M.Achasov, M. N.Adlarson, P.Ahmed, S.Albrecht, M.Aliberti, R.Çetin, Serkant Ali2024-05-192024-05-1920231029-8479https://doi.org10.1007/JHEP03(2023)022https://hdl.handle.net/20.500.12713/5703A search for the hadronic decays of the h(c) meson to the final states p (p) over bar pi(+)pi(-)pi(0) , pp eta , and pp pi 0 via the process psi (3686) -> pi(0)h(c) is performed using (4.48 +/- 0.03) x 10(8) psi (3686) events collected with the BESIII detector. The decay channel h(c) -> p (p) over bar eta is observed for the first time with a significance greater than 5 sigma and a branching fraction of (6.41 +/- 1.74 +/- 0.53 +/- 1.00) x 10(-4) , where the uncertainties are statistical, systematic, and that from the branching fraction of psi (3686) -> pi(0)h(c). Strong evidence for the decay h(c) -> p (p) over bar pi(+)pi(-)pi(0) is found with a significance of 4.9 sigma and a branching fraction of (3.84 +/- 0.83 +/- 0.69 +/- 0.58) x 10(-3). The significances include systematic uncertainties. No clear signal of the decay h(c) -> p (p) over bar pi(0) is found, and an upper limit of 6.59 x 10(-4) on its branching fraction is set at the 90% confidence level.eninfo:eu-repo/semantics/openAccess[No Keywords]Correction3WOS:0009893396000012-s2.0-85160034509N/A10.1007/JHEP03(2023)022Q2