Ablikim, M.Achasov, M. N.Adlarson, P.Ai, X. C.Aliberti, R.Amoroso, A.Çetin, Serkant Ali2024-05-192024-05-1920242470-00102470-0029https://doi.org10.1103/PhysRevD.109.032011https://hdl.handle.net/20.500.12713/5847Based on 7.33 fb-1 of e thorn e- collision data collected at center-of-mass energies between 4.128 and 4.226 GeV with the BESIII detector, the experimental studies of the doubly Cabibbo-suppressed decays D thorn s -> K thorn K thorn pi- and D thorn s -> K thorn K thorn pi-pi 0 are reported. We determine the absolute branching fraction of D thorn s -> K thorn K thorn pi- to be (1.24 thorn 0.28 -0.26 ostat thorn 0.06osyst thorn thorn x 10-4. No significant signal of D thorn s -> K thorn K thorn pi-pi 0 is observed and the upper limit on its decay branching fraction at 90% confidence level is set to be 1.7 x 10-4.eninfo:eu-repo/semantics/openAccessCharmArticle1093WOS:0011832285000132-s2.0-85186414562N/A10.1103/PhysRevD.109.032011Q1