Çetin, Serkant Ali2022-10-182022-10-182022-071029-8479https://hdl.handle.net/11411/4585https://doi.org/10.1007/JHEP07(2022)051Abstract: Using e+e? annihilation data corresponding to a total integrated luminosity of 6.32 fb?1 collected at the center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform an amplitude analysis of the decay Ds+ ? K?K+?+?+?? and determine the relative fractions and phases of different intermediate processes. Absolute branching fraction of Ds+? K?K+?+?+?? decay is measured to be (6.60 ± 0.47stat.± 0.38syst.) × 10?3. The dominant intermediate process is Ds+? a1(1260)+?, ? ? K?K+, a1(1260)+? ??+, ? ? ?+??, with a branching fraction of (5.15 ± 0.41stat.± 0.32syst.) × 10?3. [Figure not available: see fulltext.] © 2022, The Author(s).eninfo:eu-repo/semantics/openAccessBranching fractionCharm Physicse+-e? ExperimentsParticle and Resonance ProductionArticle2-s2.0-8513417063510.1007/JHEP07(2022)051Q2WOS:000824901500005