Ablikim, M.Achasov, M. N.Adlarson, P.Ahmed, S.Albrecht, M.Aliberti, R.Çetin, Serkant Ali2024-05-192024-05-1920222470-00102470-0029https://doi.org10.1103/PhysRevD.106.112006https://hdl.handle.net/20.500.12713/5788Utilizing the data set corresponding to an integrated luminosity of 3.19 fb(-1) collected by the BESIII detector at a center-of-mass energy of 4.178 GeV, we perform an amplitude analysis of the D-s(+) -> pi(+) pi(-) pi(+) decay. The sample contains 13,797 candidates with a signal purity of similar to 80%. The amplitude and phase of the contributing pi pi S wave are measured based on a quasi-model-independent approach, along with the amplitudes and phases of the P and D waves parametrized by Breit-Wigner models. The fit fractions of different intermediate decay channels are also reported.eninfo:eu-repo/semantics/openAccessDecayD+Article10611WOS:000898923400003Q110.1103/PhysRevD.106.112006