@article{d1e8bbe096e94f5585aa8470adf26818,
title = "Amplitude analysis and branching fraction measurement of the decay Ds+ → K+ π + π − π 0",
abstract = "The singly Cabibbo-suppressed decay Ds+ → K+π+π−π0 is observed by using a data set corresponding to an integrated luminosity of 6.32 fb−1 recorded by the BESIII detector at the centre-of-mass energies between 4.178 and 4.226 GeV. The first amplitude analysis of Ds+ → K+π+π−π0 reveals the sub-structures in this decay and determines the fractions and relative phases of different intermediate processes. The dominant intermediate process is Ds+ → K*0ρ+, with a fit fraction of (40.5 ± 2.8stat. ± 1.5syst.)%. With the detection efficiency based on our amplitude analysis, the absolute branching fraction for Ds+ → K+π+π−π0 is measured to be (9.75 ± 0.54stat.± 0.17syst.) × 10−3.",
keywords = "Charm Physics, e-e Experiments, Particle and Resonance Production",
author = "{BESIII Collaboration} and M. Ablikim and Achasov, {M. N.} and P. Adlarson and M. Albrecht and R. Aliberti and A. Amoroso and An, {M. R.} and Q. An and Bai, {X. H.} and Y. Bai and O. Bakina and {Baldini Ferroli}, R. and I. Balossino and Y. Ban and V. Batozskaya and D. Becker and K. Begzsuren and N. Berger and M. Bertani and D. Bettoni and F. Bianchi and J. Bloms and A. Bortone and I. Boyko and Briere, {R. A.} and A. Brueggemann and H. Cai and X. Cai and A. Calcaterra and Cao, {G. F.} and N. Cao and Cetin, {S. A.} and Chang, {J. F.} and Chang, {W. L.} and G. Chelkov and C. Chen and Chao Chen and G. Chen and Chen, {H. S.} and Chen, {M. L.} and Chen, {S. J.} and Chen, {S. M.} and Chen, {X. T.} and Chen, {X. R.} and Chen, {X. T.} and Chen, {Y. B.} and Chen, {Z. J.} and Cheng, {W. S.} and Muchnoi, {N. Yu} and Nikolaev, {I. B.}",
note = "Publisher Copyright: {\textcopyright} 2022, The Author(s).",
year = "2022",
month = sep,
doi = "10.1007/JHEP09(2022)242",
language = "English",
volume = "2022",
journal = "Journal of High Energy Physics",
issn = "1029-8479",
publisher = "Springer US",
number = "9",
}