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  • Ablikim, M., et al. (author)
  • Observation of an a(0)-like State with Mass of 1.817 GeV in the Study of D-S(+) -> (KSK+)-K-0 pi(0) Decays
  • 2022
  • In: Physical Review Letters. - : American Physical Society. - 0031-9007 .- 1079-7114. ; 129:18
  • Journal article (peer-reviewed)abstract
    • Using e(+)e(-) annihilation data corresponding to an integrated luminosity of 6.32 fb(-1) collected at center-of-mass energies between 4.178 and 4.226 GeV with the BESIII detector, we perform the first amplitude analysis of the decay D-s(+) -> (KSK+)-K-0 pi(0) and determine the relative branching fractions and phases for intermediate processes. We observe an a(0)-like state with mass of 1.817 GeV in its decay to (KSK+)-K-0 for the first time. In addition, we measure the ratio {B[D-s(+) -> (K*) over bar (892)K-0(+)]/B[D-s(+) -> (K-0) over bar K*(892)(+)]} to be 2.35(-0.23stat)(+0.42) +/- 0.10(syst). Finally, we provide a precision measurement of the absolute branching fraction B(D-s(+) -> (KSK+)-K-0 pi(0))=(1.46 +/- 0.06(stat) +/- 0.05(syst))%.
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Type of publication
journal article (1)
Type of content
peer-reviewed (1)
Author/Editor
Adlarson, Patrik (1)
Kupsc, Andrzej (1)
Wolke, Magnus (1)
Ablikim, M. (1)
Johansson, Tord (1)
Schönning, Karin, 19 ... (1)
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Thorén, Viktor (1)
Zou, J. H. (1)
Pettersson, Jean (1)
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University
Uppsala University (1)
Language
English (1)
Research subject (UKÄ/SCB)
Natural sciences (1)
Year
2022 (1)

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