Amplitude analysis and branching fraction measurement of the decay Ds+ → π + π 0 π 0

The BESIII Collaboration

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Abstract

Using a data set corresponding to an integrated luminosity of 6.32 fb−1 recorded by the BESIII detector at center-of-mass energies between 4.178 and 4.226 GeV, an amplitude analysis of the decay Ds+ → π+π0π0 is performed, and the relative fractions and phases of different intermediate processes are determined. The absolute branching fraction of the decay Ds+ → π+π0π0 is measured to be (0.50 ± 0.04stat ± 0.02syst)%. The absolute branching fraction of the intermediate process Ds+ → f0(980)π+, f0(980) → π0π0 is determined to be (0.28 ± 0.04stat ± 0.04syst)%. [Figure not available: see fulltext.]

Original languageEnglish (US)
Article number52
JournalJournal of High Energy Physics
Volume2022
Issue number1
DOIs
StatePublished - Jan 2022
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2022, The Author(s).

Keywords

  • Branching fraction
  • Charm physics
  • e-e Experiments

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