Observation of the Singly Cabibbo-Suppressed Decay D+ωπ+D^{+}\to\omega\pi^{+} and Evidence for D0ωπ0D^{0}\to\omega\pi^{0}

Collaboration
Dec 22, 2015
7 pages
Published in:
  • Phys.Rev.Lett. 116 (2016) 8, 082001
  • Published: Feb 23, 2016
e-Print:
Experiments:

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Abstract: (APS)
Based on 2.93  fb-1 e+e- collision data taken at center-of-mass energy of 3.773 GeV by the BESIII detector, we report searches for the singly Cabibbo-suppressed decays D+→ωπ+ and D0→ωπ0. A double tag technique is used to measure the absolute branching fractions B(D+→ωπ+)=(2.79±0.57±0.16)×10-4 and B(D0→ωπ0)=(1.17±0.34±0.07)×10-4, with statistical significances of 5.5σ and 4.1σ, where the first and second uncertainties are statistical and systematic, respectively.
  • electron positron: annihilation
  • D: hadronic decay
  • D: rare decay
  • D+: branching ratio: measured
  • D0: branching ratio: measured
  • statistical
  • D: decay modes
  • BES
  • Beijing Stor
  • experimental results