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Observation of the Singly Cabibbo-Suppressed Decay $D^+\to\omega\pi^+$ and Evidence for $D^0\to\omega\pi^0$

Submit Time: 2016-09-12
Author: Ablikim, M. and others 1 ;
Institute: 1.BESIII Collaboration;

Abstracts

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, respectively. We also present measurements of the absolute branching fractions for the related?ηπ?decay modes. We find?B(D+→ηπ+)=(3.07±0.22±0.13)×10?3?and?B(D0→ηπ0)=(0.65±0.09±0.04)×10?3, which are consistent with the current world averages. The first and second uncertainties are statistical and systematic, respectively.
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Recommended references: Ablikim, M. and others.(2016).Observation of the Singly Cabibbo-Suppressed Decay $D^+\to\omega\pi^+$ and Evidence for $D^0\to\omega\pi^0$.[ChinaXiv:201609.00826] (Click&Copy)
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[V1] 2016-09-12 09:01:31 chinaXiv:201609.00826V1 Download
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