Abstract
The baryonic decay $D^+_s\rightarrow p\bar{n}$ is observed, and the corresponding branching fraction is measured to be $(1.21\pm0.10\pm0.05)\times10^{-3}$, where the first uncertainty is statistical and second systematic. The data sample used in this analysis was collected with the BESIII detector operating at the BEPCII $e^+e^-$ double-ring collider with a center-of-mass energy of 4.178~GeV and an integrated luminosity of 3.19~fb$^{-1}$. The result confirms the previous measurement by the CLEO Collaboration and is of greatly improved precision, which may deepen our understanding of the dynamical enhancement of the W-annihilation topology in the charmed meson decays.
Highlights
Lahore, Defence Road, Off Raiwind Road, 54000 Lahore, Pakistan 9G.I
second systematic. The data sample used in this analysis was collected with the BESIII detector operating at the
The result confirms the previous measurement by the CLEO Collaboration
Summary
J. Li,[43] Kang Li,[13] Ke Li,[1] Lei Li,[3] P. H. Liu,[38] Fang Liu,[1] Feng Liu,[6] H. Y. Liu,[30] Ke Liu,[6] L. A. Liu,[1,42,46] Zhiqing Liu,[25]. Wang,[36] Meng Wang,[1,46] P. Y. Wang,[1] Zongyuan Wang,[1,46] T. T. Zhang,[52,42] Yang Zhang,[1] Yao Zhang,[1] Yu Zhang,[46] Z. Z. Zhao,[1,42] Lei Zhao,[52,42] Ling Zhao,[1] M.
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