Volume 340 -
The 39th International Conference on High Energy Physics
(ICHEP2018) -
Parallel: Strong Interactions and Hadron Physics
Recent results on charmed baryons at Belle
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Published on:
August 02, 2019
Abstract
We report measurement of the decays of the $\Omega_c^0$ charmed baryon into hadronic final states and observe excited $\Omega_c^*$ charmed baryons in the decay mode $\Xi_c^+K^-$ including $\Omega_c(3000)$, $\Omega_c(3050)$, $\Omega_c(3066)$ and $\Omega_c(3090)$. In addition, we report the first observation of the $\Xi_c(2930)^0$ charmed-strange baryon with a significance greater than $5\sigma$ in its decay to $K^-\Lambda_c^+$ in $B^-\to K^-\Lambda_c^+\bar\Lambda_c^-$ decays. The branching fractions of the decays $\Lambda_c^+\to\Sigma^+\pi^-\pi^+$, $\Lambda_c^+\to\Sigma^+\pi^+\pi^0$ and $\Lambda_c^+\to\Sigma^+\pi^0\pi^0$ are also measured.
The analyses are based on a data set recorded by the Belle detector from $e^+e^-$ collisions produced by the KEKB collider.
We report measurement of the decays of the $\Omega_c^0$ charmed baryon into hadronic final states and observe excited $\Omega_c^*$ charmed baryons in the decay mode $\Xi_c^+K^-$ including $\Omega_c(3000)$, $\Omega_c(3050)$, $\Omega_c(3066)$ and $\Omega_c(3090)$. In addition, we report the first observation of the $\Xi_c(2930)^0$ charmed-strange baryon with a significance greater than $5\sigma$ in its decay to $K^-\Lambda_c^+$ in $B^-\to K^-\Lambda_c^+\bar\Lambda_c^-$ decays. The branching fractions of the decays $\Lambda_c^+\to\Sigma^+\pi^-\pi^+$, $\Lambda_c^+\to\Sigma^+\pi^+\pi^0$ and $\Lambda_c^+\to\Sigma^+\pi^0\pi^0$ are also measured.
The analyses are based on a data set recorded by the Belle detector from $e^+e^-$ collisions produced by the KEKB collider.
DOI: https://doi.org/10.22323/1.340.0549
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Copyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.