Study of the charmed baryonic decays $\bar{B}^0\to\Sigma_{\mathrm{c}}^{++}\bar{p}\pi^-$ and $\bar{B}^0\to\Sigma_{\mathrm{c}}^{0}\bar{p}\pi^+$

We study the three-body charmed baryonic decays $\bar{B}^0\to\Sigma_{\mathrm{c}}^{++}\bar{p}\pi^-$ and $\bar{B}^0\to\Sigma_{\mathrm{c}}^{0}\bar{p}\pi^+$ in the four-body final state $\bar{B}^0\to\Lambda_{\mathrm{c}}^{+}\bar{p}\pi^+\pi^-$, based on a data sample of 357 fb$^{-1}$ accumulated at the $\Upsilon(4S)$ with the Belle detector at the KEKB asymmetric $e^+e^-$ collider. We measure branching fractions: ${\cal B} (\bar{B}^0\to\Sigma_{\mathrm{c}}(2455)^{++}\bar{p}\pi^-)$=(\nbrlcpiapp) $\times 10^{-4}$, ${\cal B}(\bar{B}^0\to\Sigma_{\mathrm{c}}(2455)^{0}\bar{p}\pi^+)$=(\nbrlcpiazr )$\times10^{-4}$, ${\cal B}(\bar{B}^0\to\Sigma_{\mathrm{c}}(2520)^{++}\bar{p}\pi^-)$=(\nbrlcpibp p)$\times 10^{-4}$ with statistical significances of 13.1, 9.5, 7.2$ \sigma$'s, respectively, and ${\cal B}(\bar{B}^0\to\Sigma_{\mathrm{c}}(2520)^{0}\bar{p}\pi^+)