Study of intermediate two-body decays in $\bar{B}^0\to \Sigma_c(2455)^{0}\bar{p}\pi^{+}$

We present results of a detailed study of the three-body B¯0→Σc(2455)0p¯π+ decay. A significant enhancement of signal events is observed in the p¯π+ invariant mass distribution near 1.5 GeV/c2 that is consistent with the presence of an intermediate baryonic resonance N¯0 , where N¯0 is the N¯(1440)0P11 or N¯(1535)0S11 state, or an admixture of the two states. We measure the product B(B¯0→Σc(2455)0N¯0)×B(N¯0→p¯π+)=(0.80±0.15(stat.)±0.14(syst.)±0.21)×10−4 , where the last error is due to the uncertainty in B(Λc+→pK−π+) . The significance of the signal is 6.1 standard deviations. This analysis is based on a data sample of 357 fb −1 , accumulated at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider.

13.20.He
B-meson
Charmed baryon
N 0 P 11 and S 11 resonances
N0 P11 and S11 resonances
[formula omitted][formula omitted] and [formula omitted] resonances
electron positron: annihilation
B: pair production
anti-B0: hadronic decay
baryon resonance: intermediate state

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Study of intermediate two-body decays in Bˉ0→Σc(2455)0pˉπ+\bar{B}^0\to \Sigma_c(2455)^{0}\bar{p}\pi^{+}Bˉ0→Σc​(2455)0pˉ​π+

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Study of intermediate two-body decays in $\bar{B}^0\to \Sigma_c(2455)^{0}\bar{p}\pi^{+}$