New structure around 3250 MeV in the baryonic B decay and the $D_0^{\ast }(2400)N$ molecular hadron

Abstract

In this work, we first propose the isovector $n{D}_0^{\ast }(2400{)}^0$ molecular state to explain the enhancement structure around 3250 MeV ($X_c(3250{)}^0$) in the ${\Sigma }_c^{++}{\pi }^{-}{\pi }^{-}$ invariant mass spectrum newly observed by the BaBar Collaboration. Under this molecular state configuration, both the analysis of the mass spectrum and the study of its dominant decay channel can well depict its resonance parameters measured by BaBar. Our investigation also shows that the isovector $n{D}_0^{\ast }(2400{)}^0$ molecular state can decay into ${\Sigma }_c^{++}{\pi }^{-}{\pi }^{-}$, which is consistent with the experimental observation. These studies provide the direct support to the isovector $n{D}_0^{\ast }(2400{)}^0$ molecular state assignment to $X_c(3250{)}^0$.

5 pages, 1 table, 4 figures. Accepted by Eur. Phys. J. C

Cited by in corpus (13)

• $P_{cs}(4459)$ and other possible molecular states from ${\Xi }_c^{(\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{\prime }{\bar{D}}^{(\ast )}$ interactions
• Study of the $B{\bar{B}}^{\ast }/D{\bar{D}}^{\ast }$ bound states in a Bethe-Salpeter approach
• Molecular picture for $X_0(2900)$ and $X_1(2900)$
• The internal structures of the nucleon resonances $N(1875)$ and $N(2120)$
• Correlation of the hidden-charm molecular tetraquarks and the charmoniumlike structures existing in the $B\to XYZ+K$
• $P_{\psi s}^{\Lambda }(4459)$ and $P_{\psi s}^{\Lambda }(4338)$ as molecular states in $J/\psi \Lambda$ invariant mass spectra
• Study of $X_c(3250)$ as a $D_0^{\ast }(2400)N$ molecular state
• Hidden-bottom molecular states from ${\Sigma }_b^{(\ast )}{B}^{(\ast )}-{\Lambda }_b{B}^{(\ast )}$ interaction
• Systematical study of ${\Omega }_c$-like molecular states from interactions ${\Xi }_c^{{(}^{\prime },\ast )}{\bar{K}}^{(\ast )}$ and ${\Xi }^{(\ast )}{D}^{(\ast )}$
• Predicting exotic molecular states composed of nucleon and P-wave charmed meson
• Possible molecular states from the $N\Delta$ interaction
• Possible molecular states from interactions of charmed baryons
• Kaon-induced production of strange hidden-charm molecular pentaquarks $P_{\psi s}^{\Lambda }$ from proton