Possible triple-charm molecular pentaquarks from ${\Xi }_{cc}{D}_1/{\Xi }_{cc}{D}_2^{\ast }$ interactions

Abstract

In this work, we explore a systematic investigation on $S$-wave interactions between a doubly charmed baryon ${\Xi }_{cc}(3621)$ and a charmed meson in a $T$ doublet $(D_1,D_2^{\ast })$. We first analyze the possibility for forming ${\Xi }_{cc}{D}_1/{\Xi }_{cc}{D}_2^{\ast }$ bound states with the heavy quark spin symmetry. Then, we further perform a dynamical study on the ${\Xi }_{cc}{D}_1/{\Xi }_{cc}{D}_2^{\ast }$ interactions within a one-boson-exchange model by considering both the $S$-$D$ wave mixing and coupled channel effect. Finally, our numerical results conform the proposals from the heavy quark spin symmetry analysis: the ${\Xi }_{cc}{D}_1$ systems with $I(J^P)=$ $0(1/2^{+},3/2^{+})$ and the ${\Xi }_{cc}{D}_2^{\ast }$ systems with $I(J^P)=$ $0(3/2^{+},5/2^{+})$ can possibly be loose triple-charm molecular pentaquarks. Meanwhile, we also extend our model to the ${\Xi }_{cc}{\bar{D}}_1$ and ${\Xi }_{cc}{\bar{D}}_2^{\ast }$ systems, and our results indicate the isoscalars of ${\Xi }_{cc}{\bar{D}}_1$ and ${\Xi }_{cc}{\bar{D}}_2^{\ast }$ can be possible molecular candidates.

10 pages, 5 figures, Accepted by PRD

References in corpus (6)

• Observation of the doubly charmed baryon ${\Xi }_{cc}^{++}$
• Are Y(4260) and {\rm Z${}_2^{+}$(4250)} ${\mathrm{D}}_1\mathrm{D}$ or ${\mathrm{D}}_0{\mathrm{D}}^{\ast }$ Hadronic Molecules?
• Hidden charm N and Delta resonances with heavy-quark symmetry
• Charmless Hadronic B Decays into a Tensor Meson
• Prediction of triple-charm molecular pentaquarks
• Deuteron-like states composed of two doubly charmed baryons

Cited by in corpus (6)

• Pentaquark and Tetraquark states
• Emergence of molecular-type characteristic spectrum of hidden-charm pentaquark with strangeness embodied in the $P_{\psi s}^{\Lambda }(4338)$ and $P_{cs}(4459)$
• Prediction of hidden-charm pentaquarks with double strangeness
• Hidden-charm pentaquarks with triple strangeness due to the ${\Omega }_c^{(\ast )}{\bar{D}}_s^{(\ast )}$ interactions
• $QQ\bar{s}\bar{s}$ tetraquarks in the chiral quark model
• Investigating the M1 radiative decay behaviors and the magnetic moments of the predicted triple-charm molecular-type pentaquarks