Five-flavor molecular pentaquarks in the ${\Xi }_b^{(\prime ,\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{(\prime ,\ast )}{B}^{(\ast )}$ systems

Abstract

The discovery of hidden-charm pentaquarks and open-flavor tetraquarks motivates the search for even more exotic hadron configurations. In this work, we investigate genuinely exotic molecular pentaquark candidates comprising five different flavors, focusing on the ${\Xi }_b^{(\prime ,\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{(\prime ,\ast )}{B}^{(\ast )}$ systems. Employing the one-boson-exchange model with the $S$-$D$ wave mixing and coupled-channel dynamics, we identify the most promising molecular pentaquark candidates comprising five different flavors. These include the ${\Xi }_b\bar{D}$, ${\Xi }_b^{\prime }\bar{D}$, ${\Xi }_{c}B$, and ${\Xi }_c^{\prime }B$ states with $I(J^P)=0(1/2^{-})$, the ${\Xi }_b{\bar{D}}^{\ast }$, ${\Xi }_b^{\prime }{\bar{D}}^{\ast }$, ${\Xi }_c{B}^{\ast }$, and ${\Xi }_c^{\prime }{B}^{\ast }$ states with $I(J^P)=0(1/2^{-},3/2^{-})$, the ${\Xi }_b^{\ast }\bar{D}$ and ${\Xi }_c^{\ast }B$ states with $I(J^P)=0(3/2^{-})$, as well as the ${\Xi }_b^{\ast }{\bar{D}}^{\ast }$ and ${\Xi }_c^{\ast }{B}^{\ast }$ states with $I(J^P)=0(1/2^{-},3/2^{-},5/2^{-})$. Importantly, these loosely bound states exhibit pronounced spin splittings across different total angular momentum configurations after incorporating the spin-dependent interactions or the channel couplings. In addition, we identify several possible isovector molecular pentaquark candidates within the ${\Xi }_b^{(\prime ,\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{(\prime ,\ast )}{B}^{(\ast )}$ systems. Our predictions provide clear targets for experimental searches at facilities such as LHCb and Belle II, where the unique five-flavor quark configuration offers a distinctive experimental signature.

arXiv comment15 pages, 2 figures, and 8 tables

References in corpus (99)

• Modern Theory of Nuclear Forces
• Hadronic molecules
• The hidden-charm pentaquark and tetraquark states
• Observation of $J/\psi p$ resonances consistent with pentaquark states in ${\Lambda }_b^0\to J/\psi K^{-}p$ decays
• The $XYZ$ states: experimental and theoretical status and perspectives
• Non-Standard Heavy Mesons and Baryons, an Experimental Review
• Pentaquark and Tetraquark states
• Heavy-Quark QCD Exotica
• Phenomenology of Heavy Meson Chiral Lagrangians
• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• An updated review of the new hadron states
• Hidden Local Symmetry at Loop -- A New Perspective of Composite Gauge Boson and Chiral Phase Transition
• From the Deuteron to Deusons, an Analysis of Deuteronlike Meson-Meson Bound States
• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Exotic Hadrons with Heavy Flavors -X, Y, Z and Related States-
• New Exotic Meson and Baryon Resonances from Doubly-Heavy Hadronic Molecules
• Identifying exotic hidden-charm pentaquarks
• Dynamically generated $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances in the hidden charm sector around 4.3 GeV
• Evidence of a $J/\psi \Lambda$ structure and observation of excited ${\Xi }^{-}$ states in the ${\Xi }_b^{-}\to J/\psi \Lambda K^{-}$ decay
• Chiral perturbation theory for heavy hadrons and chiral effective field theory for heavy hadronic molecules
• The possible hidden-charm molecular baryons composed of anti-charmed meson and charmed baryon
• Strong LHCb evidence supporting the existence of the hidden-charm molecular pentaquarks
• Four-Quark Hadrons: an Updated Review
• A survey of heavy-heavy hadronic molecules
• Amplitude analysis of the $B^{+}\to D^{+}{D}^{-}{K}^{+}$ decay
• Coupled-channel study of crypto-exotic baryons with charm
• Are Y(4260) and {\rm Z${}_2^{+}$(4250)} ${\mathrm{D}}_1\mathrm{D}$ or ${\mathrm{D}}_0{\mathrm{D}}^{\ast }$ Hadronic Molecules?
• Sigma_c Dbar and Lambda_c Dbar states in a chiral quark model
• Exotic hadrons: review and perspectives
• Model-independent study of structure in $B^{+}\to D^{+}{D}^{-}{K}^{+}$ decays
• An overview of $XYZ$ new particles
• Evidence for a $B_s^0{\pi }^{\pm }$ State
• Observation of a $J/\psi \Lambda$ resonance consistent with a strange pentaquark candidate in $B^{-}\to J/\psi \Lambda \bar{p}$ decays
• Nucleon Resonances with Hidden Charm in Coupled-Channel Models
• Establishing the first hidden-charm pentaquark with strangeness
• Hidden-charm pentaquarks and $P_c$ states
• Prediction of hidden charm strange molecular baryon states with heavy quark spin symmetry
• Light Vector Resonances in the Effective Chiral Lagrangian for Heavy Mesons
• Spectrum of the strange hidden charm molecular pentaquarks in chiral effective field theory
• On Deusons or Deuteronlike Meson-Meson Bound States
• $X_0(2866)$ as a $D^{\ast }{\bar{K}}^{\ast }$ molecular state
• Search for structure in the $B_s^0{\pi }^{\pm }$ invariant mass spectrum
• Molecular picture for the $X_0(2866)$ as a $D^{\ast }{\bar{K}}^{\ast }$ $J^P=0^{+}$ state and related $1^{+},2^{+}$ states
• Systematics of the heavy flavor hadronic molecules
• The $P_{cs}(4459)$ pentaquark from a combined effective field theory and phenomenological perspective
• $X_0(2900)$ and $X_1(2900)$: hadronic molecules or compact tetraquarks
• $P_{cs}(4459)$ and other possible molecular states from ${\Xi }_c^{(\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{\prime }{\bar{D}}^{(\ast )}$ interactions
• Possible strange hidden-charm pentaquarks from ${\Sigma }_c^{(\ast )}{\bar{D}}_s^{\ast }$ and ${\Xi }_c^{{(}^{\prime },\ast )}{\bar{D}}^{\ast }$ interactions
• Non-strange and strange pentaquarks with hidden charm
• Molecular nature of $P_{cs}(4459)$ and its heavy quark spin partners
• Can the newly $P_{cs}(4459)$ be a strange hidden-charm ${\Xi }_c{\bar{D}}^{\ast }$ molecular pentaquarks?
• Analysis of the $P_{cs}(4459)$ as the hidden-charm pentaquark state with QCD sum rules
• Searching for possible ${\Omega }_c-$like molecular states from ${\Xi }_c^{\ast }\bar{K}/{\Xi }_c{\bar{K}}^{\ast }/{\Xi }_c^{\prime }{\bar{K}}^{\ast }$ interaction
• Search for the X(5568) state decaying into ${\mathrm{B}}_{\mathrm{s}}^0{\pi }^{\pm }$ in proton-proton collisions at $\sqrt{s}=$ 8 TeV
• The $X_0(2900)$ and its heavy quark spin partners in molecular picture
• Probing new types of $P_c$ states inspired by the interaction between an $S$-wave charmed baryon and an anticharmed meson in a $\bar{T}$ doublet state
• A possible global group structure for exotic states
• Prediction of triple-charm molecular pentaquarks
• A new look at the $P_{cs}$ states from a molecular perspective
• Heavy-strange meson molecules and possible candidates $D_{s0}^{\ast }(2317)$, $D_{s1}(2460)$, and $X_0(2900)$
• New scalar resonance $X_0(2900)$ as a ${\overline{D}}^{\ast }{K}^{\ast }$ molecule: Mass and width
• Emergence of molecular-type characteristic spectrum of hidden-charm pentaquark with strangeness embodied in the $P_{\psi s}^{\Lambda }(4338)$ and $P_{cs}(4459)$
• A search for the exotic meson $X(5568)$ with the Collider Detector at Fermilab
• Search for a Structure in the $B_s^0{\pi }^{\pm }$ Invariant Mass Spectrum with the ATLAS Experiment
• Prediction of hidden-charm pentaquarks with double strangeness
• New strange pentaquarks
• Strange hidden-charm $P_{\psi s}^{\Lambda }(4459)$ and $P_{\psi s}^{\Lambda }(4338)$ pentaquarks and additional $P_{\psi s}^{\Lambda }$, $P_{\psi s}^{\Sigma }$ and $P_{\psi ss}^N$ candidates in a quark model approach
• Molecular picture for $X_0(2900)$ and $X_1(2900)$
• Exotic triple-charm deuteron-like hexaquarks
• Investigation of hidden-charm pentaquarks with strangeness $S=-1$
• The double thresholds distort the lineshapes of the $P_{\psi s}^{\Lambda }(4338{)}^0$ resonance
• Hidden-charm pentaquarks with triple strangeness due to the ${\Omega }_c^{(\ast )}{\bar{D}}_s^{(\ast )}$ interactions
• Review of the QCD sum rules for exotic states
• Analysis of the hidden-charm pentaquark molecular states with strangeness and without strangeness via the QCD sum rules
• Pole determination of $P_{\psi s}^{\Lambda }(4338)$ and possible $P_{\psi s}^{\Lambda }(4255)$ in $B^{-}\to J/\psi \Lambda \bar{p}$
• Mass behavior of hidden-charm pentaquarks with open-strange inspired by these established $P_c$ molecular states
• Exotic double-charm molecular states with hidden or open strangeness and around $4.5\sim 4.7$ GeV
• Analysis of the $P_{cs}(4338)$ and related pentaquark molecular states via the QCD sum rules
• Investigating new type of doubly-charmed molecular tetraquarks composed of the charmed meson in $H$-doublet and the charmed meson in $T$-doublet
• Correlation of the hidden-charm molecular tetraquarks and the charmoniumlike structures existing in the $B\to XYZ+K$
• Heavy flavor molecular states with strangeness
• Newly observed $X(4630)$: a new charmoniumlike molecule
• $P_{\psi s}^{\Lambda }(4459)$ and $P_{\psi s}^{\Lambda }(4338)$ as molecular states in $J/\psi \Lambda$ invariant mass spectra
• Surveying the mass spectra and the electromagnetic properties of the ${\Xi }_c^{(\prime ,\ast )}{D}^{(\ast )}$ molecular pentaquarks
• X_1(2900) as a D_1 K molecule
• A new group of doubly charmed molecule with $T$-doublet charmed meson pair
• Study of isospin eigenstates of the pentaquark molecular states with strangeness
• Higher molecular $P_{\psi s}^{\Lambda /\Sigma }$ pentaquarks arising from the ${\Xi }_c^{(\prime ,\ast )}{\bar{D}}_1/{\Xi }_c^{(\prime ,\ast )}{\bar{D}}_2^{\ast }$ interactions
• The new $P_{\mathrm{cs}}(4459)$, $Z_{\mathrm{cs}}(3985)$, $Z_{\mathrm{cs}}(4000)$ and $Z_{\mathrm{cs}}(4220)$ and the possible emergence of flavor pentaquark octets and tetraquark nonets
• Unified description of the $Qs\bar{q}\bar{q}$ molecular bound states, molecular resonances and compact tetraquark states in the quark potential model
• New type of doubly charmed molecular pentaquarks containing most strange quarks: Mass spectra, radiative decays, and magnetic moments
• Prediction of possible $D{K}_1$ bound states
• Studying the ${\bar{D}}_{1}K$ molecule in the Bethe-Salpeter equation approach
• Looking for the exotic $X_0(2866)$ and its $J^P=1^{+}$ partner in the ${\bar{B}}^0\to D^{(\ast )+}{K}^{-}{K}^{(\ast )0}$ reactions
• Colloquium: Hadron Production in Open-charm Meson Pair at $e^{+}{e}^{-}$ Collider
• Hidden-flavor pentaquarks
• Molecular pentaquark states with open charm and bottom flavors
• Molecular states in $D_s^{(\ast )+}{\Xi }_c^{{(}^{\prime },\ast )}$ systems
• Molecular $P_{\psi }$ pentaquarks from light-meson exchange saturation