Emergence of a complete heavy-quark spin symmetry multiplet: seven molecular pentaquarks in light of the latest LHCb analysis

Abstract

A recent analysis by the LHCb collaboration suggests the existence of three narrow pentaquark-like states --- the $P_c(4312)$,$P_c(4440)$ and $P_c(4457)$ --- instead of just one in the previous analysis (the $P_c(4450)$). The closeness of the $P_c(4312)$ to the $\bar{D}{\Sigma }_c$ threshold and the $P_c(4440)$/$P_c(4457)$ to the ${\bar{D}}^{\ast }{\Sigma }_c$ one suggests a molecular interpretation of these resonances. We show that these three pentaquark-like resonances can be naturally accommodated in a contact-range effective field theory description that incorporates heavy-quark spin symmetry. This description leads to the prediction of all the seven possible S-wave heavy antimeson-baryon molecules (that is, there should be four additional molecular pentaquarks in addition to the $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$), providing the first example of a heavy-quark spin symmetry molecular multiplet that is complete. If this is confirmed, it will not only give us an impressive example of the application of heavy-quark symmetries and effective field theories in hadron physics: it will also uncover a clear and powerful ordering principle for the molecular spectrum, reminiscent of the SU(3)-flavor multiplets to which the light hadron spectrum conforms.

Corresponds to the version to be published in Physical Review Letters; 4 pages, 1 table summarizing the results, the names of the scenarios have been exchanged to reflect their theoretical preference (scenario A now corresponds to the more likely scenario in pionless EFT)

References in corpus (10)

• Observation of a narrow pentaquark state, $P_c(4312{)}^{+}$, and of two-peak structure of the $P_c(4450{)}^{+}$
• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• The Heavy Quark Spin Symmetry Partners of the X(3872)
• Study of $P_c(4457)$, $P_c(4440)$, and $P_c(4312)$ in a quasipotential Bethe-Salpeter equation approach
• A Discussion on Triangle Singularities in the ${\Lambda }_b\to J/\psi K^{-}p$ Reaction
• Anatomy of the newly observed hidden-charm pentaquark states: $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$
• Heavy-quark spin and flavour symmetry partners of the X(3872) revisited: what can we learn from the one boson exchange model?
• Implications of heavy quark spin symmetry on heavy meson hadronic molecules
• Amplitude analysis of e+e- => Y(nS)pi+pi- at sqrt(s)=10.865 GeV
• Heavy-Quark Symmetry Partners of the Pc(4450) Pentaquark

Cited by in corpus (108)

• Pentaquark and Tetraquark states
• Electron-Ion Collider in China
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• Heavy quark spin symmetric molecular states from ${\bar{D}}^{(\ast )}{\Sigma }_c^{(\ast )}$ and other coupled channels in the light of the recent LHCb pentaquarks
• Interpretation of the LHCb $P_c$ States as Hadronic Molecules and Hints of a Narrow $P_c(4380)$
• Anatomy of the newly observed hidden-charm pentaquark states: $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$
• Tetra- and penta-quark structures in the constituent quark model
• Establishing the first hidden-charm pentaquark with strangeness
• Spectrum of the strange hidden charm molecular pentaquarks in chiral effective field theory
• $X_0(2866)$ as a $D^{\ast }{\bar{K}}^{\ast }$ molecular state
• Hidden-charm and hidden-bottom molecular pentaquarks in chiral perturbation theory
• Revisiting the nature of the $P_c$ pentaquarks
• Systematics of the heavy flavor hadronic molecules
• The $P_{cs}(4459)$ pentaquark from a combined effective field theory and phenomenological perspective
• Selected Science Opportunities for the EicC
• $P_{cs}(4459)$ and other possible molecular states from ${\Xi }_c^{(\ast )}{\bar{D}}^{(\ast )}$ and ${\Xi }_c^{\prime }{\bar{D}}^{(\ast )}$ interactions
• A Review on Partial-wave Dynamics with Chiral Effective Field Theory and Dispersion Relation
• Can the newly $P_{cs}(4459)$ be a strange hidden-charm ${\Xi }_c{\bar{D}}^{\ast }$ molecular pentaquarks?
• Possibility to study pentaquark states $P_c(4312),P_c(4440)$, and $P_c(4457)$ in $\gamma p\to J/\psi p$ reaction
• Can discovery of hidden charm strange pentaquark states help determine the spins of $P_c(4440)$ and $P_c(4457)$?
• Analysis of the $P_{cs}(4459)$ as the hidden-charm pentaquark state with QCD sum rules
• Magnetic dipole moments of the hidden-charm pentaquark states: $P_c(4440)$, $P_c(4457)$ and $P_{cs}(4459)$
• Coupled-channel effects of the ${\Sigma }_c^{(\ast )}{\bar{D}}^{(\ast )}$-${\Lambda }_c(2595)\bar{D}$ system and molecular nature of the $P_c$ pentaquark states from one-boson exchange model
• Study of the $DK$ interaction with femtoscopic correlation functions
• Structure and decays of hidden heavy pentaquarks
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• Magnetic moments of the hidden-charm strange pentaquark states
• Production of $P_{cs}(4459)$ from ${\Xi }_b$ decay
• Kinematical Cusp and Resonance Interpretations of the $X(2900)$
• Compositeness of S-wave weakly-bound states from next-to-leading order Weinberg's relations
• Investigation of hidden-charm pentaquarks with strangeness $S=-1$
• Doubly charmed molecular pentaquarks
• How to reveal the nature of three or more pentaquark states?
• Hidden charm pentaquark states in a diquark model
• Analysis of the hidden-charm pentaquark molecular states with strangeness and without strangeness via the QCD sum rules
• Axial meson exchange and the $Z_c(3900)$ and $Z_{cs}(3985)$ resonances as heavy hadron molecules
• The magnetic moment of $P_c(4312)$ as a $\bar{D}{\Sigma }_c$ molecular state
• Mass behavior of hidden-charm pentaquarks with open-strange inspired by these established $P_c$ molecular states
• Hidden and doubly heavy molecular states from interactions $D_{(s)}^{(\ast )}{\bar{D}}_s^{(\ast )}$/$B_{(s)}^{(\ast )}{\bar{B}}_s^{(\ast )}$ and $D_{(s)}^{(\ast )}{D}_s^{(\ast )}$/$B_{(s)}^{(\ast )}{B}_s^{(\ast )}$
• Analysis of the $P_{cs}(4338)$ and related pentaquark molecular states via the QCD sum rules
• $QQ\bar{s}\bar{s}$ tetraquarks in the chiral quark model
• Heavy quark spin multiplet structure of $P_c(4312)$, $P_c(4440)$, and $P_c(4457)$
• Spectrum of the doubly charmed molecular pentaquarks in chiral effective field theory
• Interpretations of the new LHCb $P_c(4337{)}^{+}$ pentaquark state
• Spectrum of the molecular pentaquarks
• Revealing the nature of hidden charm pentaquarks with machine learning
• Productions of $X(3872)$, $Z_c(3900)$, $X_2(4013)$, and $Z_c(4020)$ in $B_{(s)}$ decays offer strong clues on their molecular nature
• Heavy-hadron molecular spectrum from light-meson exchange saturation
• Compact hidden charm pentaquark states and QCD isomers
• Is $X(7200)$ the heavy anti-quark diquark symmetry partner of $X(3872)$?
• Photoproduction of strange hidden-charm and hidden-bottom states
• Experimental constraints on the properties of $P_c$ states
• Production of $P_c$ states in ${\Lambda }_b$ decays
• Hidden-charm pentaquark states through the current algebra: From their productions to decays
• Investigation of hidden-charm double strange pentaquark candidate $P_{css}$ via its mass and strong decays
• Isospin eigenstates of the color singlet-singlet type pentaquark states
• Hidden-charm pentaquark states in a mass splitting model
• Resonances in heavy meson - heavy baryon coupled-channel 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
• $P_c$ Resonances in the Compact Pentaquark Picture
• Exotic Hadrons at LHCb
• Three-body molecules $\bar{D}{\bar{D}}^{\ast }{\Sigma }_c$- understanding the nature of $T_{cc}$, $P_c(4312)$, $P_c(4440)$ and $P_c(4457)$
• Prompt production of the hidden charm pentaquarks in the LHC
• Recoupling Mechanism for exotic mesons and baryons
• Holographic charm and bottom pentaquarks II: Open and hidden decay widths
• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• Semi-inclusive lepto-production of hidden-charm exotic hadrons
• Identify the hidden charm pentaquark signal from non-resonant background in electron-proton scattering
• Search for hidden-charm pentaquark states in three-body final states
• Double Exotic States Productions in Pion and Kaon Induced Reactions
• Evidence supporting the existence of $P_c(4380{)}^{\pm }$ from the recent measurements of $B_s\to J/\psi p\bar{p}$
• Semi-inclusive electroproduction of hidden-charm and double-charm hadronic molecules
• Probing hidden-bottom pentaquarks in fixed-target collisions at the LHC
• Investigation of a candidate spin-$\frac{1}{2}$ hidden-charm triple strange pentaquark state $P_{csss}$
• Covalent hadronic molecules induced by shared light quarks
• Holographic charm and bottom pentaquarks III: Excitations through photo-production of heavy mesons
• Unravelling Pentaquarks with Born--Oppenheimer effective theory
• Doubly-Charm and Doubly-Bottom Pentaquark molecular States via the QCD sum rules
• Relations between strong decay widths of the $P_c$ pentaquarks in the SU(4) flavor-spin model
• Heavy quark spin partners of the $Y(4260)$ in coupled-channel formalism
• Molecular pentaquark states with open charm and bottom flavors
• Possible molecular states from interactions of charmed baryons
• Study on triple-hadron bound states with Gaussian expansion method
• Molecular states in $D_s^{(\ast )+}{\Xi }_c^{{(}^{\prime },\ast )}$ systems
• Molecular $P_{\psi }$ pentaquarks from light-meson exchange saturation
• Towards modeling the short-range interactions of hidden/open charm pentaquark molecular states
• Prospects for detecting the hidden-strange pentaquarklike state $N^{\ast }(2080)$ in the ${\pi }^{-}p\to \varphi n$ reaction
• Insights into the nature of the $P_{cs}(4459)$
• Determination of parameters of a potential model for tetraquark study by studying all S-wave mesons
• Study of the hidden charm pentaquarks ${\Lambda }_{c\bar{c}}$ above $4$ GeV
• Possible molecules of triple-heavy pentaquarks within the extended local hidden gauge formalism
• Strong decays of $P_{\psi }^N(4440{)}^{+}$ and $P_{\psi }^N(4457{)}^{+}$ within the Bethe-Salpeter framework
• Predicting possible molecular states of nucleons with ${\Xi }_c$, ${\Xi }_c^{\ast }$, and ${\Xi }_c^{\prime }$
• Finding Interaction Mechanism between Exotic Molecule and Conventional Hadron
• Multimodal Fragmentation of All-Heavy Pentaquarks: Uncertainty-Aware Predictions for Hadron Colliders
• Analysis of the hidden-charm pentaquark candidates in the $J/\psi p$ mass spectrum with QCD sum rules
• Hidden bottom pentaquark in the SU(5) version of the flavor-spin model
• Low-energy $N\varphi$ scattering from a pole-enhanced triangle diagram
• Molecular interpretation of the LHCb pentaquarks from an analysis of $J/\psi p$ spectrum
• Hadronic molecules and multiquark states
• The study of doubly charmed pentaquark $cc\bar{q}qq$ with the SU(3) symmetry
• $N^{\ast }$ states with hidden charm and a three-body nature
• Molecular pentaquarks composed of a ground-state octet baryon and a $P-$wave anticharmed meson
• Kaon-induced production of strange hidden-charm molecular pentaquarks $P_{\psi s}^{\Lambda }$ from proton
• Exotic hadrons associated with $b$-quark
• $P_c(4312{)}^{+}$ and $P_c(4337{)}^{+}$ as interfering ${\Sigma }_c\bar{D}$ and ${\Lambda }_c{\bar{D}}^{\ast }$ threshold cusps
• Role of the short-range dynamics in simultaneous interpretation of $P_{cs}$ pentaqurks via ${\Xi }_c^{(\prime ,\ast )}{\bar{D}}^{(\ast )}$ molecules
• Heavy-flavor multimodal fragmentation to $S$-wave pentacharms at next-generation hadron colliders