Do the $P_c^{+}$ Pentaquarks Have Strange Siblings?

Abstract

The recent LHCb discovery of states $P_c^{+}(4380)$, $P_c^{+}(4450)$, believed to be $c\bar{c}uud$ pentaquark resonances, begs the question of whether equivalent states with $c\bar{c}\to s\bar{s}$ exist, and how they might be produced. The precise analogue to the $P_c^{+}$ discovery channel ${\Lambda }_b\to J/\psi K^{-}p$, namely, ${\Lambda }_c\to \varphi {\pi }^{0}p$, is feasible for this study and indeed is less Cabibbo-suppressed, although its limited phase space suggests that evidence of a $s\bar{s}uud$ resonance $P_s^{+}$ would be confined to the kinematic endpoint region.

5 pages, 1 pdf figure, REVTeX. Version accepted for publication in Phys. Rev. D

References in corpus (25)

• Observation of $J/\psi p$ resonances consistent with pentaquark states in ${\Lambda }_b^0\to J/\psi K^{-}p$ decays
• Prediction of narrow $N^{\ast }$ and ${\Lambda }^{\ast }$ resonances with hidden charm above 4 GeV
• Observation of the resonant character of the $Z(4430{)}^{-}$ state
• New Exotic Meson and Baryon Resonances from Doubly-Heavy Hadronic Molecules
• Identifying exotic hidden-charm pentaquarks
• How to reveal the exotic nature of the P_c(4450)
• The New Pentaquarks in the Diquark Model
• Towards exotic hidden-charm pentaquarks in QCD
• The Pentaquark Candidates in the Dynamical Diquark Picture
• A New Picture for the Formation and Decay of the Exotic $XYZ$ Mesons
• Phenomenology of $P_c(4380{)}^{+}$, $P_c(4450{)}^{+}$ and related states
• Formation of hidden-charm pentaquarks in photon-nucleon collisions
• Photoproduction of hidden charm pentaquark states $P_c^{+}(4380)$ and $P_c^{+}(4450)$
• Photoproduction of Exotic Baryon Resonances
• Is pentaquark doublet a hadronic molecule?
• On the pentaquark candidates $P_c^{+}(4380)$ and $P_c^{+}(4450)$ within the soliton picture of baryons
• Data analysis techniques, differential cross sections, and spin density matrix elements for the reaction $\gamma p\to \varphi p$
• Non-strange and strange pentaquarks with hidden charm
• Pentaquarks and resonances in the $pJ/\psi$ spectrum
• The QCD Dynamics of Tetraquark Production
• Bottom Baryon Decays to Pseudoscalar Meson and Pentaquark
• Tetraquark Cusp Effects from Diquark Pair Production
• Pentaquarks from intrinsic charms in ${\Lambda }_b$ decays
• Testing the ${\chi }_{c1}p$ composite nature of the $P_c(4450)$
• Diquark Substructure in $\varphi$ Photoproduction

Cited by in corpus (35)

• The hidden-charm pentaquark and tetraquark states
• Heavy-Quark QCD Exotica
• Pentaquark states in a diquark-triquark model
• Analysis of the $P_c(4312)$, $P_c(4440)$, $P_c(4457)$ and related hidden-charm pentaquark states with QCD sum rules
• ${\chi }_{c0}^{}(3915)$ As the Lightest $c\bar{c}s\bar{s}$ State
• Magnetic moments of the hidden-charm pentaquark states
• The ${\Lambda }_b\to J/\psi K^0\Lambda$ reaction and a hidden-charm pentaquark state with strangeness
• Strong decay mode $J/\psi p$ of hidden charm pentaquark states $P_c^{+}(4380)$ and $P_c^{+}(4450)$ in ${\Sigma }_c{\bar{D}}^{\ast }$ molecular scenario
• Analysis of the ${\frac{1}{2}}^{\pm }$ pentaquark states in the diquark-diquark-antiquark model with QCD sum rules
• Analysis of the doubly heavy baryon states and pentaquark states with QCD sum rules
• Analysis of the $P_{cs}(4459)$ as the hidden-charm pentaquark state with QCD sum rules
• Hidden-charm pentaquarks and their hidden-bottom and $B_c$-like partner states
• Triangular singularity and a possible $\varphi p$ resonance in the ${\Lambda }_c^{+}\to {\pi }^0\varphi p$ decay
• The magnetic moment of $P_c(4312)$ as a $\bar{D}{\Sigma }_c$ molecular state
• Photoproduction of hidden-bottom pentaquark and related topics
• Spectrum of the molecular pentaquarks
• Heavy pentaquark states and a novel color structure
• Compact hidden charm pentaquark states and QCD isomers
• Search for ${\Lambda }_c^{+}\to \varphi p{\pi }^0$ and branching fraction measurement of ${\Lambda }_c^{+}\to K^{-}{\pi }^{+}p{\pi }^0$
• The hadronic coupling constants of the lowest hidden-charm pentaquark state with the QCD sum rules in rigorous quark-hadron duality
• N* Experiments and their Impact on Strong QCD Physics
• Exotic pentaquark states with the $qqQQ\bar{Q}$ configuration
• Photo- and electro-production of narrow exotic states: from light quarks to charm and up to bottom
• Nucleon Resonance Physics
• How tetraquarks can generate a second chiral phase transition
• Simple estimates of the masses of pentaquarks with hidden beauty or strangeness
• Observation of ${\Lambda }_c^{+}\to \Lambda a_0(980{)}^{+}$ and Evidence for $\Sigma (1380{)}^{+}$ in ${\Lambda }_c^{+}\to \Lambda {\pi }^{+}\eta$
• Pomeron, nucleon-resonance, and $(0^{+},0^{-},1^{+})$-meson contributions in $\varphi$-meson photoproduction
• Spectrum and Structure of Excited Baryons with CLAS
• QCD sum rule study for hidden-strange pentaquarks
• Pentaquarks in semileptonic ${\Lambda }_b$ decays
• The axial charges of the hidden-charm pentaquark states
• Baryons and baryoniums in the perspective of QCD sum rules
• Propagators of resonances and rescatterings of the decay products
• Strange pentaquark molecules in QCD sum rules