Double strangeness pentaquarks and other exotic hadrons in the ${\Xi }_b\to \Xi J/\Psi \varphi$ decay

Abstract

We study the possibility that four $\Xi$ resonances $(\Xi (1620)$, $\Xi (1690)$, $\Xi (1820)$, $\Xi (1950))$ could correspond to pentaquark states, in the form of meson-baryon bound systems. We also explore the possible existence of doubly strange pentaquarks with hidden charm $(P_{css})$ and find two candidates structured in a similar form, at energies of $4493\mathrm{MeV}$ and $4630\mathrm{MeV}$. The meson-baryon interaction is built from t-channel meson exchange processes which are evaluated using effective Lagrangians. Moreover we analyse the ${\Xi }_b\to \Xi J/\psi \varphi$ decay process, which permits exploring the existence of the heavy double strange pentaquark, as well as other exotic hadrons, in the three different two-body invariant mass spectra of the emitted particles. In the $J/\psi \varphi$ mass spectrum, we analyse the nature of the $X(4140)$ and $X(4160)$ resonances. In the $J/\psi \Xi$ invariant mass spectrum, we study the signal produced by the doubly strange pentaquark, where we conclude that it has a good chance to be detected in this reaction if its mass is around $4580-4680\mathrm{MeV}$. Finally, in the $\varphi \Xi$ spectrum we study the likelihood to detect the $\Xi (2500)$ state.

24 pages, 29 figures

References in corpus (17)

• 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
• Evidence for a Narrow Near-Threshold Structure in the $J/\psi \varphi$ Mass Spectrum in $B^{+}\to J/\psi \varphi K^{+}$ Decays
• Search for new charmonium states in the processes e+ e- --> J/psi D(*) D(*) at sqrt{s} ~ 10.6 GeV
• Hadronic molecule structure of the Y(3940) and Y(4140)
• Hidden charm N and Delta resonances with heavy-quark symmetry
• Predictions for the ${\Lambda }_b\to J/\psi \Lambda (1405)$ decay
• Prediction of hidden-charm pentaquarks with double strangeness
• 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
• Accessing the strong interaction between $\Lambda$ baryons and charged kaons with the femtoscopy technique at the LHC
• Analysis of the $P_{cs}(4338)$ and related pentaquark molecular states via the QCD sum rules
• Analysis of the $B^{+}\to J/\psi \varphi K^{+}$ data at low $J/\psi \varphi$ invariant masses and the $X(4140)$ and $X(4160)$ resonances
• Investigation of hidden-charm double strange pentaquark candidate $P_{css}$ via its mass and strong decays
• Double strangeness molecular-type pentaquarks from coupled channel dynamics
• The $\Xi (1620)$ and $\Xi (1690)$ molecular states from $S=-2$ meson-baryon interaction up to next-to-leading order
• Production of pentaquarks with hidden charm and double strangeness in ${\Xi }_b$ and ${\Omega }_b$ decays
• Nature of excited $\Xi$ baryons with threshold effects

Cited by in corpus (1)

• Triple-strangeness hidden-charm pentaquarks