Hidden charm ${\mathcal{P}}_{cs}(4338{)}^0$ production in baryonic $B^{-}\to J/\psi \Lambda \bar{p}$ decay

Abstract

We investigate the resonant baryonic $B$ decay $B^{-}\to {\mathcal{P}}_{cs}^0\bar{p},{\mathcal{P}}_{cs}^0\to J/\psi \Lambda$, where ${\mathcal{P}}_{cs}^0\equiv {\mathcal{P}}_{cs}(4338{)}^0$ is identified as a hidden charm pentaquark candidate with strangeness. By interpreting ${\mathcal{P}}_{cs}^0$ as the ${\Xi }_c\bar{D}$ molecule that strongly decays into $J/\psi \Lambda$ and ${\eta }_c\Lambda$, we discover a dominant triangle rescattering effect for $B^{-}\to {\mathcal{P}}_{cs}^0\bar{p}$, initiated by $B^{-}\to J/\psi K^{-}$. Through the exchange of a $\bar{\Lambda }$ anti-baryon, $J/\psi$ and $K^{-}$ undergo rescattering, transforming into ${\mathcal{P}}_{cs}^0$ and $\bar{p}$, respectively. Based on this rescattering mechanism, we calculate $\mathcal{B}(B^{-}\to {\mathcal{P}}_{cs}^0\bar{p},{\mathcal{P}}_{cs}^0\to J/\psi \Lambda )=(1.4_{-1.1}^{+2.1})\times 10^{-6}$, which is consistent with the measured data.

arXiv comment13 pages, 2 figures, 2 tables, matches published version

References in corpus (56)

• Observation of $J/\psi p$ resonances consistent with pentaquark states in ${\Lambda }_b^0\to J/\psi K^{-}p$ decays
• 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
• From the Deuteron to Deusons, an Analysis of Deuteronlike Meson-Meson Bound States
• Experimental Tests of Factorization in Charmless Non-Leptonic Two-Body B Decays
• Final State Interactions in Hadronic B Decays
• Weak form factors for heavy meson decays: an update
• Evidence of a $J/\psi \Lambda$ structure and observation of excited ${\Xi }^{-}$ states in the ${\Xi }_b^{-}\to J/\psi \Lambda K^{-}$ decay
• Observation of a $J/\psi \Lambda$ resonance consistent with a strange pentaquark candidate in $B^{-}\to J/\psi \Lambda \bar{p}$ decays
• Lattice QCD and QCD Sum Rule determination of the decay constants of eta_c, J/psi and hc states
• Evidence for a new structure in the $J/\psi p$ and $J/\psi \bar{p}$ systems in $B_s^0\to J/\psi p\bar{p}$ decays
• Pathways to Rare Baryonic B Decays
• Intrinsic Charm of Vector Mesons: A Possible Solution of the "rho pi" Puzzle
• Updated Analysis of a_1 and a_2 in Hadronic Two-body Decays of B Mesons
• Resonant $a_0(980)$ state in triangle rescattering $D_s^{+}\to {\pi }^{+}{\pi }^0\eta$ decays
• Investigation of magnetic moment of $P_{cs}(4338)$ and $P_{cs}(4459)$ pentaquark states
• 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
• The double thresholds distort the lineshapes of the $P_{\psi s}^{\Lambda }(4338{)}^0$ resonance
• Partial waves of baryon-antibaryon in three-body B meson decay
• Evading the CKM Hierarchy: Intrinsic Charm in B Decays
• Charmed ${\Omega }_c$ weak decays into $\Omega$ in the light-front quark model
• Charmful Three-body Baryonic B decays
• Pole determination of $P_{\psi s}^{\Lambda }(4338)$ and possible $P_{\psi s}^{\Lambda }(4255)$ in $B^{-}\to J/\psi \Lambda \bar{p}$
• Looking for Exotic Multiquark States in Nonleptonic B Decays
• Analysis of the $P_{cs}(4338)$ and related pentaquark molecular states via the QCD sum rules
• Interpretations of the new LHCb $P_c(4337{)}^{+}$ pentaquark state
• The LHCb state $P_{\psi s}^{\Lambda }(4338)$ as a triangle singularity
• Spectrum of the molecular pentaquarks
• $P_{\psi s}^{\Lambda }(4459)$ and $P_{\psi s}^{\Lambda }(4338)$ as molecular states in $J/\psi \Lambda$ invariant mass spectra
• Violation of PCAC and two-body baryonic $B$ and $D_s$ decays
• Enhanced $B\to \mu \bar{\nu }$ Decay at Tree Level as Probe of Extra Yukawa Couplings
• Pentaquarks from intrinsic charms in ${\Lambda }_b$ decays
• Surveying the mass spectra and the electromagnetic properties of the ${\Xi }_c^{(\prime ,\ast )}{D}^{(\ast )}$ molecular pentaquarks
• Probing for the Charm Content of $B$ and ${\rm Y}$ Mesons
• Study of $B\to \Lambda \bar{\Lambda }K$ and $B\to \Lambda \bar{\Lambda }\pi$
• Testing the W-exchange mechanism with two-body baryonic B decays
• Exotic Hadrons at LHCb
• Meson-baryon coupling constants of the SU(3) baryons with flavor SU(3) symmetry breaking
• Study of $B\to p\bar{p}{K}^{\ast }$ and $B\to p\bar{p}\rho$
• Direct CP violation in internal W-emission dominated baryonic B decays
• Comprehensive study of light axial vector mesons with the presence of triangle singularity
• Cabibbo-favored ${\Lambda }_c^{+}\to \Lambda a_0(980{)}^{+}$ decay in the final state interaction
• Identifying Glueball at 3.02 GeV in Baryonic $B$ Decays
• Study of two-body doubly charmful baryonic $B$ decays with $SU(3)$ flavor symmetry
• Baryonic $B$ meson decays
• New $X_{0,1}(2900)$-like exotic states in $b$-baryon decays
• Possibly New Charmed Baryon States from ${\bar{B}}^0\to p\bar{p}{D}^0$ Decay
• $f_J(2220)$ and Hadronic ${\bar{B}}_s^0$ Decays
• Search for the rare hadronic decay $B_s^0\to p\bar{p}$
• Charmful baryonic B\to {\bf B\bar B'}M_c decays
• Testing factorization in colour-suppressed beauty decays with the B -> η_c + K(K^*) modes
• Two-body Baryonic $B_{u,d,s}$ and $B_c$ to Charmless Final State Decays
• Pentaquarks in semileptonic ${\Lambda }_b$ decays
• Four-body baryonic $B\to {\mathbf{B}}_1{\bar{\mathbf{B}}}_1^{\prime }{\mathbf{B}}_2{\bar{\mathbf{B}}}_2^{\prime }$ decays
• Testing the light scalar meson as a non-$q\bar{q}$ state in semileptonic $D$ decays
• Strong decays of the $P_{cs}(4338)$ and its high isospin cousin via the QCD sum rules

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