Study of $B^{-}\to \Lambda \bar{p}{\eta }^{{(}^{\prime })}$ and ${\bar{B}}_s^0\to \Lambda \bar{\Lambda }{\eta }^{{(}^{\prime })}$ decays

Abstract

We study the three-body baryonic $B\to \mathbf{B}{\bar{\mathbf{B}}}^{\prime }M$ decays with $M$ representing the $\eta$ or ${\eta }^{\prime }$ meson. Particularly, we predict that $\mathcal{B}(B^{-}\to \Lambda \bar{p}\eta ,\Lambda \bar{p}{\eta }^{\prime })=(5.3\pm 1.4,3.3\pm 0.7)\times 10^{-6}$ or $(4.0\pm 0.7,4.6\pm 1.1)\times 10^{-6}$, where the errors arise from the non-factorizable effects as well as the uncertainties in the $0\to \mathbf{B}{\bar{\mathbf{B}}}^{\prime }$ and $B\to \mathbf{B}{\bar{\mathbf{B}}}^{\prime }$ transition form factors, while the two different results are due to overall relative signs between the form factors, causing the constructive and destructive interference effects. For the corresponding baryonic ${\bar{B}}_s^0$ decays, we find that $\mathcal{B}({\bar{B}}_s^0\to \Lambda \bar{\Lambda }\eta ,\Lambda \bar{\Lambda }{\eta }^{\prime })=(1.2\pm 0.3,2.6\pm 0.8)\times 10^{-6}$ or $(2.1\pm 0.6,1.5\pm 0.4)\times 10^{-6}$ with the errors similar to those above. The decays in question are accessible to the experiments at BELLE and LHCb.

15 pages, 5 figures, revised version accepted by EPJC

References in corpus (11)

• Anti-triplet charmed baryon decays with SU(3) Flavor Symmetry
• Direct CP Violation in Charmless Three-body Decays of $B$ Mesons
• Pseudoscalar glueball mass from $\eta$-${\eta }^{\prime }$-$G$ mixing
• Charmed Baryon Weak Decays with SU(3) Flavor Symmetry
• Non-leptonic two-body weak decays of ${\Lambda }_c(2286)$
• Partial waves of baryon-antibaryon in three-body B meson decay
• Charmful Three-body Baryonic B decays
• Direct CP violation in $B^{\pm }\to p\bar{p}{K}^{(\ast )\pm }$
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• Violation of PCAC and two-body baryonic $B$ and $D_s$ decays
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Cited by in corpus (5)

• Testing the W-exchange mechanism with two-body baryonic B decays
• Direct CP violation in internal W-emission dominated baryonic B decays
• Semileptonic baryonic $B$ decays
• Four-body baryonic $B\to {\mathbf{B}}_1{\bar{\mathbf{B}}}_1^{\prime }{\mathbf{B}}_2{\bar{\mathbf{B}}}_2^{\prime }$ decays
• Rescattering-induced $D\to SS$ weak decays