Study of and decays

Y. K. Hsiao; C. Q. Geng; Yao Yu; H. J. Zhao

doi:10.1140/epjc/s10052-019-6935-9

EPJ

Study of $Mathematical equation: $$B^-\rightarrow \Lambda \bar{p}\eta ^{(')}$$$ and $Mathematical equation: $$\bar{B}^0_s\rightarrow \Lambda \bar{\Lambda }\eta ^{(')}$$$ decays

Y. K. Hsiao¹^*, C. Q. Geng¹^,2^,3, Yao Yu³ and H. J. Zhao¹

¹ School of Physics and Information Engineering, Shanxi Normal University, Linfen, 041004, China
² Department of Physics, National Tsing Hua University, Hsinchu, 300, Taiwan
³ Chongqing University of Posts and Telecommunications, Chongqing, 400065, China

^* e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it.

Received: 12 August 2018
Accepted: 11 May 2019
Published online: 22 May 2019

Abstract

We study the three-body baryonic $Mathematical equation: $$B\rightarrow {{\mathbf{B}}\bar{\mathbf{B}}'}M$$$ decays with M representing the $Mathematical equation: $$\eta $$$ or $Mathematical equation: $$\eta '$$$ meson. Particularly, we predict that $Mathematical equation: $$\mathcal{B}(B^-\rightarrow \Lambda \bar{p}\eta ,\Lambda \bar{p}\eta ') =(5.3\pm 1.4,3.3\pm 0.7)\times 10^{-6}$$$ or $Mathematical equation: $$(4.0\pm 0.7,4.6\pm 1.1)\times 10^{-6}$$$ , where the errors arise from the non-factorizable effects as well as the uncertainties in the $Mathematical equation: $$0\rightarrow {{\mathbf{B}}\bar{\mathbf{B}}'}$$$ and $Mathematical equation: $$B\rightarrow {{\mathbf{B}}\bar{\mathbf{B}}'}$$$ 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 $Mathematical equation: $$\bar{B}_s^0$$$ decays, we find that $Mathematical equation: $$\mathcal{B}(\bar{B}^0_s\rightarrow \Lambda \bar{\Lambda } \eta ,\Lambda \bar{\Lambda } \eta ') =(1.2\pm 0.3,2.6\pm 0.8)\times 10^{-6}$$$ or $Mathematical equation: $$(2.1\pm 0.6,1.5\pm 0.4)\times 10^{-6}$$$ with the errors similar to those above. The decays in question are accessible to the experiments at BELLE and LHCb.

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EPJ

Study of and decays

Conference announcements

Study of $Mathematical equation: $$B^-\rightarrow \Lambda \bar{p}\eta ^{(')}$$$ and $Mathematical equation: $$\bar{B}^0_s\rightarrow \Lambda \bar{\Lambda }\eta ^{(')}$$$ decays