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1–4 Jun 2023
Tsung-Dao Lee Institute
Asia/Shanghai timezone

Four-body baryonic $B\to{\bf B_1\bar B'_1 B_2 \bar B'_2}$ decays

2 Jun 2023, 11:20
25m
Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall (Tsung-Dao Lee Institute)

Tsung-Dao Lee Institute/S5F-S500 - Lecture Hall

Tsung-Dao Lee Institute

Tsung-Dao Lee Institute, NO.520 Shengrong Road, Shanghai, 201210
200
Talk Flavor

Speaker

Yu-Kuo Hsiao (Shanxi Normal University)

Description

We would like to present our recent study of the four-body baryonic $B\to{\bf B_1\bar B'_1 B_2\bar B'_2}$ decay. We explain the branching fraction of $\bar B^0\to p\bar p p\bar p$ measured by LHCb as small as $2.2\times 10^{-8}$. We also predict the following branching fractions: ${\cal B}(B^-\to n\bar p p\bar p)=(8.4^{+2.1}_{-1.0}\pm 0.4^{+3.4}_{-1.9})\times 10^{-8}$, ${\cal B}(B^-\to \Lambda\bar p p\bar p)=(3.7^{+0.3}_{-0.1}\pm 0.02^{+1.8}_{-1.3})\times 10^{-7}$ and ${\cal B}(\bar B^0_s\to \Lambda\bar \Lambda p\bar p)=(1.9^{+0.3}_{-0.1}\pm 0.01^{+1.1}_{-0.6})\times 10^{-7}$, with several being accessible to experimental facilities.

Primary author

Yu-Kuo Hsiao (Shanxi Normal University)

Presentation materials