English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We study the CP-odd and CP-even observables of the $B$ mesons decaying into abaryon and antibaryon. We estimate these observables through the $^3P_0$ modeland chiral selection rule. The decay branching ratios of $ B^+ \to p\overline{\Lambda}$ and $ B^0 \to p \overline{p}$ are calculated to be $2.31\times 10^{-7}$ and $1.27 \times 10^{ -8} $, which are consistent with thecurrent experiments, respectively. The effects of the $B-\overline{B}$oscillations are considered, which largely suppress the direct CP asymmetriesin the $B_s^0$ decays. We suggest the experiments to visit $B_s^0 \to\Lambda(\to p \pi^-) \overline{\Lambda} (\to \overline{ p} \pi^+) $, where thetime-averaged CP-odd observables are estimated to be large. The direct CPasymmetries of $B^+ \to p \overline{\Lambda}$ and $B^0 \to p\overline{p}$ arefound to be $26.2\%$ and $-3.1\%$ for a positive strong phase and $-36.9\%$ and$4.2\%$ for a negative strong phase, respectively.

CP asymmetries in $B$ meson two-body baryonic decays