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 Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We make a detailed study of the three-body decays $B_{(s)}\rightarrow\chi_{c1} hh'$, where $h^{(')}$ is either a pion or kaon, by taking intoaccount the $S$-wave states in the $hh'$ invariant mass distribution within theperturbative QCD approach. The two meson distribution amplitudes (DAs) areintroduced to capture the strong interaction related to the production of the$hh'$ system. We calculate the branching ratios for the $S$-wave components andobserve large values of order $10^{-4}$ for some Cabibbo-favored decays, whichare accessible to the LHCb and Belle II experiments. The obtained branchingratio $\mathcal{B}(B\rightarrow \chi_{c1}K^*_{0}(1430)(\rightarrowK^+\pi^-))=(5.1^{+0.6}_{-0.8})\times 10^{-5}$ consistent with the data fromBelle within errors. Moreover, we also predict the differential distributionsin the $hh'$ invariant mass for the decays under consideration, which await thefuture experimental test. In addition, the corresponding $\chi_{c1}(2P)$channels are also investigated, which are helpful to clarify the nature of the$X(3872)$ state.

$S$-wave contributions to the $B_{(s)}\rightarrow \chi_{c1} (\pi\pi,K\pi,KK)$ decays