Perturbative QCD predictions for the decay Bs0→SS(a0(980),f0(980),f0(500))
| Autor: | Xian-Qiao Yu, Ze-Rui Liang |
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| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Physical Review D. 102 |
| ISSN: | 2470-0029 2470-0010 |
| DOI: | 10.1103/physrevd.102.116007 |
| Popis: | In this work, we calculate the branching ratios and $CP$ violations of the ${B}_{s}^{0}\ensuremath{\rightarrow}{a}_{0}(980){a}_{0}(980)$ decay modes with both charged and neutral ${a}_{0}(980)$ mesons and ${B}_{s}^{0}\ensuremath{\rightarrow}{f}_{0}(980)({f}_{0}(500)){f}_{0}(980)({f}_{0}(500))$ for the first time in the pQCD approach. Considering the recent observation of the BESIII collaboration that provide a direct information about the constituent two-quark components in the corresponding ${a}_{0}(980)$ wave functions, we regard the scalar mesons ${a}_{0}(980)$, ${f}_{0}(980)$, and ${f}_{0}(500)$ as the $q\overline{q}$ quark component in our present work, and then make predictions of these decay modes. The branching ratios of our calculations are at the order of the ${10}^{\ensuremath{-}4}\ensuremath{\sim}{10}^{\ensuremath{-}6}$ when we consider the mixing scheme. We also calculate the $CP$ violation parameters of these decay modes. The relatively large branching ratios make it easily to be tested by the running LHC-b experiments, and it can help us to understand both the inner properties and the QCD behavior of the scalar meson. |
| Databáze: | OpenAIRE |
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