Potential of discovering $Ξ_{cc}^+$ in $Λ_b $ decays
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866914114788392960 |
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| author | Geng, Chao-Qiang Jin, Xiang-Nan Liu, Chia-Wei Liu, Xin-Yi Yu, Xiao |
| author_facet | Geng, Chao-Qiang Jin, Xiang-Nan Liu, Chia-Wei Liu, Xin-Yi Yu, Xiao |
| contents | We propose to search for $Ξ_{cc}^+$ in the decay $Λ_b \to Ξ_{cc}^+ D^-$, which serves as a tagged and reconstructible source of $Ξ_{cc}^+$, providing an experimentally clean environment for its discovery. A possible fully charged final state is $[(pK^- K^- π^+)_{Ξ^0_c} π^ + ]_{Ξ_{cc}^+} \,(K^+ π^- π^-)_{D^-}$, where the subscripts indicate the parent hadron in the decay chain. We estimate the branching fraction to be ${\cal B}(Λ_b \to Ξ_{cc}^+ D^-) = ( 5.1 \pm 3.9) \times 10^{-4}$, while the fully charged final state corresponds to an effective branching fraction of order $10^{-8}$. These results indicate that LHCb has the potential to discover the $Ξ_{cc}^+$. The prospects for observing $Ω_{cc}^+$ are also briefly discussed. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2510_22181 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Potential of discovering $Ξ_{cc}^+$ in $Λ_b $ decays Geng, Chao-Qiang Jin, Xiang-Nan Liu, Chia-Wei Liu, Xin-Yi Yu, Xiao High Energy Physics - Phenomenology High Energy Physics - Experiment We propose to search for $Ξ_{cc}^+$ in the decay $Λ_b \to Ξ_{cc}^+ D^-$, which serves as a tagged and reconstructible source of $Ξ_{cc}^+$, providing an experimentally clean environment for its discovery. A possible fully charged final state is $[(pK^- K^- π^+)_{Ξ^0_c} π^ + ]_{Ξ_{cc}^+} \,(K^+ π^- π^-)_{D^-}$, where the subscripts indicate the parent hadron in the decay chain. We estimate the branching fraction to be ${\cal B}(Λ_b \to Ξ_{cc}^+ D^-) = ( 5.1 \pm 3.9) \times 10^{-4}$, while the fully charged final state corresponds to an effective branching fraction of order $10^{-8}$. These results indicate that LHCb has the potential to discover the $Ξ_{cc}^+$. The prospects for observing $Ω_{cc}^+$ are also briefly discussed. |
| title | Potential of discovering $Ξ_{cc}^+$ in $Λ_b $ decays |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2510.22181 |