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The strong $\Lambda_bNB$ and $\Lambda_cND$ vertices
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abstract
We investigate the strong vertices among $\Lambda_b$, nucleon and $B$ meson as well as $\Lambda_c$, nucleon and $D$ meson in QCD. In particular, we calculate the strong coupling constants $g_{\Lambda_bNB}$ and $g_{\Lambda_cND}$ for different Dirac structures entered the calculations. In the case of $\Lambda_cND$ vertex, the result is compared with the only existing prediction obtained at $Q^2=0$.
Forward citations
Cited by 1 Pith paper
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Analysis of the semileptonic decays $\Lambda_b\to\Lambda_cl\bar{\nu}_l$ and $\Xi_b\to\Xi_cl\bar{\nu}_l$ in QCD sum rules
A QCD sum rule analysis that includes negative parity baryon states and condensates up to dimension 8 obtains Lambda_b semileptonic branching ratios near 8 percent and predicts Xi_b rates near 14 percent.
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