Calculation of BR(${\bar{B}}^0\to {\Lambda }_c^{+}+\bar{p})$ in the PQCD Approach

Abstract

We calculate the branching ratio of ${\bar{B}}^0\to {\Lambda }_c^{+}\bar{p}$ in the PQCD approach. Most previous model calculations obtained branching ratios significantly larger than experimental data. We find that the predicted branching ratio for BR$({\bar{B}}^0\to {\Lambda }_c^{+}\bar{p})$ in the PQCD approach can vary over a range of $(2.3\sim 5.1)\times 10^{-5}$ with the largest uncertainty coming from the parameters in the wave function of ${\Lambda }_c$. With the favored values for the parameters in the ${\Lambda }_c^{+}$ wave function, $\beta =1$ GeV and $m_q=0.3$ GeV, the branching ratio is about $2.3\times 10^{-5}$ which is satisfactorily consistent with the value measured by experiments.

arXiv comment45 pages, 4 figure and 4 tables. New version replaced

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Cited by in corpus (8)

• Next-to-leading-order corrections to $B\to \pi$ form factors in $k_T$ factorization
• Gauge Invariance and k_T-Factorization of Exclusive Processes
• On the smallness of Tree-dominated Charmless Two-body Baryonic $B$ Decay Rates
• Baryonic $B$ meson decays
• Search for the rare hadronic decay $B_s^0\to p\bar{p}$
• Two-body Baryonic $B_{u,d,s}$ and $B_c$ to Charmless Final State Decays
• Search for the decay mode $B^0\to pp\bar{p}\bar{p}$
• First observation of the ${\overline{B}}_s^0\to {\Lambda }_c^{+}{\overline{\Lambda }}_c{}^{-}$ decay and evidence for the ${\overline{B}}^0\to {\Lambda }_c^{+}{\overline{\Lambda }}_c{}^{-}$ decay