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arXiv · 1610.05418

Analysis of the semileptonic decay \Lambda_c->ne^+\nu_e

Cheng-Fei Li·Yong-Lu Liu·Ke Liu·Chun-Yu Cui·Ming-Qiu Huang
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Abstract

The semileptonic weak decay process of the $\Lambda_c$ baryon to the neutron $\Lambda_c\rightarrow ne^+\nu_e$ is examined. The transition form factors are investigated with light-cone QCD sum rules. The differential decay width is obtained in the dynamical region by fitting the sum rules-allowed results with the dipole formula. The total decay width and the branching ratio are estimated to be $\Gamma(\Lambda_c\rightarrow ne^+\nu_e)=(8.57\pm0.41)\times10^{-15}\,\mbox{GeV}$ and $\mbox{Br}(\Lambda_c\rightarrow ne^+\nu_e)=0.26\pm0.01\%$, respectively.

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Cheng-Fei Li, Yong-Lu Liu, Ke Liu, Chun-Yu Cui, Ming-Qiu Huang. 2016-10-18. Analysis of the semileptonic decay \Lambda_c->ne^+\nu_e. https://doi.org/10.1088/1361-6471/aa68f1

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