Improved analysis of the rare decay processes of Λb

Ren-hao Deng,Yong-lu Liu,Ming-qiu Huang

Table 1. Fitted parameters of form factors by the formula (15) with CZ-type current.

fi ${f}_{i}(0)$ a1 a2 f1 $-{0.06291}_{-0.00626}^{+0.00585}$ $-{3.04354}_{-0.00830}^{+0.00844}$ ${2.37044}_{-0.03688}^{+0.01120}$ f2 ${0.57464}_{-0.11440}^{+0.11470}$ $-{1.49102}_{-0.02239}^{+0.02957}$ ${0.46821}_{-0.05270}^{+0.04206}$ F1 ${0.57464}_{-0.11440}^{+0.11470}$ $-{1.49102}_{-0.02239}^{+0.02957}$ ${0.46821}_{-0.05270}^{+0.04206}$ F2 $-{0.00526}_{-0.00087}^{+0.00093}$ $-{2.95675}_{-0.06225}^{+0.06027}$ ${2.27165}_{-0.07248}^{+0.07671}$