Roles of scalar mesons in charmless ${\Lambda }_b$ decays

Y. K. Hsiao, Yu-Heng Lin, Yao Yu +1

We first study the charmless two-body ${\Lambda }_b$ decays with the scalar mesons as the final states and predict that ${\cal B}(Λ_b\to Λf_0(980,1500))=(2.9\pm 0.7,12.4\pm 3.8)\times 10^{-…