Abstract
We analyze the baryonic semilepton decayΛb→Λμ+μ-in the scalar leptoquark models withX(3,2,7/6)andX(3,2,1/6)states, respectively. We also discuss the effects of these two NP models on some physical observables. For some measured observables, like the differential decay width, the longitudinal polarization of the dilepton system, the lepton-side forward-backward asymmetry, and the baryon-side forward-backward asymmetry, we find that the prediction values of SM are consistent with the current data in mostq2ranges, where the prediction values of these two NP models can also keep consistent with the current data with1σ. However, in someq2ranges, the prediction values of SM are difficult to meet the current data, but the contributions of these two NP models can meet them or keep close to them. For the double-lepton polarization asymmetries,PLT,PTL,PNN, andPTTare sensitive to the scalar leptoquark modelX(3,2,7/6)but not toX(3,2,1/6). However,PLN,PNL,PTN, andPNTare not sensitive to these two NP models.
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