Study of the resonance contributions in the <math><msubsup><mi>Ξ</mi><mi>b</mi><mo>−</mo></msubsup><mo>→</mo><mi>p</mi><msup><mi>K</mi><mo>−</mo></msup><msup><mi>K</mi><mo>−</mo></msup></math> decay

The decay process Ξb−→pK−K− is studied with the final-state interaction approach by considering the contributions from the S-wave meson-baryon interactions, and also the intermediate state Λ(1520) in the D-wave. The low-lying resonances Λ(1405) and Λ(1670) have significant contributions, which are both dynamically generated from the S-wave final-state interactions with isospin I=0. Furthermore, the Λ(1520) state also has important contributions from D-wave. With these resonances contributions, the experimental data of the lower pK− invariant mass distributions are well-described. We also discuss the contribution of another resonance in the S-wave with isospoin I=1, which cannot be ignored. Moreover, some of the branching fractions obtained for the corresponding decay channels are consistent with the experimental measurements.