Photoproduction of Λ^* resonances at CLAS

We present the study of the reaction γp → K⁺Λ^* using the photoproduction data from the CLAS-g12 experiment performed in Hall B of Jefferson Laboratory. The photoproduction of the hyperon resonances Λ(1405)1/2^- and Λ(1520)3/2^- has been well studied, but little is known about photoproduction to the higher-mass resonances Λ(1670)1/2^- and Λ(1690)3/2^-. Both pairs of resonances are spin-orbit partners and are rated as 4-star (well-known) by the Particle Data Group. In the quark model, the Λ(1405) and Λ(1520) resonances are assigned to the SU(3) singlet, where the Λ(1670) and Λ(1690) are assigned to the octet. The decay of Λ^* resonances, Λ(1520), Λ(1670), and Λ(1690), into two exclusive channels, Σ⁺π^- and Σ^-π⁺, is studied from the detected K⁺, π⁺, and π^- particles. The Λ(1520) differential cross sections are in good agreement with the previous CLAS measurements and are extended to higher photon energies. We present cross sections for the first time using photoproduction to the higher mass resonances, Λ(1670) and Λ(1690).