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Spin and parity measurement of the Λ(1405) baryon
journal contribution
posted on 2014-02-12, 00:00 authored by Kei Moriya, Reinhard A. Schumacher, M. Bellis, B. Dey, Michael E. McCracken, Curtis MeyerCurtis Meyer, CLAS CollaborationA determination of the spin and parity of the Λ(1405) is presented using photoproduction data from the CLAS detector at Jefferson Lab. The reaction γ+p→K++Λ(1405) is analyzed in the decay channel Λ(1405)→Σ++π−, where the decay distribution to Σ+π− and the variation of the Σ+ polarization with respect to the Λ(1405) polarization direction determines the parity. The Λ(1405) is produced, in the energy range 2.55