Description of the decay f(1)(1425)-> K(K)over-bar-pi

The decay of the axial f(1)(1425) meson through the chain f(1) --> K*(K) ov er bar((K) over bar*K) --> K (K) over bar pi has been considered in a model incorporating pole diagrams and a triangle diagram. This analysis was moti vated by a recent observation (OBELIX collaboration, LEAR, CERN) of this st ate with the K*(K) over bar ((K) over bar*K) decay mode in the reaction p ( p) over bar --> (K (K) over bar pi)pi pi at rest. A nonrelativistic approac h has been used Final-state KK rescattering through a(0)(980) production ha s been taken into account in the triangle diagram. The properties of this d iagram and its role in f(1) decay are discussed. Our previous similar analy sis of the decay of the pseudoscalar state eta in the E/l mass region (simi lar to 1400-1500 MeV) has been improved, and the revised part of the result s is also presented.