Abstract

Different experiments on hadron spectroscopy have long suspected the existence of several cascade states in the 1900−2000MeV1900-2000 {\rm MeV} region. They are usually labeled under the common name of Ξ(1950)Ξ(1950). As we argue here, there are also theoretical reasons supporting the idea of several Ξ(1950)Ξ(1950) resonances. In particular, we propose the existence of three Ξ(1950)Ξ(1950) states: one of these states would be part of a spin-parity (1/2)−(1/2)^{-} decuplet and the other two probably would belong to the (5/2)+(5/2)^{+} and (5/2)−(5/2)^{-} octets. We also identify which decay channels are the more appropriate for the detection of each of the previous states.

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