%0 Journal Article
%T Two states for the Ξ(1820) resonance
%A Molina, R.
%A Liang, W. H.
%A Xiao, C. W.
%A Sun, Z. F.
%A Oset, E.
%J Physics Letters B
%D 2024
%V 856
%I Elsevier
%@ 0370-2693
%G English
%F Molina_etal2024
%O WOS:001280602400001
%O exported from refbase (https://references.ific.uv.es/refbase/show.php?record=6223), last updated on Tue, 13 Aug 2024 10:18:23 +0000
%X We recall that the chiral unitary approach for the interaction of pseudoscalar mesons with the baryons of the decuplet predicts two states for the Xi(1820) resonance, one with a narrow width and the other one with a large width. We contrast this fact with the recent BESIII measurement of the K- Lambda mass distribution in the psi(3686) decay to K- Lambda Xi(+), which demands a width much larger than the average of the PDG, and show how the consideration of the two Xi(1820) states provides a natural explanation to the experimental data.
%R 10.1016/j.physletb.2024.138872
%U https://arxiv.org/abs/2309.03618
%U https://doi.org/10.1016/j.physletb.2024.138872
%P 138872-4pp