TY  - JOUR
AU  - Molina, R.
AU  - Liang, W. H.
AU  - Xiao, C. W.
AU  - Sun, Z. F.
AU  - Oset, E.
PY  - 2024
DA  - 2024//
TI  - Two states for the Ξ(1820) resonance
T2  - Phys. Lett. B
JO  - Physics Letters B
SP  - 138872
EP  - 4pp
VL  - 856
PB  - Elsevier
AB  - 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.
SN  - 0370-2693
UR  - https://arxiv.org/abs/2309.03618
UR  - https://doi.org/10.1016/j.physletb.2024.138872
DO  - 10.1016/j.physletb.2024.138872
LA  - English
N1  - WOS:001280602400001
ID  - Molina_etal2024
ER  -