%0 Journal Article
%T Testing the nature of the $\Lambda$(1520) in the $J/\psi\to\bar{\Lambda}K^-p$ and $J/\psi\to\bar{\Lambda}\pi^+\pi^-\Lambda$ reactions
%A Geng
%A L. S.
%A Oset
%A E.
%A Zou
%A B. S.
%J High Energy Physics - Phenomenology
%D 2008
%I 
%R 10.1140/epja/i2008-10673-7
%X We study the reactions $J/\psi\to\bar{\Lambda}K^-p$ and $J/\psi\to\bar{\Lambda}\pi^+\pi^-\Lambda$ with a unitary chiral approach. We predict the ratio of the invariant mass distributions of these two reactions at the $\Lambda(1520)$ peak position, which is free of the unknown production mechanism and reflects only the properties of the $\Lambda(1520)$. An experimental measurement of this ratio will provide the couplings of the $\Lambda(1520)$ to its decay channels, allowing to test the predictions of the chiral unitary approach on this resonance, which appears as dynamically generated in that approach.
%U http://arxiv.org/abs/0807.4798