Testing the nature of the Λ(1520) resonance through photoproduction

الأصل · EN

Recent studies within the framework of chiral unitary theory produce the Λ(1520) resonance, among several others, as a dynamically generated resonance from the interaction of the baryon decuplet and the meson octet. The Λ(1520) qualifies as a quasibound state of πΣ(1385) and this has repercussion in some observable quantities. In the present work we show that the γp→ K+K-p reaction has a sizeable cross section for invariant K-p masses above the Λ(1520) mass. On the other hand, we also find that the γp→ K+πΣ(1385) reaction has a sizeable cross section in that energy region as a consequence of the strong coupling of the Λ(1520) to πΣ(1385), and then we make predictions for the ratio of this cross section to that of the γp→ K+ K-p reaction.