ϕN photoproduction coupled with the K Λ* channel

Coupled Channel Study of K + Λ Photoproduction

A coupled channel model with γN , KY and πN channels has been used to analyze the recent data of γp → K + Λ. The non-resonant interactions within the subspace KY ⊕ πN are derived from effective Lagrangians using a unitary transformation method. The direct photoproduction reaction is obtained from a chiral constituent quark model with SU (6) ⊗ O(3) breaking. Missing baryon resonances issues are ...

Photoproduction of K ∗ for the study of Λ(1405)

Photo-induced K * vector meson production is investigated for the study of the Λ(1405) resonance. This reaction is particularly suited to the isolation of the second pole in the Λ(1405) region which couples dominantly to the ¯ KN channel. We obtain the mass distribution of the Λ(1405) which peaks at 1420 MeV, and differs from the nominal one. Combined with several other reactions, this detailed...

K + and exclusive K + Y photoproduction on the deuteron : Λ - and Σ - threshold phenomena

K + Y photoproduction on the deuteron : Λ - and Σ - threshold phenomena

Photoproduction of the Λ(1405) on the Proton and Nuclei

We study the γp → K+Λ(1405) reaction at energies close to threshold using a chiral unitary model where the resonance is generated dynamically from Kp interaction with other channels constructed from the octets of baryons and mesons. Predictions are made for cross sections into several channels and it is shown that the detection of the K+ is sufficient to determine the shape and strength of the ...