A. Martínez Torres

Three-body resonances in two-meson-one-baryon systems

We report four {sigma}s and three {lambda}s, in the 1500-1800 MeV region, as two meson-one baryon S-wave (1/2){sup +} resonances. We solve Faddeev equations in the coupled channel approach. The invariant mass of one of the meson-baryon pairs and that of the three particles have been varied and peaks in the squared three body T-matrix have been found very close to the existing S=-1,J{sup P}=1/2{sup +} low lying baryon resonances. The input two-body t-matrices for meson-meson and meson-baryon interaction have been calculated by solving the Bethe-Salpeter equation with the potentials obtained in the chiral unitary approach.

Searching for signatures around 1920 MeV of a N* state of three hadron nature

We provide a series of arguments which support the idea that the peak seen in the

Study of the J/ψ→ϕ(ω)f2(1270), J/ψ→ϕ(ω)f2′(1525) and J/ψ→K∗0(892)K¯2∗0(1430) decays

gamma

Three-body hadronic structure of low-lying 1/2+ Σ and Λ resonances⋆

p

Searching for exotic states in the N pi K system

rightarrow

Study of the J/ψ→ϕ(ω)f2(1270)J/ψ→ϕ(ω)f2(1270), J/ψ→ϕ(ω)f2′(1525) and J/ψ→K∗0(892)K¯2∗0(1430) decays

K+

Study of the

Lambda

\gamma d\to K^{+}K^{-}np

reaction around 1920MeV should correspond to the recently predicted state of JP = 1/2+ as a bound state of K

reaction and an alternative explanation for the '

bar{{K}}

\Theta^{+}(1540)

N with a mixture of a0(980)N and f0(980)N components. At the same time we propose polarization experiments in that reaction as a further test of the prediction, as well as a study of the total cross-section for