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17 papers · 2 filters
Photoproduction of the Lambda(1405) on the proton and nuclei
J. C. Nacher, E. Oset, H. Toki +1
We study the gamma p ---> K^+ Lambda(1405) reaction at energies close to threshold using a chiral unitary model where the resonance is generated dynamically from K^-p interaction w…
The role of the Roper resonance in n p --> d (pi pi)
L. Alvarez-Ruso
In this work, a model for the n p --> d (pi pi) reaction is developed. It is shown that the structure of the deuteron momentum spectra for a neutron beam momentum of 1.46 GeV can b…
KbarN interaction and Kaons in the nuclear medium
A. Ramos, E. Oset
The s-wave meson-nucleon interaction in the S=-1 sector is studied by means of a coupled-channel Lippmann Schwinger equation, using the lowest order chiral Lagrangian and a cut off…
Isocalar Roper excitation in the pp --> pp pi0 reaction close to threshold
E. Hernandez, E. Oset
A new mechanism for the pp --> pp pi0 reaction close to threshold is suggested coming from the isoscalar excitation of the Roper and its decay into N(pi pi)S-wave, with one of the…
Translationally invariant treatment of pair correlations in nuclei: II. Tensor correlations
R. F. Bishop, R. Guardiola, I. Moliner +4
We study the extension of our translationally invariant treatment of few-body nuclear systems to include tensor forces and correlations. It is shown that a direct application of ou…
Weak Decay of Lambda Hypernuclei
E. Oset, A. Ramos
We review recent developments concerning the weak decay of Lambda hypernuclei. New studies covering the mesonic decay channel as well as recent models for the non-mesonic one are d…