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12 papers · 2 filters
Isoscalar Roper Excitation in Reactions in the Region
S. Hirenzaki, E. Oset, P. Fernández de Córdoba
Recent experiments at Saturne at showed that the reaction on the proton shows two distinctive peaks, which were associated to projectile excitation and Roper…
Roper Excitation in Alpha-Proton Scattering
S. Hirenzaki, P. Fernández de Córdoba, E. Oset
We study the Roper excitation in the reaction. We consider all processes which may be relevant in the Roper excitation region, namely, Roper excitation in the target, Rope…
Towards a Unified Description of the Baryon Spectrum and the Baryon-Baryon Interaction within a Potential Model Scheme
A. Valcarce, F. Fernandez, P. Gonzalez +1
We study the low energy part of the nucleon and spectra by solving the Schrödinger equation for the three-quark system in the hyperspherical harmonic approach. The quark-quark…
Mesonic and Binding Contributions to the EMC Effect in a Relativistic Many Body Approach
E. Marco, E. Oset, P. Fernández de Córdoba
We revise the conventional nuclear effects of Fermi motion, binding and pionic effects in deep inelastic lepton scattering using a relativistic formalism for an interacting Fermi s…
The N*(1520) ---> Delta pi Amplitudes Extracted from the gamma p ---> pi+ pi- p Reaction and Comparison to Quark Models
J. A. Gomez Tejedor, F. Cano, E. Oset
The gamma p ---> pi+ pi- p reaction, in combination with data from the pi N ---> pi pi N reaction, allows one to obtain the s- and d-wave amplitudes for the N*(1520) decay into Del…
A Consistent Study of the the Low Energy Baryon Spectrum and the Nucleon-Nucleon Interaction within the Chiral Quark Model
A. Valcarce, P. Gonzalez, F. Fernandez +2
By solving the Schrödinger equation for the three-quark system in the hyperspherical harmonic approach, we have studied the low energy part of the nucleon and spectra using a q…