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AbstractAbstract
[en] This thesis presents all the A(p,π+-)A+1 experimental data measured at Saturne since 1974. A theoretical analysis of a few of them is made in the frame of a microscopic two-nucleon model, involving an intermediate δ(1232) resonance excitation. The spectrometer SPES I and the focal plane detection system are rapidly described. The data analysis method is presented in details. Calculations of the 10B(p,π+)11B (G.S.) excitation functions at constant transfer momentum lead to a good qualitative agreement in a wide range of incident energy and momentum transfer. This model also reproduces the 12C(p,π-)13O(G.S.) experimental cross sections at 613 MeV, pointing out the importance of the N(1520) resonance contribution to the (p,π-) reaction mechanism above the (3,3) resonance
[fr]
Cette these presente l'ensemble des resultats experimentaux des reactions A(p,π+-)A+1, obtenus a Saturne depuis 1974, ainsi qu'une analyse theorique de quelques-uns d'entre eux dans le cadre d'un modele a deux nucleons microscopique supposant l'excitation intermediaire d'une resonance δ(1232). L'ensemble spectrometrique SPES I et le systeme de detection sur le plan focal y sont rapidement decrits, la methode d'extraction des sections efficaces etant developpee en detail. L'analyse des fonctions d'excitation a impulsion transferee constante de la reaction 10B(p,π+)11B(E.F.) conduit a un bon accord qualitatif dans une large gamme d'energies cinetiques incidentes et de transferts d'impulsion. Ce modele permet aussi de reproduire correctement la section efficace experimentale de la reaction 12C(p,π-)13O(E.F.) a 613 MeV et met en evidence l'importance du role de la resonance N(1520) dans le mecanisme de la reaction (p,π-) au-dela de la resonance (3,3)Original Title
Etude des reactions (p, π) aux energies intermediaires
Primary Subject
Secondary Subject
Source
Feb 1983; 250 p; These (D. es Sc.).
Record Type
Report
Literature Type
Thesis/Dissertation; Numerical Data
Report Number
Country of publication
ANTIMATTER, ANTIMESONS, ANTIPARTICLES, BARYON REACTIONS, BARYON RESONANCES, BARYONS, BOSONS, DATA, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, HADRON REACTIONS, HADRONS, INFORMATION, MATHEMATICAL MODELS, MATTER, MESONS, MEV RANGE, N*RESONANCES, NUCLEAR REACTIONS, NUCLEON REACTIONS, NUMERICAL DATA, PIONS, PSEUDOSCALAR ANTIMESONS, PSEUDOSCALAR MESONS, RESONANCE PARTICLES, TARGETS
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