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AbstractAbstract
[en] The pion form factor is measured in the reaction e+e-→π+π- for center of mass energies in the range 480-900 MeV. The results are first analysed in terms of the conventional Vector Meson Dominance formalism, and then taking into account the ωπ inelastic channel. The results of this later formalisms is a pion form factor (F) which fits quite well all the existing data on F both in the timelike and spacelike regions, and a pion mean square radius
[fr]
Le facteur de forme du pion est mesure a l'aide de la reaction e+e-→π+π- dans un domaine d'energie dans le centre de masse allant de 480 a 900 MeV. Les resultats sont analyses d'une part avec le modele de dominance des mesons vecteurs, d'autre part en tenant compte du canal inelastique ωπ. Ce dernier formalisme donne les resultats suivants: l'expression du facteur de forme du pion lisse tres bien toutes les valeurs experimentales de F, a la fois dans la region temps et dans la region espace, et la valeur moyenne du carre du rayon du pionOriginal Title
Etude du facteur de forme electromagnetique du pion dans la region temps, du seuil de production a 900 MeV dans le centre de masse
Primary Subject
Source
1977; 330 p; These (D. es S.).
Record Type
Report
Literature Type
Thesis/Dissertation; Numerical Data
Report Number
Country of publication
ACO, ANGULAR DISTRIBUTION, ANNIHILATION, CENTER-OF-MASS SYSTEM, CROSS SECTIONS, DATA ACQUISITION, DATA PROCESSING, ELECTROMAGNETIC FORM FACTORS, ELECTRON-ELECTRON INTERACTIONS, EXPERIMENTAL DATA, GRAPHS, IMAGE PROCESSING, MAGNETIC ANALYZERS, MEV RANGE 100-1000, MULTIWIRE PROPORTIONAL CHAMBER, PIONS, RADIATIVE CORRECTIONS, SPACE-TIME, TABLES, THEORETICAL DATA, VECTOR DOMINANCE MODEL, VECTOR MESONS
BEAM ANALYZERS, BOSONS, CORRECTIONS, DATA, DATA FORMS, DISTRIBUTION, ELEMENTARY PARTICLES, ENERGY RANGE, FORM FACTORS, HADRONS, INFORMATION, INTERACTIONS, LEPTON-LEPTON INTERACTIONS, MATHEMATICAL MODELS, MEASURING INSTRUMENTS, MESON RESONANCES, MESONS, MEV RANGE, NUMERICAL DATA, PARTICLE INTERACTIONS, PARTICLE MODELS, PARTICLE PROPERTIES, PROPORTIONAL COUNTERS, PSEUDOSCALAR MESONS, RADIATION DETECTORS, RESONANCE PARTICLES, STORAGE RINGS
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