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Audit, G.; D'Hose, N.; Isbert, V.; Kerhoas, S.; Laget, J.M.; Mac Cormick, M.; Murphy, L.Y.; Tamas, G.; Panzeri, A.; Pinelli, T.; Ahrens, J.; Annand, J.R.M.; Crawford, R.; Hall, S.J.; Kellie, J.D.; Murphy, L.Y.
CEA Centre d'Etudes de Saclay, 91 - Gif-sur-Yvette (France). Dept. d'Astrophysique, de la Physique des Particules, de la Physique Nucleaire et de l'Instrumentation Associee1996
CEA Centre d'Etudes de Saclay, 91 - Gif-sur-Yvette (France). Dept. d'Astrophysique, de la Physique des Particules, de la Physique Nucleaire et de l'Instrumentation Associee1996
AbstractAbstract
[en] The cross section of the 3He (γ,pp)n reaction has been measured for the first time over a wide photon energy and proton angular range (200 MeV ≤ Eγ ≤ 800 MeV; 20 deg ≤ vlabp ≤ 160 deg) using the large acceptance detector DAPHNE at the tagged photon facility of the microtron in Mainz. The wide kinematical coverage of the measurement has allowed a detailed analysis of three nucleon absorption mechanisms. A model developed by Laget explains the main characteristics of the data in the Δ resonance region. (authors)
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1996; 17 p; 22 refs.
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ANGULAR DISTRIBUTION, ANGULAR MOMENTUM, BOSON-EXCHANGE MODELS, DALITZ PLOT, ENERGY SPECTRA, GAMMA RADIATION, HELIUM 3 TARGET, MEV RANGE 100-1000, MISSING MASS, MULTIWIRE PROPORTIONAL CHAMBERS, PARTICLE DISCRIMINATION, PHOTONUCLEAR REACTIONS, PHOTOPRODUCTION, PIONS NEUTRAL, PIONS PLUS, PLASTIC SCINTILLATORS, PROTONS, TELESCOPE COUNTERS, THREE-BODY PROBLEM, TOTAL CROSS SECTIONS, TWO-BODY PROBLEM
BARYONS, BASIC INTERACTIONS, BOSONS, CATIONS, CHARGED PARTICLES, CROSS SECTIONS, DIAGRAMS, DISTRIBUTION, ELECTROMAGNETIC INTERACTIONS, ELECTROMAGNETIC RADIATION, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, HADRONS, HYDROGEN IONS, HYDROGEN IONS 1 PLUS, INFORMATION, INTERACTIONS, IONIZING RADIATIONS, IONS, MANY-BODY PROBLEM, MASS, MATHEMATICAL MODELS, MEASURING INSTRUMENTS, MESONS, MEV RANGE, NUCLEAR REACTIONS, NUCLEONS, PARTICLE IDENTIFICATION, PARTICLE INTERACTIONS, PARTICLE MODELS, PARTICLE PRODUCTION, PERIPHERAL MODELS, PHOSPHORS, PIONS, PROPORTIONAL COUNTERS, PSEUDOSCALAR MESONS, RADIATION DETECTORS, RADIATIONS, SCATTERPLOTS, SPECTRA, TARGETS
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