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Berger, C.; Deuter, A.; Genzel, H.; Lackas, W.; Pielorz, J.; Raupach, F.; Wagner, W.; Bussey, P.J.; Cartwright, S.L.; Dainton, J.B.; King, B.T.; Raine, C.; Scarr, J.M.; Skillicorn, I.O.; Smith, K.M.; Thomson, J.C.; Achterberg, O.; Blobel, V.; Burkart, D.; Diehlmann, K.; Feindt, M.; Kapitza, H.; Koppitz, B.; Krueger, M.; Poppe, M.; Spitzer, H.; Staa, R. van; Almeida, F.; Baecker, A.; Barreiro, F.; Brandt, S.; Derikum, K.; Grupen, C.; Meyer, H.J.; Mueller, H.; Neumann, B.; Rost, M.; Stupperich, K.; Zech, G.; Alexander, G.; Bella, G.; Gnat, Y.; Grunhaus, J.; Junge, H.; Kraski, K.; Maxeiner, C.; Maxeiner, H.; Meyer, H.; Schmidt, D.; Buerger, J.; Criegee, L.; Ferrarotto, F.; Franke, G.; Gaspero, M.; Gerke, C.; Knies, G.; Lewendel, B.; Meyer, J.; Michelsen, U.; Pape, K.H.; Stella, B.; Timm, U.; Winter, G.G.; Zachara, M.; Zimmermann, W.
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.); PLUTO Collaboration1984
Deutsches Elektronen-Synchrotron (DESY), Hamburg (Germany, F.R.); PLUTO Collaboration1984
AbstractAbstract
[en] We have measured the reaction γγ->π+π-π0 using the PLUTO detector at PETRA. A pronounced enhancement is seen in the π+π-π0 mass distribution corresponding to the A2 meson. The event configuration in this enhancement favors a 2+ spin-parity assignment. The value of GAMMAsub(γγ)=1.06+-0.18+-0.19 keV obtained for the two photon decay width of the A2 agrees with previous measurements and with quark model predictions. (orig.)
Primary Subject
Source
Sep 1984; 15 p
Record Type
Report
Literature Type
Numerical Data
Report Number
Country of publication
A2-1310 RESONANCES, EFFECTIVE MASS, ELECTRON-POSITRON INTERACTIONS, ELECTRONS, ELECTROPRODUCTION, EXPERIMENTAL DATA, GEV RANGE 01-10, GEV RANGE 10-100, MASS SPECTRA, PAIR PRODUCTION, PARITY, PARTICLE WIDTHS, PHOTON-PHOTON INTERACTIONS, PHOTOPRODUCTION, PIONS MINUS, PIONS NEUTRAL, PIONS PLUS, POSITRONS, RADIATIVE DECAY, SPIN
A RESONANCES, ANGULAR MOMENTUM, ANTILEPTONS, ANTIMATTER, ANTIMESONS, ANTIPARTICLES, BASIC INTERACTIONS, BOSONS, DATA, DECAY, ELECTROMAGNETIC INTERACTIONS, ELEMENTARY PARTICLES, ENERGY RANGE, FERMIONS, GEV RANGE, HADRONS, INFORMATION, INTERACTIONS, LEPTON-LEPTON INTERACTIONS, LEPTONS, MASS, MATTER, MESON RESONANCES, MESONS, NUMERICAL DATA, PARTICLE DECAY, PARTICLE INTERACTIONS, PARTICLE PRODUCTION, PARTICLE PROPERTIES, PIONS, PSEUDOSCALAR ANTIMESONS, PSEUDOSCALAR MESONS, RESONANCE PARTICLES, SPECTRA
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