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Han, K.; Klopfenstein, C.; Mageras, G.; Dietl, H.; Eigen, G.; Fonseca, V.; Franzini, P.; Horstkotte, J.E.; Imlay, R.; Lee-Franzini, J.; Levman, G.; Lorenz, E.; Lovelock, D.M.J.; Metcalf, W.; Romero, L.; Schamberger, R.D.; Son, D.; Sreedhar, V.; Tuts, P.M.; Youssef, S.; Zhao, T.
Max-Planck-Institut fuer Physik und Astrophysik, Muenchen (Germany, F.R.). Werner-Heisenberg-Inst. fuer Physik1985
Max-Planck-Institut fuer Physik und Astrophysik, Muenchen (Germany, F.R.). Werner-Heisenberg-Inst. fuer Physik1985
AbstractAbstract
[en] We have observed production of monochromatic low energy photons in e+e- interactions between 10.6 and 11.2 GeV/c2. This signal is interpreted as due to the decay B*->B+γ and is the first experimental evidence for the existence of vector banti u or banti d bound states. We determine the mass difference of the vector and pseudoscalar states, M(B*)-M(B), to be 52+-2+-4 MeV. (orig.)
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Mar 1985; 15 p
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Report
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Numerical Data
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BOSONS, CROSS SECTIONS, DATA, DECAY, ELEMENTARY PARTICLES, ENERGY RANGE, ENERGY-LEVEL TRANSITIONS, GEV RANGE, HADRONS, INFORMATION, INTERACTIONS, LEPTON-LEPTON INTERACTIONS, MASS, MASSLESS PARTICLES, MESON RESONANCES, MESONS, MULTIPOLE TRANSITIONS, NUMERICAL DATA, PARTICLE DECAY, PARTICLE INTERACTIONS, PARTICLE PROPERTIES, RESONANCE PARTICLES, SPECTRA
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