Observation of an ωπ0 state of mass 1.25 GeV produced by photons of energy 20–70 GeV
D. Aston, D. Newton, K. Héinloth, Phil Flynn(Glasgow Life), J. Bröring, P. Feller(European Organization for Nuclear Research), G. Lafferty, D. Ezra(European Organization for Nuclear Research), A.B. Clegg, P.G. Hampson, M. Jung(Glasgow Life), J.S. Hutton, F. Kovacs(European Organization for Nuclear Research), B. Drévillon, D. Clarke(Rutherford Appleton Laboratory), Michael Draper(The University of Texas at San Antonio Health Science Center), S. Katsanevas(European Gravitational Observatory), R.J. Ellison, B. R. Kumar, W. Graves, W. Galbraith, F. Friese(European Organization for Nuclear Research), G. De Rosny(École Polytechnique), D. Mercer(European Organization for Nuclear Research), B. Dalmagne(Université Paris Cité), M. Ibbotson(Glasgow Life), K. Müller, M. Goldberg(Glasgow Life), G.W. London, A. H. Ball, P. Bussey(Glasgow Life), J.-M. Lévy, A. Ferrer(École Polytechnique), J.B. Lane(Glasgow Life), B. Diekmann(University of Bonn), S. Gill, B. Grossetête(École Polytechnique), J.P. Dufey, I. P. Duerdoth, R.E. Hughes-Jones, R. Bailey, B. Bouquet(École Polytechnique), J. Litt, R. George, J.V. Morris, Graham Brookes, V. Liebenau, M. Atkinson(Rutherford Appleton Laboratory), M.A.R. Kemp
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