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Search for narrow resonances in e+e− annihilation at c.m. energies between 29.90 and 31.46 GeV

1980; Elsevier BV; Volume: 91; Issue: 1 Linguagem: Inglês

10.1016/0370-2693(80)90682-6

ISSN

1873-2445

Autores

W. Bartel, D. Cords, P. Dittmann, R. Eichler, R. Felst, D. Haidt, S. Kawabata, H. Krehbiel, B. Naroska, L.H. O'Neill, Josefine A. Olsson, P. Steffen, E. Elsen, M. Helm, A. Petersen, P. Warming, G. Weber, H. Drumm, J. Heintze, G. Heinzelmann, R.D. Heuer, J. von Krogh, P. Lennert, Hiroshi Matsumura, T. Nozaki, H. Rieseberg, A. Wagner, D.C. Darvill, F. Foster, G. Hughes, H. Wriedt, J. Allison, J.C. Armitage, A. H. Ball, I. P. Duerdoth, J.F. Hassard, F. K. Loebinger, H. McCann, B. King, A.A. Macbeth, H.E. Mills, P.G. Murphy, H. Prosper, K. Stephens, D. Clarke, M. Goddard, R. Hedgecock, R. Marshall, G.F. Pearce, M. Imori, Takumi Kobayashi, S. Komamiya, M. Koshiba, M. Minowa, S. Orito, A. Sato, T. Suda, H. Takeda, Y. Totsuka, Y. Watanabe, S. Yamada, C. Yanagisawa,

Tópico(s)

High-Energy Particle Collisions Research

Resumo

A search for narrow resonances in e+e− annihilation at c.m. energies between 29.90 and 31.46 GeV provides no evidence for the existence of such states. The 90% confidence upper limit on the integrated resonance cross section is 38 nb MeV, significantly below the value expected for the lowest (t,t̄) bound state.

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