Two-photon excitation of the tensor meson f0(1270)

Autor: R.C.E. Devenish, Walter Dr. Hillen, G. Peise, R. Wedemeyer, R. J. Cashmore, T. Barklow, W. Koch, D. Trines, G. Poelz, S. Yarker, H. M. Fischer, P. Mättig, U. Karshon, Georg Zobernig, D. R. Quarrie, Y. Eisenberg, D. M. Binnie, U. Kötz, R. Riethmüller, C. Youngman, G. Rudolph, P. Joos, Ehud Duchovni, D. Pandoulas, B. Foster, D. G. Cassel, P. Koehler, D. A. Garbutt, S. Cooper, E. Wicklund, W. Braunschweig, D. Heyland, W. Wallraff, D.W. Schmitz, L. Köpke, John Freeman, M. Ogg, Hermann Kolanoski, J. K. Sedgbeer, P. Grossmann, Norbert Wermes, D. Notz, H. G. Sander, R. Rüsch, A. Shapira, O. Römer, Gl Salmon, M. Holder, K. Gather, K. Lübelsmeyer, P. Söding, P. J. Dornan, G. Mikenberg, I. Al-Agil, R. Beuselinck, H. Burkhardt, T. Meyer, M. Wollstadt, D. Revel, P. Schmüser, T. R. Wyatt, P. Lecomte, H. Hartmann, A. Ladage, R. Fohrmann, E. Hilger, J. Pyrlik, Stephen Lloyd, R. Brandelik, H. L. Lynch, A. Schultz von Dratzig, I. C. Brock, P. Leu, Gy. Wolf, D. Lüke, H. Boerner, W. G. Jones, H. U. Martyn, John Illingworth, P. L. Woodworth, J. Rimkus, H. Kowalski, K. W. Beli, J. Proudfoot, D. H. Saxon, E.E. Ronat, G. Knop, R. A. Stern, H. Hultschig, B. H. Wiik, John Hart, Sau Lan Wu, F. J. Kirschfink

Publikováno v: Zeitschrift für Physik C Particles and Fields. 10(2)

We have measured charged particle pair production in two-photon scattering at the e+e- storage ring PETRA. While the main source of such events is the production of lepton pairs, the presence of an additional process is clearly indicated by the measu

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