Production of KK-pairs in photon-photon collisions and the excitation of the tensor meson f′(1515)

M. Althoff, R. Brandelik, W. Braunschweig, K. Gather, F. J. Kirschfink, K. Lübelsmeyer, H. U. Martyn, G. Peise, J. Rimkus, H. G. Sander, D. Schmitz, H. Siebke, D. Trines, W. Wallraff, H. Boerner, H. M. Fischer, H. Hartmann, E. Hilger, W. Hillen, G. KnopL. Köpke, H. Kolanoski, H. Kück, R. Wedemeyer, N. Wermes, M. Wollstadt, H. Burkhardt, S. Cooper, J. Franzke, D. Hochman, H. Hultschig, P. Joos, W. Koch, U. Kötz, H. Kowalski, A. Ladage, B. Löhr, D. Lüke, P. Mättig, K. H. Mess, D. Notz, J. Pyrlik, D. R. Quarrie, R. Riethmüller, W. Schütte, P. Söding, G. Wolf, G. Yekutieli, R. Fohrmann, H. L. Krasemann, P. Leu, E. Lohrmann, D. Pandoulas, G. Poelz, P. Schmüser, B. H. Wiik, I. Al-Agil, R. Beuselinck, D. M. Binnie, A. J. Campbell, P. J. Dornan, B. Foster, D. A. Garbutt, T. D. Jones, W. G. Jones, J. McCardle, J. K. Sedgebeer, K. W. Bell, M. G. Bowler, I. C. Brock, R. J. Cashmore, R. Carnegie, P. E.L. Clarke, R. Devenish, P. Grossmann, J. Illingworth, S. L. Lloyd, G. L. Salmon, J. Thomas, T. R. Wyatt, C. Youngman, J. C. Hart, J. Harvey, J. Proudfoot, D. H. Saxon, P. L. Woodworth, D. Heyland, M. Holder, E. Duchovni, Y. Eisenberg, U. Karshon, G. Mikenberg, D. Revel, E. Ronat, A. Shapira, T. Barklow, M. Cherney, T. Meyer, G. Rudolph, H. Venkataramania, E. Wicklund, Sau Lan Wu, G. Zobernig

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Abstract

We have observed exclusive production of K+K- and KS OKS O pairs and the excitation of the f′(1515) tensor meson in photon-photon collisions. Assuming the f′ to be production in a helicity 2 state, we determine Λ(f′ → γγ) B(f′ → KK) = 0.11 ± 0.02 ± 0.04 keV. The non-strange quark of the f′ is found to be less than 3% (95% CL). For the θ(1640) we derive an upper limit for the product Λ(θ rarr; γγ KK) <0.03 keV (95% CL).

Original languageEnglish (US)
Pages (from-to)216-222
Number of pages7
JournalPhysics Letters B
Volume121
Issue number2-3
DOIs
StatePublished - Jan 27 1983

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

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    Althoff, M., Brandelik, R., Braunschweig, W., Gather, K., Kirschfink, F. J., Lübelsmeyer, K., Martyn, H. U., Peise, G., Rimkus, J., Sander, H. G., Schmitz, D., Siebke, H., Trines, D., Wallraff, W., Boerner, H., Fischer, H. M., Hartmann, H., Hilger, E., Hillen, W., ... Zobernig, G. (1983). Production of KK-pairs in photon-photon collisions and the excitation of the tensor meson f′(1515). Physics Letters B, 121(2-3), 216-222. https://doi.org/10.1016/0370-2693(83)90917-6