1. Measurement of the radiative width of the η′(958) in two-photon interactions
- Author
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B. Löhr, K. Lübelsmeyer, P. Joos, D.W. Schmitz, E. Wicklund, R.C.E. Devenish, P. J. Dornan, Y. Eisenberg, W. G. Jones, W. Braunschweig, R. Fohrmann, H. U. Martyn, V. Mertens, M. Holder, H. Hultschig, C. M. Hawkes, D. Strom, H. M. Fischer, M. Rushton, B. H. Wiik, John Hart, Ch. Xiao, Guenter Wolf, G. Rudolph, G. Yekutieli, T. Kracht, R. J. Cashmore, G. Baranko, T. Tymieniecka, M. Takashima, Sau Lan Wu, Philip Bull, U. Kötz, R. Mir, H. Kück, D. A. Garbutt, R. J. Nowak, H. Siebke, M. Winik, Georg Zobernig, M. Dittmar, C. Jenkins, H. Kowalski, G. Kreutz, D. Trines, J. Harvey, G. Poelz, E. Lohrmann, P. Grossmann, K. U. Pösnecker, A. Ladage, T. D. Jones, B. Foster, D. M. Binnie, M. Althoff, J. McCardle, D. Notz, W. Wallraff, W. Schütte, K. Gather, A. Shapira, Fernando Barreiro, J. Eisenmann, G. Mikenberg, D. Pandoulas, F. J. Kirschfink, R. Beuselinck, W. A. T. Wan Abdullah, H. Venkataramania, Hermann Kolanoski, E.E. Ronat, D. K. Hasell, J. Pyrlik, P. E. L. Clarke, E. Hilger, R. Wedemeyer, G. Knop, M. Mermikides, D. Revel, Joseph Izen, H. Hartmann, L. Köpke, M. Cherney, J. Thomas, K. W. Bell, P. Mättig, A. Jocksch, S. Brandt, K. J. Sedgbeer, M. G. Bowler, Hl Krasemann, C. Youngman, H. G. Sander, P. Rosskamp, Ehud Duchovni, A. Eskreys, A. Caldwell, Stephen Lloyd, B. Neumann, U. Karshon, D. H. Saxon, G. E. Forden, D. Lüke, S. Ritz, and P. Leu
- Subjects
Physics ,Nuclear and High Energy Physics ,Two-photon excitation microscopy ,Product (mathematics) ,Transverse momentum ,Radiative transfer ,State (functional analysis) ,Limit (mathematics) ,Atomic physics - Abstract
The reaction e + e − →e + e − η ′(958) has been observed by detecting the final state π + π − γ . The two-photon width of the η′ has been measured to be Γ ( η ′→ γγ ) = 5.1±0.4±0.7 keV. A search for the ι (1440) has been made in the ϱ 0 γ final state. An upper limit has been obtained for the product Γ ( ι (1440) → γ ) gg ), B ( ι → ϱ 0 γ )
- Published
- 1984
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