Measurement of the Radiative Width of the $\mathrm{A_2(1320)}$ in Two-Photon Interactions
- Althoff, M.
- Braunschweig, W.
- Hartmann, H.
- Jocksch, A.
- Kolanoski, H.
- Kuck, H.
- Mertens, V.
- Wedemeyer, R.
- Foster, B.
- Bernardi, E.
- Eisenberg, Y.
- Eskreys, A.
- Gerhards, R.
- Gather, K.
- Hultschig, H.
- Joos, P.
- Klima, B.
- Kowalski, H.
- Ladage, A.
- Lohr, B.
- Luke, D.
- Mattig, Peter
- Notz, D.
- Kirschfink, F. J.
- Revel, D.
- Ronat, E.
- Trines, D.
- Tymieniecka, T.
- Walczak, R.
- Wolf, G.
- Zeuner, W.
- Hilger, E.
- Kracht, T.
- Krasemann, H. L.
- Martyn, H. U.
- Kruger, J.
- Lohrmann, E.
- Poelz, G.
- Posnecker, K. U.
- Binnie, D. M.
- Dornan, P. J.
- Garbutt, D. A.
- Jenkins, Colin
- Jones, W. G.
- Sedgbeer, J. K.
- Rosskamp, P.
- Su, D.
- Thomas, J.
- Wan Abdullah, W. A. T.
- Barreiro, F.
- Ros, E.
- Bowler, M. G.
- Bull, P.
- Cashmore, R. J.
- Dauncey, Paul D.
- Devenish, R.
- Wallraff, W.
- Heath, G.
- Mellor, D.
- Ratoff, P.
- Lloyd, S. L.
- Forden, G. E.
- Hart, J. C.
- Hasell, D. K.
- Saxon, D. H.
- Brandt, S.
- Holder, M.
- Bock, B.
- Labarga, L.
- Neumann, B.
- Karshon, U.
- Mikenberg, G.
- Mir, R.
- Montag, A.
- Shapira, A.
- Yekutieli, G.
- Baranko, G.
- Caldwell, A.
- Eisenmann, J.
- Cherney, Michael G.
- Izen, J. M.
- Ritz, S.
- Strom, David M.
- Takashima, M.
- Wicklund, E.
- Wu, Sau Lan
- Zobernig, G.
- TASSO Collaboration
- Fischer, H. M.
DOIAbstract
The reactione+e−→e+e− A2 (1320) has been observed by detecting the decayA2→π+,π-π0. The two-photon width of theA2 has been measured to be Г(A2→γγ)=(0.09±0.27 (stat)±0.16 (syst)) keV. The cross section σ(γγ→π+,π-π0 has been determined outside theA2 resonance region
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