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  • Charge-exchange photoproduc...
    Condo, G.T.; Handler, T.; Shimony, J.; Abe, K.; Austern, M.; Armenteros, R.; Bacon, T.C.; Ballam, J.; Bingham, H.H.; Brau, J.E.; Braune, K.; Brick, D.; Bugg, W.M.; Butler, J.M.; Cameron, W.; Cohn, H.O.; Colley, D.C.; Dado, S.; Diamond, R.; Dingus, P.; Erickson, R.; Falicov, A.; Field, R.C.; Fortney, L.R.; Franek, B.; Fujiwara, N.; Glanzman, T.; Godfrey, I.M.; Goldberg, J.J.; Goshaw, A.T.; Hall, G.; Hancock, E.R.; Hargis, H.J.; Hart, E.L.; Harwin, M.J.; Hasegawa, K.; Hulsizer, R.I.; Jobes, M.; Kafka, T.; Kalmus, G.E.; Kelsey, D.P.; Kent, J.; Kitagaki, T.; Levy, A.; Lucas, P.W.; Mann, W.A.; McCrory, E.S.; Merenyi, R.; Milburn, R.; Milstene, C.; Moffeit, K.C.; Napier, A.; Noguchi, S.; Ochiai, F.; O'Dell, V.R.; O'Neale, S.; Palounek, A.P.T.; Pless, I.A.; Rankin, P.; Robertson, W.J.; Sagawa, H.; Sato, T.; Schneps, J.; Sewell, S.J.; Shank, J.; Shapiro, A.M.; Sugahara, R.; Suzuki, A.; Takahashi, K.; Tamai, K.; Tanaka, S.; Tether, S.; Waide, D.A.; Walker, W.D.; Widgoff, M.; Wilkins, C.G.; Wolb; SLAC Hybrid Facility Photon Collaboration

    Physical review. D, Particles and fields, 06/1990, Letnik: 41:11, Številka: 11
    Journal Article

    We examine the negative 3{pi} final state produced in association with {Delta}{sup ++}(1232) in the reaction {gamma}{ital p}{r arrow}{Delta}{sup ++}{pi}{sup +}{pi}{sup {minus}}{pi}{sup {minus}} at an incident photon energy of 19.3 GeV. The most prominent enhancement in the 3{pi} spectrum occurs at a mass and with a width consistent with the parameters of the {ital a}{sub 2}(1320). This identification is confirmed by the various angular distributions. The {ital a}{sub 2} production cross section, corrected for efficiencies and alternate {ital a}{sub 2} decay modes, is 0.45{plus minus}0.05 {mu}b.