Measurement of the Sigma pi photoproduction line shapes near the Lambda(1405)
- Moriya, K.
- Schumacher, R.A.
- Adhikari, K.P.
- Adikaram, D.
- Aghasyan, M.
- Anderson, M.D.
- Anefalos Pereira, S.
- Ball, J.
- Baltzell, N.A.
- Battaglieri, M.
- Batourine, V.
- Bedlinskiy, I.
- Bellis, M.
- Biselli, A.S.
- Bono, J.
- Boiarinov, S.
- Briscoe, W.J.
- Burkert, V.D.
- Carman, D.S.
- Celentano, A.
- Chandavar, S.
- Charles, G.
- Cole, P.L.
- Collins, P.
- Crede, V.
- D'Angelo, A.
- Dashyan, N.
- De Sanctis, E.
- De Vita, R.
- Deur, A.
- Dey, B.
- Djalali, C.
- Doughty, D.
- Dupre, R.
- Egiyan, H.
- El Fassi, L.
- Eugenio, P.
- Fedotov, G.
- Fegan, S.
- Fersch, R.
- Fleming, J.A.
- Gevorgyan, N.
- Gilfoyle, G.P.
- Giovanetti, K.L.
- Girod, F.X.
- Goetz, J.T.
- Gohn, W.
- Golovatch, E.
- Gothe, R.W.
- Griffioen, K.A.
- Guidal, M.
- Hafidi, K.
- Hakobyan, H.
- Hanretty, C.
- Harrison, N.
- Heddle, D.
- Hicks, K.
- Ho, D.
- Holtrop, M.
- Hyde, C. E.
- Ilieva, Y.
- Ireland, D.G.
- Ishkhanov, B.S.
- Isupov, E.L.
- Jo, H.S.
- Keller, D.
- Khandaker, M.
- Khetarpal, P.
- Kim, A.
- Kim, W.
- Klein, A.
- Klein, F.J.
- Koirala, S.
- Kubarovsky, A.
- Kubarovsky, V.
- Kuleshov, S.V.
- Kvaltine, N.D.
- Livingston, K.
- Lu, H.Y.
- Macgregor, I.J.D.
- Markov, N.
- Mayer, M.
- Mccracken, M.
- Mckinnon, B.
- Mestayer, M.D.
- Meyer, C.A.
- Mirazita, M.
- Mineeva, T.
- Mokeev, V.
- Montgomery, R.A.
- Munevar, E.
- Munoz Camacho, C.
- Nadel-Turonski, P.
- Nasseripour, R.
- Nepali, C.S.
- Niccolai, S.
- Niculescu, G.
- Niculescu, I.
- Osipenko, M.
- Ostrovidov, A.I.
- Pappalardo, L.L.
- Paremuzyan, R.
- Park, K.
- Park, S.
- Pasyuk, E.
- Phelps, E.
- Phillips, J.J.
- Pisano, S.
- Pivnyuk, N.
- Pogorelko, O.
- Pozdniakov, S.
- Price, J.W.
- Procureur, S.
- Protopopescu, D.
- Rimal, D.
- Ripani, M.
- Ritchie, B.G.
- Rosner, G.
- Rossi, P.
- Sabatié, F.
- Saini, M.S.
- Salgado, C.
- Schott, D.
- Seder, E.
- Seraydaryan, H.
- Sharabian, Y.G.
- Smith, E.S.
- Smith, G.D.
- Sober, D.I.
- Stepanyan, S.S.
- Stepanyan, S.
- Stoler, P.
- Strakovsky, I.I.
- Strauch, S.
- Taiuti, M.
- Tang, W.
- Taylor, S.
- Taylor, C.E.
- Tian, Ye
- Tkachenko, S.
- Torayev, B.
- Ungaro, M.
- Vernarsky, B.
- Vlassov, A.V.
- Voskanyan, H.
- Voutier, E.
- Walford, N.K.
- Watts, D.P.
- Weygand, D.P.
- Williams, M.
- Zachariou, N.
- Zana, L.
- Zhang, J.
- Zhao, Z.W.
- Zonta, I.
DOIAbstract
26 pages, to be submitted to Phys. Rev. CThe reaction gamma + p -> K+ + Sigma + pi was used to determine the invariant mass distributions or "line shapes" of the Sigma+ pi-, Sigma- pi+ and Sigma0 pi0 final states, from threshold at 1328 MeV/c^2 through the mass range of the Lambda(1405) and the Lambda(1520). The measurements were made with the CLAS system at Jefferson Lab using tagged real photons, for center-of-mass energies 1.95 < W < 2.85 GeV. The three mass distributions differ strongly in the vicinity of the I=0 \Lambda(1405), indicating the presence of substantial I=1 strength in the reaction. Background contributions to the data from the Sigma0(1385) and from K^* Sigma production were studied and shown to have negligible influence. T...
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