Near-threshold photoproduction of ϕ mesons from deuterium

Qian, X; Chen, W; Gao, H; Hicks, K; Kramer, K; Laget, J; Mibe, T; Qiang, Y; Stepanyan, S; Tedeschi, D; Xu, W; Adhikari, K; Amaryan, M; Anghinolfi, M; Ball, J; Battaglieri, M; Batourine, V; Bedlinskiy, I; Bellis, M; Biselli, A; Bookwalter, C; Branford, D; Briscoe, W; Brooks, W; Burkert, V; Careccia, S; Carman, D; Cole, P; Collins, P; Crede, V; D'Angelo, Annalisa; Daniel, A; Dashyan, N; De Vita, R; De Sanctis, E; Deur, A; Dey, B; Dhamija, S; Djalali, C; Doughty, D; Dupre, R; Egiyan, H; El Alaoui, A; Eugenio, P; Fegan, S; Gabrielyan, M; Gevorgyan, N; Gilfoyle, G; Giovanetti, K; Girod, F; Goetz, J; Gohn, W; Gothe, R; Graham, L; Griffioen, K; Guidal, M; Guo, L; Hafidi, K; Hakobyan, H; Hanretty, C; Hassall, N; Holtrop, M; Ilieva, Y; Ireland, D; Jawalkar, S; Jo, H; Joo, K; Keller, D; Khandaker, M; Khetarpal, P; Kim, A; Kim, W; Klein, A; Klein, F; Konczykowski, P; Kubarovsky, V; Kuleshov, S; Kuznetsov, V; Livingston, K; Martinez, D; Mayer, M; Mcandrew, J; Mccracken, M; Mckinnon, B; Meyer, C; Mikhailov, K; Mineeva, T; Mirazita, M; Mokeev, V; Moreno, B; Moriya, K; Morrison, B; Moutarde, H; Munevar, E; Nadel Turonski, P; Ni, A; Niccolai, S; Niculescu, I; Niroula, M; Osipenko, M; Ostrovidov, A; Paremuzyan, R; Park, K; Park, S; Pereira, S; Pisano, Silvia; Pogorelko, O; Pozdniakov, S; Price, J; Procureu, S; Protopopescu, D; Ricco, G; Ripani, M; Ritchie, B; Rosner, G; Rossi, P; Sabatie, F; Saini, M; Salgado, C; Schott, D; Schumacher, R; Seder, E; Seraydaryan, H; Sharabian, Y; Smith, E; Smith, G; Sober, D; Sokhan, D; Stepanyan, S; Stoler, P; Strakovsky, I; Strauch, S; Taiuti, M; Taylor, C; Tkachenko, S; Ungaro, M; Vernarsky, B; Vineyard, M; Voutier, E; Weinstein, L; Weygand, D; Wood, M; Zachariou, N; Zana, L; Zhang, J; Zhao, B; Zhao, Z.

doi:10.1016/j.physletb.2010.12.065

We report the first, kinematically-complete measurement of the differential cross section of phi-meson photoproduction from deuterium near the production threshold for a proton using the CLAS detector and a tagged-photon beam in Hall B at Jefferson Lab. The measurement was carried out by a triple coincidence detection of a proton, K(+) and K(-) near the theoretical production threshold of 1.57 GeV. The extracted differential cross sections d sigma/dt for the initial photon energy range of 1.65-1.75 GeV are consistent with predictions based on a quasifree mechanism. Our finding is different from recent LEPS results on phi-meson photoproduction from deuterium in a similar incident photon energy range, but in a different momentum transfer region.