[Formula Presented] reaction studied in the [Formula Presented] mass region using polarization asymmetries
Measurements of the angular distributions of target and double-spin asymmetries for the [Formula Presented] in the exclusive channel [Formula Presented] obtained at the Jefferson Lab in the [Formula Presented] range from 0.5 to [Formula Presented] are presented. Results of the asymmetries are compared with the unitary isobar model [D. Drechsel et al., Nucl. Phys. A645, 145 (1999)], dynamical models [T. Sato and T. S. Lee, Phys. Rev. C 54, 2660 (1996); S. S. Kamalov et al., Phys. Lett. B 27, 522 (2001)], and the effective Lagrangian theory [R. M. Davidson et al., Phys. Rev. D 43, 71 (1991)]. Sensitivity to the different models was observed, particularly in relation to the description of background terms on which the target asymmetry depends significantly. © 2003 The American Physical Society.
Biselli, A; Adams, GS; Amaryan, MJ; Anciant, E; Anghinolfi, M; Asavapibhop, B; Asryan, G; Audit, G; Auger, T; Avakian, H; Barrow, S; Battaglieri, M; Beard, K; Bektasoglu, M; Bertozzi, W; Bianchi, N; Boiarinov, S; Bonner, BE; Bosted, P; Bouchigny, S; Bradford, R; Branford, D; Brooks, WK; Bueltmann, S; Burkert, VD; Calarco, JR; Carman, DS; Carnahan, B; Cetina, C; Ciciani, L; Cole, PL; Coleman, A; Connelly, J; Cords, D; Corvisiero, P; Crabb, D; Crannell, H; Cummings, J; Sanctis, E; Vita, R; Degtyarenko, PV; Demirchyan, RA; Denizli, H; Dennis, LC; Dharmawardane, KV; Dhuga, KS; Djalali, C; Dodge, GE; Domingo, J; Doughty, D; Dragovitsch, P; Dugger, M; Dytman, S; Eckhause, M; Efremenko, YV; Egiyan, H; Egiyan, KS; Elouadrhiri, L; Empl, A; Eugenio, P; Farhi, L; Fatemi, R; Feuerbach, RJ; Ficenec, J; Fissum, K; Forest, TA; Freyberger, A; Frolov, V; Funsten, H; Gaff, SJ; Gai, M; Gavalian, G; Gavrilov, VB; Gilad, S; Gilfoyle, GP; Giovanetti, KL; Girard, P; Golovatch, E; Griffioen, KA; Guidal, M; Guillo, M; Guo, L; Gyurjyan, V; Hanock, D; Hardie, J; Heddle, D; Hersman, FW; Hicks, K; Hicks, RS; Holtrop, M; Hu, J; Hyde-Wright, CE; Ito, MM; Jenkins, D; Joo, K; Kelley, JH; Khandaker, M; Kim, KY; Kim, K; Kim, W
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