Measurement of the polarized structure function σ LT′ for p(e,e′p) π0 in the Δ (1232) resonance region Article

cited authors

  • Joo, K; Smith, LC; Burkert, VD; Minehart, R; Adams, G; Ambrozewicz, P; Anciant, E; Anghinolfi, M; Asavapibhop, B; Audit, G; Auger, T; Avakian, H; Bagdasaryan, H; Ball, JP; Barrow, S; Battaglieri, M; Beard, K; Bektasoglu, M; Bellis, M; Benmouna, N; Bianchi, N; Biselli, AS; Boiarinov, S; Bouchigny, S; Bradford, R; Branford, D; Briscoe, WJ; Brooks, WK; Butuceanu, C; Calarco, JR; Carman, DS; Carnahan, B; Cetina, C; Ciciani, L; Cole, PL; Coleman, A; Cords, D; Corvisiero, P; Crabb, D; Crannell, H; Cummings, JP; DeSanctis, E; DeVita, R; Degtyarenko, PV; Denizli, H; Dennis, L; Dharmawardane, KV; Dhuga, KS; Djalali, C; Dodge, GE; Doughty, D; Dragovitsch, P; Dugger, M; Dytman, S; Dzyubak, OP; Eckhause, M; Egiyan, H; Egiyan, KS; Elouadrhiri, L; Empl, A; Eugenio, P; Fatemi, R; Feuerbach, RJ; Ficenec, J; Forest, TA; Funsten, H; Gaff, SJ; Gavalian, G; Gilad, S; Gilfoyle, GP; Giovanetti, KL; Girard, P; Gordon, CIO; Griffioen, K; Guidal, M; Guillo, M; Guo, L; Gyujyan, V; Hadjidakis, C; Hakobyan, RS; Hardie, J; Heddle, D; Heimberg, P; Hersman, FW; Hicks, K; Hicks, RS; Holtrop, M; Hu, J; Hyde-Wright, CE; Ilieva, Y; Ito, MM; Jenkins, D; Kelley, JH; Khandaker, M; Kim, KY; Kim, K; Kim, W; Klein, A; Klein, FJ; Klimenko, AV

fiu authors

abstract

  • The polarized longitudinal-transverse structure function σ LT′ has been measured in the Δ(1232) resonance region at Q2 = 0.40 and 0.65 GeV2. Data for the p(e →,e′p) π0 reaction were taken at Jefferson Lab with the CEBAF large acceptance spectrometer (CLAS) using longitudinally polarized electrons at an energy of 1.515 GeV. For the first time a complete angular distribution was measured, permitting the separation of different nonresonant amplitudes using a partial wave analysis. Comparison with previous beam asymmetry measurements at MAMI indicate a deviation from the predicted Q2 dependence of σLT′ using recent phenomenological models.

publication date

  • January 1, 2003

start page

  • 322011

end page

  • 322015

volume

  • 68

issue

  • 3