ep→ep π0 reaction studied in the Δ(1232) mass region using polarization asymmetries

A. Biselli; G. S. Adams; M. J. Amaryan; E. Anciant; M. Anghinolfi; B. Asavapibhop; G. Asryan; G. Audit; T. Auger; H. Avakian; S. Barrow; M. Battaglieri; K. Beard; M. Bektasoglu; W. Bertozzi; N. Bianchi; S. Boiarinov; B. E. Bonner; P. Bosted; S. Bouchigny; R. Bradford; D. Branford; W. K. Brooks; S. Bueltmann; V. D. Burkert; J. R. Calarco; D. S. Carman; B. Carnahan; C. Cetina; L. Ciciani; P. L. Cole; A. Coleman; J. Connelly; D. Cords; P. Corvisiero; D. Crabb; H. Crannell; J. Cummings; E. de Sanctis; R. de Vita; P. V. Degtyarenko; R. A. Demirchyan; H. Denizli; L. C. Dennis; K. V. Dharmawardane; K. S. Dhuga; C. Djalali; G. E. Dodge; J. Domingo; D. Doughty; P. Dragovitsch; Michael Dugger; S. Dytman; M. Eckhause; Y. V. Efremenko; H. Egiyan; K. S. Egiyan; L. Elouadrhiri; A. Empl; P. Eugenio; L. Farhi; R. Fatemi; R. J. Feuerbach; J. Ficenec; K. Fissum; T. A. Forest; A. Freyberger; V. Frolov; H. Funsten; S. J. Gaff; M. Gai; G. Gavalian; V. B. Gavrilov; S. Gilad; G. P. Gilfoyle; K. L. Giovanetti; P. Girard; E. Golovatch; K. A. Griffioen; M. Guidal; M. Guillo; L. Guo; V. Gyurjyan; D. Hanock; J. Hardie; D. Heddle; F. W. Hersman; K. Hicks; R. S. Hicks; M. Holtrop; J. Hu; C. E. Hyde-Wright; M. M. Ito; D. Jenkins; K. Joo; J. H. Kelley; M. Khandaker; K. Y. Kim; K. Kim; W. Kim; A. Klein; F. J. Klein; A. V. Klimenko; M. Klusman; M. Kossov; L. H. Kramer; Y. Kuang; J. Kuhn; S. E. Kuhn; J. Lachniet; J. M. Laget; D. Lawrence; G. A. Leksin; A. Longhi; K. Loukachine; R. W. Major; J. J. Manak; C. Marchand; S. K. Matthews; S. McAleer; J. W C McNabb; J. McCarthy; B. A. Mecking; M. D. Mestayer; C. A. Meyer; R. Minehart; M. Mirazita; R. Miskimen; V. Mokeev; V. Muccifora; J. Mueller; L. Y. Murphy; G. S. Mutchler; J. Napolitano; S. O. Nelson; G. Niculescu; B. Niczyporuk; R. A. Niyazov; M. Nozar; J. T. O'Brien; G. V. O'Rielly; M. S. Ohandjanyan; M. Osipenko; K. Park; Y. Patois; G. A. Peterson; S. Philips; N. Pivnyuk; D. Pocanic; O. Pogorelko; E. Polli; B. M. Preedom; J. W. Price; L. M. Qin; B. A. Raue; G. Riccardi; G. Ricco; M. Ripani; Barry Ritchie; S. Rock; F. Ronchetti; P. Rossi; D. Rowntree; P. D. Rubin; K. Sabourov; C. W. Salgado; V. Sapunenko; M. Sargsyan; R. A. Schumacher; V. S. Serov; Y. G. Sharabian; J. Shaw; S. M. Shuvalov; S. Simionatto; A. Skabelin; E. S. Smith; L. C. Smith; T. Smith; D. I. Sober; L. Sorrell; M. Spraker; S. Stepanyan; P. Stoler; I. I. Strakovsky; M. Taiuti; S. Taylor; D. Tedeschi; U. Thoma; R. Thompson; L. Todor; T. Y. Tung; C. Tur; M. Ungaro; M. F. Vineyard; A. Vlassov; K. Wang; L. B. Weinstein; H. Weller; R. Welsh; D. P. Weygand; S. Whisnant; M. Witkowski; E. Wolin; A. Yegneswaran; J. Yun; B. Zhang; J. Zhao; Z. Zhou

ep→ep π⁰ reaction studied in the Δ(1232) mass region using polarization asymmetries

A. Biselli, G. S. Adams, M. J. Amaryan, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Asryan, G. Audit, T. Auger, H. Avakian, S. Barrow, M. Battaglieri, K. Beard, M. Bektasoglu, W. Bertozzi, N. Bianchi, S. Boiarinov, B. E. Bonner, P. Bosted, S. BouchignyR. Bradford, D. Branford, W. K. Brooks, S. Bueltmann, V. D. Burkert, J. R. Calarco, D. S. Carman, B. Carnahan, C. Cetina, L. Ciciani, P. L. Cole, A. Coleman, J. Connelly, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. Cummings, E. de Sanctis, R. de Vita, P. V. Degtyarenko, R. A. Demirchyan, H. Denizli, L. C. Dennis, K. V. Dharmawardane, K. S. Dhuga, C. Djalali, G. E. Dodge, J. Domingo, D. Doughty, P. Dragovitsch, Michael Dugger, S. Dytman, M. Eckhause, Y. V. Efremenko, H. Egiyan, K. S. Egiyan, L. Elouadrhiri, A. Empl, P. Eugenio, L. Farhi, R. Fatemi, R. J. Feuerbach, J. Ficenec, K. Fissum, T. A. Forest, A. Freyberger, V. Frolov, H. Funsten, S. J. Gaff, M. Gai, G. Gavalian, V. B. Gavrilov, S. Gilad, G. P. Gilfoyle, K. L. Giovanetti, P. Girard, E. Golovatch, K. A. Griffioen, M. Guidal, M. Guillo, L. Guo, V. Gyurjyan, D. Hanock, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, R. S. Hicks, M. Holtrop, J. Hu, C. E. Hyde-Wright, M. M. Ito, D. Jenkins, K. Joo, J. H. Kelley, M. Khandaker, K. Y. Kim, K. Kim, W. Kim, A. Klein, F. J. Klein, A. V. Klimenko, M. Klusman, M. Kossov, L. H. Kramer, Y. Kuang, J. Kuhn, S. E. Kuhn, J. Lachniet, J. M. Laget, D. Lawrence, G. A. Leksin, A. Longhi, K. Loukachine, R. W. Major, J. J. Manak, C. Marchand, S. K. Matthews, S. McAleer, J. W C McNabb, J. McCarthy, B. A. Mecking, M. D. Mestayer, C. A. Meyer, R. Minehart, M. Mirazita, R. Miskimen, V. Mokeev, V. Muccifora, J. Mueller, L. Y. Murphy, G. S. Mutchler, J. Napolitano, S. O. Nelson, G. Niculescu, B. Niczyporuk, R. A. Niyazov, M. Nozar, J. T. O'Brien, G. V. O'Rielly, M. S. Ohandjanyan, M. Osipenko, K. Park, Y. Patois, G. A. Peterson, S. Philips, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, B. M. Preedom, J. W. Price, L. M. Qin, B. A. Raue, G. Riccardi, G. Ricco, M. Ripani, Barry Ritchie, S. Rock, F. Ronchetti, P. Rossi, D. Rowntree, P. D. Rubin, K. Sabourov, C. W. Salgado, V. Sapunenko, M. Sargsyan, R. A. Schumacher, V. S. Serov, Y. G. Sharabian, J. Shaw, S. M. Shuvalov, S. Simionatto, A. Skabelin, E. S. Smith, L. C. Smith, T. Smith, D. I. Sober, L. Sorrell, M. Spraker, S. Stepanyan, P. Stoler, I. I. Strakovsky, M. Taiuti, S. Taylor, D. Tedeschi, U. Thoma, R. Thompson, L. Todor, T. Y. Tung, C. Tur, M. Ungaro, M. F. Vineyard, A. Vlassov, K. Wang, L. B. Weinstein, H. Weller, R. Welsh, D. P. Weygand, S. Whisnant, M. Witkowski, E. Wolin, A. Yegneswaran, J. Yun, B. Zhang, J. Zhao, Z. Zhou

Physics

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

Measurements of the angular distributions of target and double-spin asymmetries for the Δ ⁺ (1232) in the exclusive channel p ^→(e^→,e′p)π⁰ obtained at the Jefferson Lab in the Q² range from 0.5 to 1.5 GeV²/c ² 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.

Original language	English (US)
Article number	035202
Pages (from-to)	352021-3520214
Number of pages	3168194
Journal	Physical Review C - Nuclear Physics
Volume	68
Issue number	3
State	Published - Sep 2003

ASJC Scopus subject areas

Nuclear and High Energy Physics

Cite this

Biselli, A., Adams, G. S., Amaryan, M. J., 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, B. E., Bosted, P., ... Zhou, Z. (2003). ep→ep π⁰ reaction studied in the Δ(1232) mass region using polarization asymmetries. Physical Review C - Nuclear Physics, 68(3), 352021-3520214. Article 035202.

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, de Sanctis, E, de 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, Klein, A, Klein, FJ, Klimenko, AV, Klusman, M, Kossov, M, Kramer, LH, Kuang, Y, Kuhn, J, Kuhn, SE, Lachniet, J, Laget, JM, Lawrence, D, Leksin, GA, Longhi, A, Loukachine, K, Major, RW, Manak, JJ, Marchand, C, Matthews, SK, McAleer, S, McNabb, JWC, McCarthy, J, Mecking, BA, Mestayer, MD, Meyer, CA, Minehart, R, Mirazita, M, Miskimen, R, Mokeev, V, Muccifora, V, Mueller, J, Murphy, LY, Mutchler, GS, Napolitano, J, Nelson, SO, Niculescu, G, Niczyporuk, B, Niyazov, RA, Nozar, M, O'Brien, JT, O'Rielly, GV, Ohandjanyan, MS, Osipenko, M, Park, K, Patois, Y, Peterson, GA, Philips, S, Pivnyuk, N, Pocanic, D, Pogorelko, O, Polli, E, Preedom, BM, Price, JW, Qin, LM, Raue, BA, Riccardi, G, Ricco, G, Ripani, M, Ritchie, B, Rock, S, Ronchetti, F, Rossi, P, Rowntree, D, Rubin, PD, Sabourov, K, Salgado, CW, Sapunenko, V, Sargsyan, M, Schumacher, RA, Serov, VS, Sharabian, YG, Shaw, J, Shuvalov, SM, Simionatto, S, Skabelin, A, Smith, ES, Smith, LC, Smith, T, Sober, DI, Sorrell, L, Spraker, M, Stepanyan, S, Stoler, P, Strakovsky, II, Taiuti, M, Taylor, S, Tedeschi, D, Thoma, U, Thompson, R, Todor, L, Tung, TY, Tur, C, Ungaro, M, Vineyard, MF, Vlassov, A, Wang, K, Weinstein, LB, Weller, H, Welsh, R, Weygand, DP, Whisnant, S, Witkowski, M, Wolin, E, Yegneswaran, A, Yun, J, Zhang, B, Zhao, J & Zhou, Z 2003, 'ep→ep π⁰ reaction studied in the Δ(1232) mass region using polarization asymmetries', Physical Review C - Nuclear Physics, vol. 68, no. 3, 035202, pp. 352021-3520214.

@article{388353477d1141a9a968ccbd1b6b693a,

title = "ep→ep π0 reaction studied in the Δ(1232) mass region using polarization asymmetries",

abstract = "Measurements of the angular distributions of target and double-spin asymmetries for the Δ + (1232) in the exclusive channel p →(e→,e′p)π0 obtained at the Jefferson Lab in the Q2 range from 0.5 to 1.5 GeV2/c 2 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.",

author = "A. Biselli and Adams, {G. S.} and Amaryan, {M. J.} and E. Anciant and M. Anghinolfi and B. Asavapibhop and G. Asryan and G. Audit and T. Auger and H. Avakian and S. Barrow and M. Battaglieri and K. Beard and M. Bektasoglu and W. Bertozzi and N. Bianchi and S. Boiarinov and Bonner, {B. E.} and P. Bosted and S. Bouchigny and R. Bradford and D. Branford and Brooks, {W. K.} and S. Bueltmann and Burkert, {V. D.} and Calarco, {J. R.} and Carman, {D. S.} and B. Carnahan and C. Cetina and L. Ciciani and Cole, {P. L.} and A. Coleman and J. Connelly and D. Cords and P. Corvisiero and D. Crabb and H. Crannell and J. Cummings and {de Sanctis}, E. and {de Vita}, R. and Degtyarenko, {P. V.} and Demirchyan, {R. A.} and H. Denizli and Dennis, {L. C.} and Dharmawardane, {K. V.} and Dhuga, {K. S.} and C. Djalali and Dodge, {G. E.} and J. Domingo and D. Doughty and P. Dragovitsch and Michael Dugger and S. Dytman and M. Eckhause and Efremenko, {Y. V.} and H. Egiyan and Egiyan, {K. S.} and L. Elouadrhiri and A. Empl and P. Eugenio and L. Farhi and R. Fatemi and Feuerbach, {R. J.} and J. Ficenec and K. Fissum and Forest, {T. A.} and A. Freyberger and V. Frolov and H. Funsten and Gaff, {S. J.} and M. Gai and G. Gavalian and Gavrilov, {V. B.} and S. Gilad and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and P. Girard and E. Golovatch and Griffioen, {K. A.} and M. Guidal and M. Guillo and L. Guo and V. Gyurjyan and D. Hanock and J. Hardie and D. Heddle and Hersman, {F. W.} and K. Hicks and Hicks, {R. S.} and M. Holtrop and J. Hu and Hyde-Wright, {C. E.} and Ito, {M. M.} and D. Jenkins and K. Joo and Kelley, {J. H.} and M. Khandaker and Kim, {K. Y.} and K. Kim and W. Kim and A. Klein and Klein, {F. J.} and Klimenko, {A. V.} and M. Klusman and M. Kossov and Kramer, {L. H.} and Y. Kuang and J. Kuhn and Kuhn, {S. E.} and J. Lachniet and Laget, {J. M.} and D. Lawrence and Leksin, {G. A.} and A. Longhi and K. Loukachine and Major, {R. W.} and Manak, {J. J.} and C. Marchand and Matthews, {S. K.} and S. McAleer and McNabb, {J. W C} and J. McCarthy and Mecking, {B. A.} and Mestayer, {M. D.} and Meyer, {C. A.} and R. Minehart and M. Mirazita and R. Miskimen and V. Mokeev and V. Muccifora and J. Mueller and Murphy, {L. Y.} and Mutchler, {G. S.} and J. Napolitano and Nelson, {S. O.} and G. Niculescu and B. Niczyporuk and Niyazov, {R. A.} and M. Nozar and O'Brien, {J. T.} and O'Rielly, {G. V.} and Ohandjanyan, {M. S.} and M. Osipenko and K. Park and Y. Patois and Peterson, {G. A.} and S. Philips and N. Pivnyuk and D. Pocanic and O. Pogorelko and E. Polli and Preedom, {B. M.} and Price, {J. W.} and Qin, {L. M.} and Raue, {B. A.} and G. Riccardi and G. Ricco and M. Ripani and Barry Ritchie and S. Rock and F. Ronchetti and P. Rossi and D. Rowntree and Rubin, {P. D.} and K. Sabourov and Salgado, {C. W.} and V. Sapunenko and M. Sargsyan and Schumacher, {R. A.} and Serov, {V. S.} and Sharabian, {Y. G.} and J. Shaw and Shuvalov, {S. M.} and S. Simionatto and A. Skabelin and Smith, {E. S.} and Smith, {L. C.} and T. Smith and Sober, {D. I.} and L. Sorrell and M. Spraker and S. Stepanyan and P. Stoler and Strakovsky, {I. I.} and M. Taiuti and S. Taylor and D. Tedeschi and U. Thoma and R. Thompson and L. Todor and Tung, {T. Y.} and C. Tur and M. Ungaro and Vineyard, {M. F.} and A. Vlassov and K. Wang and Weinstein, {L. B.} and H. Weller and R. Welsh and Weygand, {D. P.} and S. Whisnant and M. Witkowski and E. Wolin and A. Yegneswaran and J. Yun and B. Zhang and J. Zhao and Z. Zhou",

year = "2003",

month = sep,

language = "English (US)",

volume = "68",

pages = "352021--3520214",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "3",

}

TY - JOUR

T1 - ep→ep π0 reaction studied in the Δ(1232) mass region using polarization asymmetries

AU - Biselli, A.

AU - Adams, G. S.

AU - Amaryan, M. J.

AU - Anciant, E.

AU - Anghinolfi, M.

AU - Asavapibhop, B.

AU - Asryan, G.

AU - Audit, G.

AU - Auger, T.

AU - Avakian, H.

AU - Barrow, S.

AU - Battaglieri, M.

AU - Beard, K.

AU - Bektasoglu, M.

AU - Bertozzi, W.

AU - Bianchi, N.

AU - Boiarinov, S.

AU - Bonner, B. E.

AU - Bosted, P.

AU - Bouchigny, S.

AU - Bradford, R.

AU - Branford, D.

AU - Brooks, W. K.

AU - Bueltmann, S.

AU - Burkert, V. D.

AU - Calarco, J. R.

AU - Carman, D. S.

AU - Carnahan, B.

AU - Cetina, C.

AU - Ciciani, L.

AU - Cole, P. L.

AU - Coleman, A.

AU - Connelly, J.

AU - Cords, D.

AU - Corvisiero, P.

AU - Crabb, D.

AU - Crannell, H.

AU - Cummings, J.

AU - de Sanctis, E.

AU - de Vita, R.

AU - Degtyarenko, P. V.

AU - Demirchyan, R. A.

AU - Denizli, H.

AU - Dennis, L. C.

AU - Dharmawardane, K. V.

AU - Dhuga, K. S.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Domingo, J.

AU - Doughty, D.

AU - Dragovitsch, P.

AU - Dugger, Michael

AU - Dytman, S.

AU - Eckhause, M.

AU - Efremenko, Y. V.

AU - Egiyan, H.

AU - Egiyan, K. S.

AU - Elouadrhiri, L.

AU - Empl, A.

AU - Eugenio, P.

AU - Farhi, L.

AU - Fatemi, R.

AU - Feuerbach, R. J.

AU - Ficenec, J.

AU - Fissum, K.

AU - Forest, T. A.

AU - Freyberger, A.

AU - Frolov, V.

AU - Funsten, H.

AU - Gaff, S. J.

AU - Gai, M.

AU - Gavalian, G.

AU - Gavrilov, V. B.

AU - Gilad, S.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girard, P.

AU - Golovatch, E.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Guillo, M.

AU - Guo, L.

AU - Gyurjyan, V.

AU - Hanock, D.

AU - Hardie, J.

AU - Heddle, D.

AU - Hersman, F. W.

AU - Hicks, K.

AU - Hicks, R. S.

AU - Holtrop, M.

AU - Hu, J.

AU - Hyde-Wright, C. E.

AU - Ito, M. M.

AU - Jenkins, D.

AU - Joo, K.

AU - Kelley, J. H.

AU - Khandaker, M.

AU - Kim, K. Y.

AU - Kim, K.

AU - Kim, W.

AU - Klein, A.

AU - Klein, F. J.

AU - Klimenko, A. V.

AU - Klusman, M.

AU - Kossov, M.

AU - Kramer, L. H.

AU - Kuang, Y.

AU - Kuhn, J.

AU - Kuhn, S. E.

AU - Lachniet, J.

AU - Laget, J. M.

AU - Lawrence, D.

AU - Leksin, G. A.

AU - Longhi, A.

AU - Loukachine, K.

AU - Major, R. W.

AU - Manak, J. J.

AU - Marchand, C.

AU - Matthews, S. K.

AU - McAleer, S.

AU - McNabb, J. W C

AU - McCarthy, J.

AU - Mecking, B. A.

AU - Mestayer, M. D.

AU - Meyer, C. A.

AU - Minehart, R.

AU - Mirazita, M.

AU - Miskimen, R.

AU - Mokeev, V.

AU - Muccifora, V.

AU - Mueller, J.

AU - Murphy, L. Y.

AU - Mutchler, G. S.

AU - Napolitano, J.

AU - Nelson, S. O.

AU - Niculescu, G.

AU - Niczyporuk, B.

AU - Niyazov, R. A.

AU - Nozar, M.

AU - O'Brien, J. T.

AU - O'Rielly, G. V.

AU - Ohandjanyan, M. S.

AU - Osipenko, M.

AU - Park, K.

AU - Patois, Y.

AU - Peterson, G. A.

AU - Philips, S.

AU - Pivnyuk, N.

AU - Pocanic, D.

AU - Pogorelko, O.

AU - Polli, E.

AU - Preedom, B. M.

AU - Price, J. W.

AU - Qin, L. M.

AU - Raue, B. A.

AU - Riccardi, G.

AU - Ricco, G.

AU - Ripani, M.

AU - Ritchie, Barry

AU - Rock, S.

AU - Ronchetti, F.

AU - Rossi, P.

AU - Rowntree, D.

AU - Rubin, P. D.

AU - Sabourov, K.

AU - Salgado, C. W.

AU - Sapunenko, V.

AU - Sargsyan, M.

AU - Schumacher, R. A.

AU - Serov, V. S.

AU - Sharabian, Y. G.

AU - Shaw, J.

AU - Shuvalov, S. M.

AU - Simionatto, S.

AU - Skabelin, A.

AU - Smith, E. S.

AU - Smith, L. C.

AU - Smith, T.

AU - Sober, D. I.

AU - Sorrell, L.

AU - Spraker, M.

AU - Stepanyan, S.

AU - Stoler, P.

AU - Strakovsky, I. I.

AU - Taiuti, M.

AU - Taylor, S.

AU - Tedeschi, D.

AU - Thoma, U.

AU - Thompson, R.

AU - Todor, L.

AU - Tung, T. Y.

AU - Tur, C.

AU - Ungaro, M.

AU - Vineyard, M. F.

AU - Vlassov, A.

AU - Wang, K.

AU - Weinstein, L. B.

AU - Weller, H.

AU - Welsh, R.

AU - Weygand, D. P.

AU - Whisnant, S.

AU - Witkowski, M.

AU - Wolin, E.

AU - Yegneswaran, A.

AU - Yun, J.

AU - Zhang, B.

AU - Zhao, J.

AU - Zhou, Z.

PY - 2003/9

Y1 - 2003/9

N2 - Measurements of the angular distributions of target and double-spin asymmetries for the Δ + (1232) in the exclusive channel p →(e→,e′p)π0 obtained at the Jefferson Lab in the Q2 range from 0.5 to 1.5 GeV2/c 2 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.

AB - Measurements of the angular distributions of target and double-spin asymmetries for the Δ + (1232) in the exclusive channel p →(e→,e′p)π0 obtained at the Jefferson Lab in the Q2 range from 0.5 to 1.5 GeV2/c 2 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.

UR - http://www.scopus.com/inward/record.url?scp=0344496731&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0344496731&partnerID=8YFLogxK

M3 - Article

AN - SCOPUS:0344496731

SN - 0556-2813

VL - 68

SP - 352021

EP - 3520214

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 3

M1 - 035202

ER -

ep→ep π⁰ reaction studied in the Δ(1232) mass region using polarization asymmetries

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