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

K. Joo, L. C. Smith, I. G. Aznauryan, V. D. Burkert, R. Minehart, G. Adams, P. Ambrozewicz, E. Anciant, M. Anghinolfi, B. Asavapibhop, G. Asryan, G. Audit, T. Auger, H. Avakian, H. Bagdasaryan, J. P. Ball, S. Barrow, V. Batourine, M. Battaglieri, K. Beard & 192 others M. Bektasoglu, N. Benmouna, N. Bianchi, A. S. Biselli, S. Boiarinov, B. E. Bonner, S. Bouchigny, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, S. Bültmann, C. Butuceanu, J. R. Calarco, D. S. Carman, B. Carnahan, C. Cetina, S. Chen, L. Ciciani, P. L. Cole, D. Cords, P. Corvisiero, D. Crabb, H. Crannell, J. P. Cummings, E. de Sanctis, R. DeVita, P. V. Degtyarenko, L. Dennis, A. Deur, K. V. Dharmawardane, K. S. Dhuga, C. Djalali, G. E. Dodge, D. Doughty, P. Dragovitsch, Michael Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. Elouadrhiri, A. Empl, P. Eugenio, R. Fersch, R. J. Feuerbach, T. A. Forest, H. Funsten, S. J. Gaff, M. Garçon, G. Gavalian, S. Gilad, G. P. Gilfoyle, K. L. Giovanetti, R. W. Gothe, K. A. Griffioen, M. Guidal, M. Guillo, N. Guler, L. Guo, V. Gyurjyan, C. Hadjidakis, R. S. Hakobyan, J. Hardie, D. Heddle, F. W. Hersman, K. Hicks, I. Hleiqawi, M. Holtrop, J. Hu, C. E. Hyde-Wright, Y. Ilieva, D. Ireland, M. M. Ito, D. Jenkins, H. G. Juengst, J. D. Kellie, J. H. Kelley, M. Khandaker, K. Y. Kim, K. Kim, W. Kim, A. Klein, F. J. Klein, A. V. Klimenko, M. Klusman, M. Kossov, V. Koubarovski, L. H. Kramer, S. E. Kuhn, J. Kuhn, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, T. Lee, K. Livingston, K. Lukashin, J. J. Manak, C. Marchand, S. McAleer, J. W C McNabb, B. A. Mecking, M. D. Mestayer, C. A. Meyer, K. Mikhailov, M. Mirazita, R. Miskimen, V. Mokeev, L. Morand, S. A. Morrow, V. Muccifora, J. Mueller, G. S. Mutchler, J. Napolitano, R. Nasseripour, S. O. Nelson, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, R. A. Niyazov, M. Nozar, G. V. O'Rielly, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, G. Peterson, S. A. Philips, N. Pivnyuk, D. Pocanic, O. Pogorelko, E. Polli, S. Pozdniakov, B. M. Preedom, J. W. Price, Y. Prok, D. Protopopescu, L. M. Qin, B. A. Raue, G. Riccardi, G. Ricco, M. Ripani, Barry Ritchie, F. Ronchetti, G. Rosner, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, K. Sabourov, C. Salgado, J. P. Santoro, V. Sapunenko, R. A. Schumacher, V. S. Serov, Y. G. Sharabian, J. Shaw, S. Simionatto, A. V. Skabelin, E. S. Smith, D. I. Sober, M. Spraker, A. Stavinsky, S. Stepanyan, S. S. Stepanyan, B. E. Stokes, P. Stoler, I. I. Strakovsky, S. Strauch, M. Taiuti, S. Taylor, D. J. Tedeschi, U. Thoma, R. Thompson, A. Tkabladze, L. Todor, C. Tur, M. Ungaro, M. F. Vineyard, A. V. Vlassov, K. Wang, L. B. Weinstein, H. Weller, D. P. Weygand, M. Williams, E. Wolin, M. H. Wood, A. Yegneswaran, J. Yun, L. Zana

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Abstract

The polarized longitudinal-transverse structure function σ LT′, has been measured using the p(e, e′ π+)n reaction in the Δ(1232) resonance region at Q2=0.40 and 0.65 GeV2. No previous σ LT′ data exist for this reaction channel. The kinematically complete experiment was performed at the Jefferson Lab with the CEBAF large acceptance spectrometer using longitudinally polarized electrons at an energy of 1.515 GeV. A partialwave analysis of the data shows generally better agreement with recent phenomenological models of pion electroproduction compared to the previously measured π0p channel. A fit to both π0 p and π+n channels using a unitary isobar model suggests the unitarized Born terms provide a consistent description of the nonresonant background. The t-channel pion pole term is important in the π0p channel through a rescattering correction, which could be model dependent.

Original languageEnglish (US)
Article number042201
JournalPhysical Review C - Nuclear Physics
Volume70
Issue number4
DOIs
StatePublished - Oct 2004

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pions
isobars
acceptability
poles
spectrometers
electrons
energy

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Nuclear and High Energy Physics

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Measurement of the polarized structure function σ LT′ for p(e,e′π+)n in the Δ(1232) resonance region. / Joo, K.; Smith, L. C.; Aznauryan, I. G.; Burkert, V. D.; Minehart, R.; Adams, G.; Ambrozewicz, P.; Anciant, E.; Anghinolfi, M.; Asavapibhop, B.; Asryan, G.; Audit, G.; Auger, T.; Avakian, H.; Bagdasaryan, H.; Ball, J. P.; Barrow, S.; Batourine, V.; Battaglieri, M.; Beard, K.; Bektasoglu, M.; Benmouna, N.; Bianchi, N.; Biselli, A. S.; Boiarinov, S.; Bonner, B. E.; Bouchigny, S.; Bradford, R.; Branford, D.; Briscoe, W. J.; Brooks, W. K.; Bültmann, S.; Butuceanu, C.; Calarco, J. R.; Carman, D. S.; Carnahan, B.; Cetina, C.; Chen, S.; Ciciani, L.; Cole, P. L.; Cords, D.; Corvisiero, P.; Crabb, D.; Crannell, H.; Cummings, J. P.; de Sanctis, E.; DeVita, R.; Degtyarenko, P. V.; Dennis, L.; Deur, A.; Dharmawardane, K. V.; Dhuga, K. S.; Djalali, C.; Dodge, G. E.; Doughty, D.; Dragovitsch, P.; Dugger, Michael; Dytman, S.; Dzyubak, O. P.; Egiyan, H.; Egiyan, K. S.; Elouadrhiri, L.; Empl, A.; Eugenio, P.; Fersch, R.; Feuerbach, R. J.; Forest, T. A.; Funsten, H.; Gaff, S. J.; Garçon, M.; Gavalian, G.; Gilad, S.; Gilfoyle, G. P.; Giovanetti, K. L.; Gothe, R. W.; Griffioen, K. A.; Guidal, M.; Guillo, M.; Guler, N.; Guo, L.; Gyurjyan, V.; Hadjidakis, C.; Hakobyan, R. S.; Hardie, J.; Heddle, D.; Hersman, F. W.; Hicks, K.; Hleiqawi, I.; Holtrop, M.; Hu, J.; Hyde-Wright, C. E.; Ilieva, Y.; Ireland, D.; Ito, M. M.; Jenkins, D.; Juengst, H. G.; Kellie, J. D.; Kelley, J. H.; Khandaker, M.; Kim, K. Y.; Kim, K.; Kim, W.; Klein, A.; Klein, F. J.; Klimenko, A. V.; Klusman, M.; Kossov, M.; Koubarovski, V.; Kramer, L. H.; Kuhn, S. E.; Kuhn, J.; Lachniet, J.; Laget, J. M.; Langheinrich, J.; Lawrence, D.; Lee, T.; Livingston, K.; Lukashin, K.; Manak, J. J.; Marchand, C.; McAleer, S.; McNabb, J. W C; Mecking, B. A.; Mestayer, M. D.; Meyer, C. A.; Mikhailov, K.; Mirazita, M.; Miskimen, R.; Mokeev, V.; Morand, L.; Morrow, S. A.; Muccifora, V.; Mueller, J.; Mutchler, G. S.; Napolitano, J.; Nasseripour, R.; Nelson, S. O.; Niccolai, S.; Niculescu, G.; Niculescu, I.; Niczyporuk, B. B.; Niyazov, R. A.; Nozar, M.; O'Rielly, G. V.; Osipenko, M.; Ostrovidov, A. I.; Park, K.; Pasyuk, E.; Peterson, G.; Philips, S. A.; Pivnyuk, N.; Pocanic, D.; Pogorelko, O.; Polli, E.; Pozdniakov, S.; Preedom, B. M.; Price, J. W.; Prok, Y.; Protopopescu, D.; Qin, L. M.; Raue, B. A.; Riccardi, G.; Ricco, G.; Ripani, M.; Ritchie, Barry; Ronchetti, F.; Rosner, G.; Rossi, P.; Rowntree, D.; Rubin, P. D.; Sabatié, F.; Sabourov, K.; Salgado, C.; Santoro, J. P.; Sapunenko, V.; Schumacher, R. A.; Serov, V. S.; Sharabian, Y. G.; Shaw, J.; Simionatto, S.; Skabelin, A. V.; Smith, E. S.; Sober, D. I.; Spraker, M.; Stavinsky, A.; Stepanyan, S.; Stepanyan, S. S.; Stokes, B. E.; Stoler, P.; Strakovsky, I. I.; Strauch, S.; Taiuti, M.; Taylor, S.; Tedeschi, D. J.; Thoma, U.; Thompson, R.; Tkabladze, A.; Todor, L.; Tur, C.; Ungaro, M.; Vineyard, M. F.; Vlassov, A. V.; Wang, K.; Weinstein, L. B.; Weller, H.; Weygand, D. P.; Williams, M.; Wolin, E.; Wood, M. H.; Yegneswaran, A.; Yun, J.; Zana, L.

In: Physical Review C - Nuclear Physics, Vol. 70, No. 4, 042201, 10.2004.

Research output: Contribution to journalArticle

Joo, K, Smith, LC, Aznauryan, IG, Burkert, VD, Minehart, R, Adams, G, Ambrozewicz, P, Anciant, E, Anghinolfi, M, Asavapibhop, B, Asryan, G, Audit, G, Auger, T, Avakian, H, Bagdasaryan, H, Ball, JP, Barrow, S, Batourine, V, Battaglieri, M, Beard, K, Bektasoglu, M, Benmouna, N, Bianchi, N, Biselli, AS, Boiarinov, S, Bonner, BE, Bouchigny, S, Bradford, R, Branford, D, Briscoe, WJ, Brooks, WK, Bültmann, S, Butuceanu, C, Calarco, JR, Carman, DS, Carnahan, B, Cetina, C, Chen, S, Ciciani, L, Cole, PL, Cords, D, Corvisiero, P, Crabb, D, Crannell, H, Cummings, JP, de Sanctis, E, DeVita, R, Degtyarenko, PV, Dennis, L, Deur, A, Dharmawardane, KV, Dhuga, KS, Djalali, C, Dodge, GE, Doughty, D, Dragovitsch, P, Dugger, M, Dytman, S, Dzyubak, OP, Egiyan, H, Egiyan, KS, Elouadrhiri, L, Empl, A, Eugenio, P, Fersch, R, Feuerbach, RJ, Forest, TA, Funsten, H, Gaff, SJ, Garçon, M, Gavalian, G, Gilad, S, Gilfoyle, GP, Giovanetti, KL, Gothe, RW, Griffioen, KA, Guidal, M, Guillo, M, Guler, N, Guo, L, Gyurjyan, V, Hadjidakis, C, Hakobyan, RS, Hardie, J, Heddle, D, Hersman, FW, Hicks, K, Hleiqawi, I, Holtrop, M, Hu, J, Hyde-Wright, CE, Ilieva, Y, Ireland, D, Ito, MM, Jenkins, D, Juengst, HG, Kellie, JD, Kelley, JH, Khandaker, M, Kim, KY, Kim, K, Kim, W, Klein, A, Klein, FJ, Klimenko, AV, Klusman, M, Kossov, M, Koubarovski, V, Kramer, LH, Kuhn, SE, Kuhn, J, Lachniet, J, Laget, JM, Langheinrich, J, Lawrence, D, Lee, T, Livingston, K, Lukashin, K, Manak, JJ, Marchand, C, McAleer, S, McNabb, JWC, Mecking, BA, Mestayer, MD, Meyer, CA, Mikhailov, K, Mirazita, M, Miskimen, R, Mokeev, V, Morand, L, Morrow, SA, Muccifora, V, Mueller, J, Mutchler, GS, Napolitano, J, Nasseripour, R, Nelson, SO, Niccolai, S, Niculescu, G, Niculescu, I, Niczyporuk, BB, Niyazov, RA, Nozar, M, O'Rielly, GV, Osipenko, M, Ostrovidov, AI, Park, K, Pasyuk, E, Peterson, G, Philips, SA, Pivnyuk, N, Pocanic, D, Pogorelko, O, Polli, E, Pozdniakov, S, Preedom, BM, Price, JW, Prok, Y, Protopopescu, D, Qin, LM, Raue, BA, Riccardi, G, Ricco, G, Ripani, M, Ritchie, B, Ronchetti, F, Rosner, G, Rossi, P, Rowntree, D, Rubin, PD, Sabatié, F, Sabourov, K, Salgado, C, Santoro, JP, Sapunenko, V, Schumacher, RA, Serov, VS, Sharabian, YG, Shaw, J, Simionatto, S, Skabelin, AV, Smith, ES, Sober, DI, Spraker, M, Stavinsky, A, Stepanyan, S, Stepanyan, SS, Stokes, BE, Stoler, P, Strakovsky, II, Strauch, S, Taiuti, M, Taylor, S, Tedeschi, DJ, Thoma, U, Thompson, R, Tkabladze, A, Todor, L, Tur, C, Ungaro, M, Vineyard, MF, Vlassov, AV, Wang, K, Weinstein, LB, Weller, H, Weygand, DP, Williams, M, Wolin, E, Wood, MH, Yegneswaran, A, Yun, J & Zana, L 2004, 'Measurement of the polarized structure function σ LT′ for p(e,e′π+)n in the Δ(1232) resonance region', Physical Review C - Nuclear Physics, vol. 70, no. 4, 042201. https://doi.org/10.1103/PhysRevC.70.042201
Joo, K. ; Smith, L. C. ; Aznauryan, I. G. ; Burkert, V. D. ; Minehart, R. ; Adams, G. ; Ambrozewicz, P. ; Anciant, E. ; Anghinolfi, M. ; Asavapibhop, B. ; Asryan, G. ; Audit, G. ; Auger, T. ; Avakian, H. ; Bagdasaryan, H. ; Ball, J. P. ; Barrow, S. ; Batourine, V. ; Battaglieri, M. ; Beard, K. ; Bektasoglu, M. ; Benmouna, N. ; Bianchi, N. ; Biselli, A. S. ; Boiarinov, S. ; Bonner, B. E. ; Bouchigny, S. ; Bradford, R. ; Branford, D. ; Briscoe, W. J. ; Brooks, W. K. ; Bültmann, S. ; Butuceanu, C. ; Calarco, J. R. ; Carman, D. S. ; Carnahan, B. ; Cetina, C. ; Chen, S. ; Ciciani, L. ; Cole, P. L. ; Cords, D. ; Corvisiero, P. ; Crabb, D. ; Crannell, H. ; Cummings, J. P. ; de Sanctis, E. ; DeVita, R. ; Degtyarenko, P. V. ; Dennis, L. ; Deur, A. ; Dharmawardane, K. V. ; Dhuga, K. S. ; Djalali, C. ; Dodge, G. E. ; Doughty, D. ; Dragovitsch, P. ; Dugger, Michael ; Dytman, S. ; Dzyubak, O. P. ; Egiyan, H. ; Egiyan, K. S. ; Elouadrhiri, L. ; Empl, A. ; Eugenio, P. ; Fersch, R. ; Feuerbach, R. J. ; Forest, T. A. ; Funsten, H. ; Gaff, S. J. ; Garçon, M. ; Gavalian, G. ; Gilad, S. ; Gilfoyle, G. P. ; Giovanetti, K. L. ; Gothe, R. W. ; Griffioen, K. A. ; Guidal, M. ; Guillo, M. ; Guler, N. ; Guo, L. ; Gyurjyan, V. ; Hadjidakis, C. ; Hakobyan, R. S. ; Hardie, J. ; Heddle, D. ; Hersman, F. W. ; Hicks, K. ; Hleiqawi, I. ; Holtrop, M. ; Hu, J. ; Hyde-Wright, C. E. ; Ilieva, Y. ; Ireland, D. ; Ito, M. M. ; Jenkins, D. ; Juengst, H. G. ; Kellie, J. D. ; Kelley, J. H. ; Khandaker, M. ; Kim, K. Y. ; Kim, K. ; Kim, W. ; Klein, A. ; Klein, F. J. ; Klimenko, A. V. ; Klusman, M. ; Kossov, M. ; Koubarovski, V. ; Kramer, L. H. ; Kuhn, S. E. ; Kuhn, J. ; Lachniet, J. ; Laget, J. M. ; Langheinrich, J. ; Lawrence, D. ; Lee, T. ; Livingston, K. ; Lukashin, K. ; Manak, J. J. ; Marchand, C. ; McAleer, S. ; McNabb, J. W C ; Mecking, B. A. ; Mestayer, M. D. ; Meyer, C. A. ; Mikhailov, K. ; Mirazita, M. ; Miskimen, R. ; Mokeev, V. ; Morand, L. ; Morrow, S. A. ; Muccifora, V. ; Mueller, J. ; Mutchler, G. S. ; Napolitano, J. ; Nasseripour, R. ; Nelson, S. O. ; Niccolai, S. ; Niculescu, G. ; Niculescu, I. ; Niczyporuk, B. B. ; Niyazov, R. A. ; Nozar, M. ; O'Rielly, G. V. ; Osipenko, M. ; Ostrovidov, A. I. ; Park, K. ; Pasyuk, E. ; Peterson, G. ; Philips, S. A. ; Pivnyuk, N. ; Pocanic, D. ; Pogorelko, O. ; Polli, E. ; Pozdniakov, S. ; Preedom, B. M. ; Price, J. W. ; Prok, Y. ; Protopopescu, D. ; Qin, L. M. ; Raue, B. A. ; Riccardi, G. ; Ricco, G. ; Ripani, M. ; Ritchie, Barry ; Ronchetti, F. ; Rosner, G. ; Rossi, P. ; Rowntree, D. ; Rubin, P. D. ; Sabatié, F. ; Sabourov, K. ; Salgado, C. ; Santoro, J. P. ; Sapunenko, V. ; Schumacher, R. A. ; Serov, V. S. ; Sharabian, Y. G. ; Shaw, J. ; Simionatto, S. ; Skabelin, A. V. ; Smith, E. S. ; Sober, D. I. ; Spraker, M. ; Stavinsky, A. ; Stepanyan, S. ; Stepanyan, S. S. ; Stokes, B. E. ; Stoler, P. ; Strakovsky, I. I. ; Strauch, S. ; Taiuti, M. ; Taylor, S. ; Tedeschi, D. J. ; Thoma, U. ; Thompson, R. ; Tkabladze, A. ; Todor, L. ; Tur, C. ; Ungaro, M. ; Vineyard, M. F. ; Vlassov, A. V. ; Wang, K. ; Weinstein, L. B. ; Weller, H. ; Weygand, D. P. ; Williams, M. ; Wolin, E. ; Wood, M. H. ; Yegneswaran, A. ; Yun, J. ; Zana, L. / Measurement of the polarized structure function σ LT′ for p(e,e′π+)n in the Δ(1232) resonance region. In: Physical Review C - Nuclear Physics. 2004 ; Vol. 70, No. 4.
@article{3aeef68886224107bc586be39493e7b5,
title = "Measurement of the polarized structure function σ LT′ for p(e→,e′π+)n in the Δ(1232) resonance region",
abstract = "The polarized longitudinal-transverse structure function σ LT′, has been measured using the p(e→, e′ π+)n reaction in the Δ(1232) resonance region at Q2=0.40 and 0.65 GeV2. No previous σ LT′ data exist for this reaction channel. The kinematically complete experiment was performed at the Jefferson Lab with the CEBAF large acceptance spectrometer using longitudinally polarized electrons at an energy of 1.515 GeV. A partialwave analysis of the data shows generally better agreement with recent phenomenological models of pion electroproduction compared to the previously measured π0p channel. A fit to both π0 p and π+n channels using a unitary isobar model suggests the unitarized Born terms provide a consistent description of the nonresonant background. The t-channel pion pole term is important in the π0p channel through a rescattering correction, which could be model dependent.",
author = "K. Joo and Smith, {L. C.} and Aznauryan, {I. G.} and Burkert, {V. D.} and R. Minehart and G. Adams and P. Ambrozewicz and E. Anciant and M. Anghinolfi and B. Asavapibhop and G. Asryan and G. Audit and T. Auger and H. Avakian and H. Bagdasaryan and Ball, {J. P.} and S. Barrow and V. Batourine and M. Battaglieri and K. Beard and M. Bektasoglu and N. Benmouna and N. Bianchi and Biselli, {A. S.} and S. Boiarinov and Bonner, {B. E.} and S. Bouchigny and R. Bradford and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and S. B{\"u}ltmann and C. Butuceanu and Calarco, {J. R.} and Carman, {D. S.} and B. Carnahan and C. Cetina and S. Chen and L. Ciciani and Cole, {P. L.} and D. Cords and P. Corvisiero and D. Crabb and H. Crannell and Cummings, {J. P.} and {de Sanctis}, E. and R. DeVita and Degtyarenko, {P. V.} and L. Dennis and A. Deur and Dharmawardane, {K. V.} and Dhuga, {K. S.} and C. Djalali and Dodge, {G. E.} and D. Doughty and P. Dragovitsch and Michael Dugger and S. Dytman and Dzyubak, {O. P.} and H. Egiyan and Egiyan, {K. S.} and L. Elouadrhiri and A. Empl and P. Eugenio and R. Fersch and Feuerbach, {R. J.} and Forest, {T. A.} and H. Funsten and Gaff, {S. J.} and M. Gar{\cc}on and G. Gavalian and S. Gilad and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and Gothe, {R. W.} and Griffioen, {K. A.} and M. Guidal and M. Guillo and N. Guler and L. Guo and V. Gyurjyan and C. Hadjidakis and Hakobyan, {R. S.} and J. Hardie and D. Heddle and Hersman, {F. W.} and K. Hicks and I. Hleiqawi and M. Holtrop and J. Hu and Hyde-Wright, {C. E.} and Y. Ilieva and D. Ireland and Ito, {M. M.} and D. Jenkins and Juengst, {H. G.} and Kellie, {J. D.} 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 V. Koubarovski and Kramer, {L. H.} and Kuhn, {S. E.} and J. Kuhn and J. Lachniet and Laget, {J. M.} and J. Langheinrich and D. Lawrence and T. Lee and K. Livingston and K. Lukashin and Manak, {J. J.} and C. Marchand and S. McAleer and McNabb, {J. W C} and Mecking, {B. A.} and Mestayer, {M. D.} and Meyer, {C. A.} and K. Mikhailov and M. Mirazita and R. Miskimen and V. Mokeev and L. Morand and Morrow, {S. A.} and V. Muccifora and J. Mueller and Mutchler, {G. S.} and J. Napolitano and R. Nasseripour and Nelson, {S. O.} and S. Niccolai and G. Niculescu and I. Niculescu and Niczyporuk, {B. B.} and Niyazov, {R. A.} and M. Nozar and O'Rielly, {G. V.} and M. Osipenko and Ostrovidov, {A. I.} and K. Park and E. Pasyuk and G. Peterson and Philips, {S. A.} and N. Pivnyuk and D. Pocanic and O. Pogorelko and E. Polli and S. Pozdniakov and Preedom, {B. M.} and Price, {J. W.} and Y. Prok and D. Protopopescu and Qin, {L. M.} and Raue, {B. A.} and G. Riccardi and G. Ricco and M. Ripani and Barry Ritchie and F. Ronchetti and G. Rosner and P. Rossi and D. Rowntree and Rubin, {P. D.} and F. Sabati{\'e} and K. Sabourov and C. Salgado and Santoro, {J. P.} and V. Sapunenko and Schumacher, {R. A.} and Serov, {V. S.} and Sharabian, {Y. G.} and J. Shaw and S. Simionatto and Skabelin, {A. V.} and Smith, {E. S.} and Sober, {D. I.} and M. Spraker and A. Stavinsky and S. Stepanyan and Stepanyan, {S. S.} and Stokes, {B. E.} and P. Stoler and Strakovsky, {I. I.} and S. Strauch and M. Taiuti and S. Taylor and Tedeschi, {D. J.} and U. Thoma and R. Thompson and A. Tkabladze and L. Todor and C. Tur and M. Ungaro and Vineyard, {M. F.} and Vlassov, {A. V.} and K. Wang and Weinstein, {L. B.} and H. Weller and Weygand, {D. P.} and M. Williams and E. Wolin and Wood, {M. H.} and A. Yegneswaran and J. Yun and L. Zana",
year = "2004",
month = "10",
doi = "10.1103/PhysRevC.70.042201",
language = "English (US)",
volume = "70",
journal = "Physical Review C - Nuclear Physics",
issn = "0556-2813",
publisher = "American Physical Society",
number = "4",

}

TY - JOUR

T1 - Measurement of the polarized structure function σ LT′ for p(e→,e′π+)n in the Δ(1232) resonance region

AU - Joo, K.

AU - Smith, L. C.

AU - Aznauryan, I. G.

AU - Burkert, V. D.

AU - Minehart, R.

AU - Adams, G.

AU - Ambrozewicz, P.

AU - Anciant, E.

AU - Anghinolfi, M.

AU - Asavapibhop, B.

AU - Asryan, G.

AU - Audit, G.

AU - Auger, T.

AU - Avakian, H.

AU - Bagdasaryan, H.

AU - Ball, J. P.

AU - Barrow, S.

AU - Batourine, V.

AU - Battaglieri, M.

AU - Beard, K.

AU - Bektasoglu, M.

AU - Benmouna, N.

AU - Bianchi, N.

AU - Biselli, A. S.

AU - Boiarinov, S.

AU - Bonner, B. E.

AU - Bouchigny, S.

AU - Bradford, R.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Bültmann, S.

AU - Butuceanu, C.

AU - Calarco, J. R.

AU - Carman, D. S.

AU - Carnahan, B.

AU - Cetina, C.

AU - Chen, S.

AU - Ciciani, L.

AU - Cole, P. L.

AU - Cords, D.

AU - Corvisiero, P.

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PY - 2004/10

Y1 - 2004/10

N2 - The polarized longitudinal-transverse structure function σ LT′, has been measured using the p(e→, e′ π+)n reaction in the Δ(1232) resonance region at Q2=0.40 and 0.65 GeV2. No previous σ LT′ data exist for this reaction channel. The kinematically complete experiment was performed at the Jefferson Lab with the CEBAF large acceptance spectrometer using longitudinally polarized electrons at an energy of 1.515 GeV. A partialwave analysis of the data shows generally better agreement with recent phenomenological models of pion electroproduction compared to the previously measured π0p channel. A fit to both π0 p and π+n channels using a unitary isobar model suggests the unitarized Born terms provide a consistent description of the nonresonant background. The t-channel pion pole term is important in the π0p channel through a rescattering correction, which could be model dependent.

AB - The polarized longitudinal-transverse structure function σ LT′, has been measured using the p(e→, e′ π+)n reaction in the Δ(1232) resonance region at Q2=0.40 and 0.65 GeV2. No previous σ LT′ data exist for this reaction channel. The kinematically complete experiment was performed at the Jefferson Lab with the CEBAF large acceptance spectrometer using longitudinally polarized electrons at an energy of 1.515 GeV. A partialwave analysis of the data shows generally better agreement with recent phenomenological models of pion electroproduction compared to the previously measured π0p channel. A fit to both π0 p and π+n channels using a unitary isobar model suggests the unitarized Born terms provide a consistent description of the nonresonant background. The t-channel pion pole term is important in the π0p channel through a rescattering correction, which could be model dependent.

UR - http://www.scopus.com/inward/record.url?scp=80051469692&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80051469692&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.70.042201

DO - 10.1103/PhysRevC.70.042201

M3 - Article

VL - 70

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

SN - 0556-2813

IS - 4

M1 - 042201

ER -