Electroproduction of pπ+π- off protons at 0.2<Q2<0.6 GeV2 and 1.3<W<1.57 GeV with the CLAS detector

G. V. Fedotov; V. I. Mokeev; V. D. Burkert; L. Elouadrhiri; E. N. Golovatch; B. S. Ishkhanov; E. L. Isupov; N. V. Shvedunov; G. Adams; M. J. Amaryan; P. Ambrozewicz; M. Anghinolfi; B. Asavapibhop; G. Asryan; H. Avakian; H. Baghdasaryan; N. Baillie; J. P. Ball; N. A. Baltzell; V. Batourine; M. Battaglieri; I. Bedlinskiy; M. Bektasoglu; M. Bellis; N. Benmouna; A. S. Biselli; B. E. Bonner; S. Bouchigny; S. Boiarinov; R. Bradford; D. Branford; W. K. Brooks; S. Bültmann; C. Butuceanu; J. R. Calarco; S. L. Careccia; D. S. Carman; B. Carnahan; S. Chen; P. L. Cole; P. Coltharp; P. Corvisiero; D. Crabb; H. Crannell; V. Crede; J. P. Cummings; N. B. Dashyan; E. De Sanctis; R. De Vita; P. V. Degtyarenko; H. Denizli; L. Dennis; K. V. Dharmawardane; R. Dickson; C. Djalali; G. E. Dodge; J. Donnelly; D. Doughty; Michael Dugger; S. Dytman; O. P. Dzyubak; H. Egiyan; K. S. Egiyan; P. Eugenio; R. Fatemi; R. J. Feuerbach; T. A. Forest; H. Funsten; G. Gavalian; N. G. Gevorgyan; G. P. Gilfoyle; K. L. Giovanetti; F. X. Girod; J. T. Goetz; R. W. Gothe; K. A. Griffioen; M. Guidal; M. Guillo; N. Guler; L. Guo; V. Gyurjyan; C. Hadjidakis; J. Hardie; N. Hassall; F. W. Hersman; K. Hicks; I. Hleiqawi; M. Holtrop; J. Hu; M. Huertas; C. E. Hyde; Y. Ilieva; D. G. Ireland; M. M. Ito; D. Jenkins; H. S. Jo; K. Joo; H. G. Juengst; J. D. Kellie; M. Khandaker; K. Y. Kim; K. Kim; W. Kim; A. Klein; F. J. Klein; A. Klimenko; M. Klusman; Z. Krahn; L. H. Kramer; V. Kubarovsky; J. Kuhn; S. E. Kuhn; S. Kuleshov; J. Lachniet; J. M. Laget; J. Langheinrich; D. Lawrence; T. Lee; K. Livingston; N. Markov; M. McCracken; B. McKinnon; J. W C McNabb; B. A. Mecking; M. D. Mestayer; C. A. Meyer; T. Mibe; K. Mikhailov; T. Mineeva; R. Minehart; M. Mirazita; R. Miskimen; K. Moriya; S. A. Morrow; J. Mueller; G. S. Mutchler; P. Nadel-Turonski; R. Nasseripour; S. Niccolai; G. Niculescu; I. Niculescu; B. B. Niczyporuk; R. A. Niyazov; G. V. O'Rielly; M. Osipenko; A. I. Ostrovidov; K. Park; E. Pasyuk; C. Paterson; J. Pierce; N. Pivnyuk; D. Pocanic; O. Pogorelko; S. Pozdniakov; J. W. Price; Y. Prok; D. Protopopescu; B. A. Raue; G. Ricco; M. Ripani; Barry Ritchie; G. Rosner; P. Rossi; D. Rowntree; P. D. Rubin; F. Sabatié; C. Salgado; J. P. Santoro; V. Sapunenko; R. A. Schumacher; V. S. Serov; Y. G. Sharabian; D. Sharov; J. Shaw; E. S. Smith; L. C. Smith; D. I. Sober; A. Stavinsky; S. Stepanyan; B. E. Stokes; P. Stoler; K. Stopani; S. Strauch; M. Taiuti; S. Taylor; D. J. Tedeschi; R. Thompson; A. Tkabladze; S. Tkachenko; L. Todor; C. Tur; M. Ungaro; M. F. Vineyard; A. V. Vlassov; L. B. Weinstein; D. P. Weygand; M. Williams; E. Wolin; M. H. Wood; A. Yegneswaran; L. Zana; J. Zhang

doi:10.1103/PhysRevC.79.015204

Electroproduction of pπ+π- off protons at 0.2<Q2<0.6 GeV2 and 1.3<W<1.57 GeV with the CLAS detector

G. V. Fedotov, V. I. Mokeev, V. D. Burkert, L. Elouadrhiri, E. N. Golovatch, B. S. Ishkhanov, E. L. Isupov, N. V. Shvedunov, G. Adams, M. J. Amaryan, P. Ambrozewicz, M. Anghinolfi, B. Asavapibhop, G. Asryan, H. Avakian, H. Baghdasaryan, N. Baillie, J. P. Ball, N. A. Baltzell, V. BatourineM. Battaglieri, I. Bedlinskiy, M. Bektasoglu, M. Bellis, N. Benmouna, A. S. Biselli, B. E. Bonner, S. Bouchigny, S. Boiarinov, R. Bradford, D. Branford, W. K. Brooks, S. Bültmann, C. Butuceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, B. Carnahan, S. Chen, P. L. Cole, P. Coltharp, P. Corvisiero, D. Crabb, H. Crannell, V. Crede, J. P. Cummings, N. B. Dashyan, E. De Sanctis, R. De Vita, P. V. Degtyarenko, H. Denizli, L. Dennis, K. V. Dharmawardane, R. Dickson, C. Djalali, G. E. Dodge, J. Donnelly, D. Doughty, Michael Dugger, S. Dytman, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, P. Eugenio, R. Fatemi, R. J. Feuerbach, T. A. Forest, H. Funsten, G. Gavalian, N. G. Gevorgyan, G. P. Gilfoyle, K. L. Giovanetti, F. X. Girod, J. T. Goetz, R. W. Gothe, K. A. Griffioen, M. Guidal, M. Guillo, N. Guler, L. Guo, V. Gyurjyan, C. Hadjidakis, J. Hardie, N. Hassall, F. W. Hersman, K. Hicks, I. Hleiqawi, M. Holtrop, J. Hu, M. Huertas, C. E. Hyde, Y. Ilieva, D. G. Ireland, M. M. Ito, D. Jenkins, H. S. Jo, K. Joo, H. G. Juengst, J. D. Kellie, M. Khandaker, K. Y. Kim, K. Kim, W. Kim, A. Klein, F. J. Klein, A. Klimenko, M. Klusman, Z. Krahn, L. H. Kramer, V. Kubarovsky, J. Kuhn, S. E. Kuhn, S. Kuleshov, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, T. Lee, K. Livingston, N. Markov, M. McCracken, B. McKinnon, J. W C McNabb, B. A. Mecking, M. D. Mestayer, C. A. Meyer, T. Mibe, K. Mikhailov, T. Mineeva, R. Minehart, M. Mirazita, R. Miskimen, K. Moriya, S. A. Morrow, J. Mueller, G. S. Mutchler, P. Nadel-Turonski, R. Nasseripour, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, R. A. Niyazov, G. V. O'Rielly, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, C. Paterson, J. Pierce, N. Pivnyuk, D. Pocanic, O. Pogorelko, S. Pozdniakov, J. W. Price, Y. Prok, D. Protopopescu, B. A. Raue, G. Ricco, M. Ripani, Barry Ritchie, G. Rosner, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, C. Salgado, J. P. Santoro, V. Sapunenko, R. A. Schumacher, V. S. Serov, Y. G. Sharabian, D. Sharov, J. Shaw, E. S. Smith, L. C. Smith, D. I. Sober, A. Stavinsky, S. Stepanyan, B. E. Stokes, P. Stoler, K. Stopani, S. Strauch, M. Taiuti, S. Taylor, D. J. Tedeschi, R. Thompson, A. Tkabladze, S. Tkachenko, L. Todor, C. Tur, M. Ungaro, M. F. Vineyard, A. V. Vlassov, L. B. Weinstein, D. P. Weygand, M. Williams, E. Wolin, M. H. Wood, A. Yegneswaran, L. Zana, J. Zhang

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

40 Scopus citations

Abstract

This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process ep→e'pπ+π-. The data were collected with the CLAS detector at Jefferson Laboratory. Measurements were carried out in the as yet unexplored kinematic region of photon virtuality 0.2<Q2<0.6 GeV2 and invariant mass of the final hadron system W from 1.3 to 1.57 GeV. For the first time, nine independent one-fold differential cross sections were determined in each bin of W and Q2 covered by the measurements. A phenomenological analysis of the data allowed us to establish the most significant mechanisms contributing to the reaction. The nonresonant mechanisms account for a major part of cross sections. However, we find sensitivity to s-channel excitations of low-mass nucleon resonances, especially to the N(1440)P11 and N(1520)D13 states in kinematic dependencies of the one-fold differential cross sections.

Original language	English (US)
Article number	015204
Journal	Physical Review C - Nuclear Physics
Volume	79
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.79.015204
State	Published - Jan 20 2009

ASJC Scopus subject areas

Nuclear and High Energy Physics

Access to Document

10.1103/PhysRevC.79.015204

Cite this

Fedotov, G. V., Mokeev, V. I., Burkert, V. D., Elouadrhiri, L., Golovatch, E. N., Ishkhanov, B. S., Isupov, E. L., Shvedunov, N. V., Adams, G., Amaryan, M. J., Ambrozewicz, P., Anghinolfi, M., Asavapibhop, B., Asryan, G., Avakian, H., Baghdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., ... Zhang, J. (2009). Electroproduction of pπ+π- off protons at 0.2<Q2<0.6 GeV2 and 1.3<W<1.57 GeV with the CLAS detector. Physical Review C - Nuclear Physics, 79(1), [015204]. https://doi.org/10.1103/PhysRevC.79.015204

Fedotov, GV, Mokeev, VI, Burkert, VD, Elouadrhiri, L, Golovatch, EN, Ishkhanov, BS, Isupov, EL, Shvedunov, NV, Adams, G, Amaryan, MJ, Ambrozewicz, P, Anghinolfi, M, Asavapibhop, B, Asryan, G, Avakian, H, Baghdasaryan, H, Baillie, N, Ball, JP, Baltzell, NA, Batourine, V, Battaglieri, M, Bedlinskiy, I, Bektasoglu, M, Bellis, M, Benmouna, N, Biselli, AS, Bonner, BE, Bouchigny, S, Boiarinov, S, Bradford, R, Branford, D, Brooks, WK, Bültmann, S, Butuceanu, C, Calarco, JR, Careccia, SL, Carman, DS, Carnahan, B, Chen, S, Cole, PL, Coltharp, P, Corvisiero, P, Crabb, D, Crannell, H, Crede, V, Cummings, JP, Dashyan, NB, De Sanctis, E, De Vita, R, Degtyarenko, PV, Denizli, H, Dennis, L, Dharmawardane, KV, Dickson, R, Djalali, C, Dodge, GE, Donnelly, J, Doughty, D, Dugger, M, Dytman, S, Dzyubak, OP, Egiyan, H, Egiyan, KS, Eugenio, P, Fatemi, R, Feuerbach, RJ, Forest, TA, Funsten, H, Gavalian, G, Gevorgyan, NG, Gilfoyle, GP, Giovanetti, KL, Girod, FX, Goetz, JT, Gothe, RW, Griffioen, KA, Guidal, M, Guillo, M, Guler, N, Guo, L, Gyurjyan, V, Hadjidakis, C, Hardie, J, Hassall, N, Hersman, FW, Hicks, K, Hleiqawi, I, Holtrop, M, Hu, J, Huertas, M, Hyde, CE, Ilieva, Y, Ireland, DG, Ito, MM, Jenkins, D, Jo, HS, Joo, K, Juengst, HG, Kellie, JD, Khandaker, M, Kim, KY, Kim, K, Kim, W, Klein, A, Klein, FJ, Klimenko, A, Klusman, M, Krahn, Z, Kramer, LH, Kubarovsky, V, Kuhn, J, Kuhn, SE, Kuleshov, S, Lachniet, J, Laget, JM, Langheinrich, J, Lawrence, D, Lee, T, Livingston, K, Markov, N, McCracken, M, McKinnon, B, McNabb, JWC, Mecking, BA, Mestayer, MD, Meyer, CA, Mibe, T, Mikhailov, K, Mineeva, T, Minehart, R, Mirazita, M, Miskimen, R, Moriya, K, Morrow, SA, Mueller, J, Mutchler, GS, Nadel-Turonski, P, Nasseripour, R, Niccolai, S, Niculescu, G, Niculescu, I, Niczyporuk, BB, Niyazov, RA, O'Rielly, GV, Osipenko, M, Ostrovidov, AI, Park, K, Pasyuk, E, Paterson, C, Pierce, J, Pivnyuk, N, Pocanic, D, Pogorelko, O, Pozdniakov, S, Price, JW, Prok, Y, Protopopescu, D, Raue, BA, Ricco, G, Ripani, M, Ritchie, B, Rosner, G, Rossi, P, Rowntree, D, Rubin, PD, Sabatié, F, Salgado, C, Santoro, JP, Sapunenko, V, Schumacher, RA, Serov, VS, Sharabian, YG, Sharov, D, Shaw, J, Smith, ES, Smith, LC, Sober, DI, Stavinsky, A, Stepanyan, S, Stokes, BE, Stoler, P, Stopani, K, Strauch, S, Taiuti, M, Taylor, S, Tedeschi, DJ, Thompson, R, Tkabladze, A, Tkachenko, S, Todor, L, Tur, C, Ungaro, M, Vineyard, MF, Vlassov, AV, Weinstein, LB, Weygand, DP, Williams, M, Wolin, E, Wood, MH, Yegneswaran, A, Zana, L & Zhang, J 2009, 'Electroproduction of pπ+π- off protons at 0.2<Q2<0.6 GeV2 and 1.3<W<1.57 GeV with the CLAS detector', Physical Review C - Nuclear Physics, vol. 79, no. 1, 015204. https://doi.org/10.1103/PhysRevC.79.015204

@article{8d79990a396b4d8d9583998de45a60cd,

title = "Electroproduction of pπ+π- off protons at 0.2<Q2<0.6 GeV2 and 1.3<W<1.57 GeV with the CLAS detector",

abstract = "This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process ep→e'pπ+π-. The data were collected with the CLAS detector at Jefferson Laboratory. Measurements were carried out in the as yet unexplored kinematic region of photon virtuality 0.2<Q2<0.6 GeV2 and invariant mass of the final hadron system W from 1.3 to 1.57 GeV. For the first time, nine independent one-fold differential cross sections were determined in each bin of W and Q2 covered by the measurements. A phenomenological analysis of the data allowed us to establish the most significant mechanisms contributing to the reaction. The nonresonant mechanisms account for a major part of cross sections. However, we find sensitivity to s-channel excitations of low-mass nucleon resonances, especially to the N(1440)P11 and N(1520)D13 states in kinematic dependencies of the one-fold differential cross sections.",

author = "Fedotov, {G. V.} and Mokeev, {V. I.} and Burkert, {V. D.} and L. Elouadrhiri and Golovatch, {E. N.} and Ishkhanov, {B. S.} and Isupov, {E. L.} and Shvedunov, {N. V.} and G. Adams and Amaryan, {M. J.} and P. Ambrozewicz and M. Anghinolfi and B. Asavapibhop and G. Asryan and H. Avakian and H. Baghdasaryan and N. Baillie and Ball, {J. P.} and Baltzell, {N. A.} and V. Batourine and M. Battaglieri and I. Bedlinskiy and M. Bektasoglu and M. Bellis and N. Benmouna and Biselli, {A. S.} and Bonner, {B. E.} and S. Bouchigny and S. Boiarinov and R. Bradford and D. Branford and Brooks, {W. K.} and S. B{\"u}ltmann and C. Butuceanu and Calarco, {J. R.} and Careccia, {S. L.} and Carman, {D. S.} and B. Carnahan and S. Chen and Cole, {P. L.} and P. Coltharp and P. Corvisiero and D. Crabb and H. Crannell and V. Crede and Cummings, {J. P.} and Dashyan, {N. B.} and {De Sanctis}, E. and {De Vita}, R. and Degtyarenko, {P. V.} and H. Denizli and L. Dennis and Dharmawardane, {K. V.} and R. Dickson and C. Djalali and Dodge, {G. E.} and J. Donnelly and D. Doughty and Michael Dugger and S. Dytman and Dzyubak, {O. P.} and H. Egiyan and Egiyan, {K. S.} and P. Eugenio and R. Fatemi and Feuerbach, {R. J.} and Forest, {T. A.} and H. Funsten and G. Gavalian and Gevorgyan, {N. G.} and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and Girod, {F. X.} and Goetz, {J. T.} 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 J. Hardie and N. Hassall and Hersman, {F. W.} and K. Hicks and I. Hleiqawi and M. Holtrop and J. Hu and M. Huertas and Hyde, {C. E.} and Y. Ilieva and Ireland, {D. G.} and Ito, {M. M.} and D. Jenkins and Jo, {H. S.} and K. Joo and Juengst, {H. G.} and Kellie, {J. D.} and M. Khandaker and Kim, {K. Y.} and K. Kim and W. Kim and A. Klein and Klein, {F. J.} and A. Klimenko and M. Klusman and Z. Krahn and Kramer, {L. H.} and V. Kubarovsky and J. Kuhn and Kuhn, {S. E.} and S. Kuleshov and J. Lachniet and Laget, {J. M.} and J. Langheinrich and D. Lawrence and T. Lee and K. Livingston and N. Markov and M. McCracken and B. McKinnon and McNabb, {J. W C} and Mecking, {B. A.} and Mestayer, {M. D.} and Meyer, {C. A.} and T. Mibe and K. Mikhailov and T. Mineeva and R. Minehart and M. Mirazita and R. Miskimen and K. Moriya and Morrow, {S. A.} and J. Mueller and Mutchler, {G. S.} and P. Nadel-Turonski and R. Nasseripour and S. Niccolai and G. Niculescu and I. Niculescu and Niczyporuk, {B. B.} and Niyazov, {R. A.} and O'Rielly, {G. V.} and M. Osipenko and Ostrovidov, {A. I.} and K. Park and E. Pasyuk and C. Paterson and J. Pierce and N. Pivnyuk and D. Pocanic and O. Pogorelko and S. Pozdniakov and Price, {J. W.} and Y. Prok and D. Protopopescu and Raue, {B. A.} and G. Ricco and M. Ripani and Barry Ritchie and G. Rosner and P. Rossi and D. Rowntree and Rubin, {P. D.} and F. Sabati{\'e} and C. Salgado and Santoro, {J. P.} and V. Sapunenko and Schumacher, {R. A.} and Serov, {V. S.} and Sharabian, {Y. G.} and D. Sharov and J. Shaw and Smith, {E. S.} and Smith, {L. C.} and Sober, {D. I.} and A. Stavinsky and S. Stepanyan and Stokes, {B. E.} and P. Stoler and K. Stopani and S. Strauch and M. Taiuti and S. Taylor and Tedeschi, {D. J.} and R. Thompson and A. Tkabladze and S. Tkachenko and L. Todor and C. Tur and M. Ungaro and Vineyard, {M. F.} and Vlassov, {A. V.} and Weinstein, {L. B.} and Weygand, {D. P.} and M. Williams and E. Wolin and Wood, {M. H.} and A. Yegneswaran and L. Zana and J. Zhang",

year = "2009",

month = jan,

day = "20",

doi = "10.1103/PhysRevC.79.015204",

language = "English (US)",

volume = "79",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

publisher = "American Physical Society",

number = "1",

}

TY - JOUR

T1 - Electroproduction of pπ+π- off protons at 0.2<Q2<0.6 GeV2 and 1.3<W<1.57 GeV with the CLAS detector

AU - Fedotov, G. V.

AU - Mokeev, V. I.

AU - Burkert, V. D.

AU - Elouadrhiri, L.

AU - Golovatch, E. N.

AU - Ishkhanov, B. S.

AU - Isupov, E. L.

AU - Shvedunov, N. V.

AU - Adams, G.

AU - Amaryan, M. J.

AU - Ambrozewicz, P.

AU - Anghinolfi, M.

AU - Asavapibhop, B.

AU - Asryan, G.

AU - Avakian, H.

AU - Baghdasaryan, H.

AU - Baillie, N.

AU - Ball, J. P.

AU - Baltzell, N. A.

AU - Batourine, V.

AU - Battaglieri, M.

AU - Bedlinskiy, I.

AU - Bektasoglu, M.

AU - Bellis, M.

AU - Benmouna, N.

AU - Biselli, A. S.

AU - Bonner, B. E.

AU - Bouchigny, S.

AU - Boiarinov, S.

AU - Bradford, R.

AU - Branford, D.

AU - Brooks, W. K.

AU - Bültmann, S.

AU - Butuceanu, C.

AU - Calarco, J. R.

AU - Careccia, S. L.

AU - Carman, D. S.

AU - Carnahan, B.

AU - Chen, S.

AU - Cole, P. L.

AU - Coltharp, P.

AU - Corvisiero, P.

AU - Crabb, D.

AU - Crannell, H.

AU - Crede, V.

AU - Cummings, J. P.

AU - Dashyan, N. B.

AU - De Sanctis, E.

AU - De Vita, R.

AU - Degtyarenko, P. V.

AU - Denizli, H.

AU - Dennis, L.

AU - Dharmawardane, K. V.

AU - Dickson, R.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Donnelly, J.

AU - Doughty, D.

AU - Dugger, Michael

AU - Dytman, S.

AU - Dzyubak, O. P.

AU - Egiyan, H.

AU - Egiyan, K. S.

AU - Eugenio, P.

AU - Fatemi, R.

AU - Feuerbach, R. J.

AU - Forest, T. A.

AU - Funsten, H.

AU - Gavalian, G.

AU - Gevorgyan, N. G.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Guillo, M.

AU - Guler, N.

AU - Guo, L.

AU - Gyurjyan, V.

AU - Hadjidakis, C.

AU - Hardie, J.

AU - Hassall, N.

AU - Hersman, F. W.

AU - Hicks, K.

AU - Hleiqawi, I.

AU - Holtrop, M.

AU - Hu, J.

AU - Huertas, M.

AU - Hyde, C. E.

AU - Ilieva, Y.

AU - Ireland, D. G.

AU - Ito, M. M.

AU - Jenkins, D.

AU - Jo, H. S.

AU - Joo, K.

AU - Juengst, H. G.

AU - Kellie, J. D.

AU - Khandaker, M.

AU - Kim, K. Y.

AU - Kim, K.

AU - Kim, W.

AU - Klein, A.

AU - Klein, F. J.

AU - Klimenko, A.

AU - Klusman, M.

AU - Krahn, Z.

AU - Kramer, L. H.

AU - Kubarovsky, V.

AU - Kuhn, J.

AU - Kuhn, S. E.

AU - Kuleshov, S.

AU - Lachniet, J.

AU - Laget, J. M.

AU - Langheinrich, J.

AU - Lawrence, D.

AU - Lee, T.

AU - Livingston, K.

AU - Markov, N.

AU - McCracken, M.

AU - McKinnon, B.

AU - McNabb, J. W C

AU - Mecking, B. A.

AU - Mestayer, M. D.

AU - Meyer, C. A.

AU - Mibe, T.

AU - Mikhailov, K.

AU - Mineeva, T.

AU - Minehart, R.

AU - Mirazita, M.

AU - Miskimen, R.

AU - Moriya, K.

AU - Morrow, S. A.

AU - Mueller, J.

AU - Mutchler, G. S.

AU - Nadel-Turonski, P.

AU - Nasseripour, R.

AU - Niccolai, S.

AU - Niculescu, G.

AU - Niculescu, I.

AU - Niczyporuk, B. B.

AU - Niyazov, R. A.

AU - O'Rielly, G. V.

AU - Osipenko, M.

AU - Ostrovidov, A. I.

AU - Park, K.

AU - Pasyuk, E.

AU - Paterson, C.

AU - Pierce, J.

AU - Pivnyuk, N.

AU - Pocanic, D.

AU - Pogorelko, O.

AU - Pozdniakov, S.

AU - Price, J. W.

AU - Prok, Y.

AU - Protopopescu, D.

AU - Raue, B. A.

AU - Ricco, G.

AU - Ripani, M.

AU - Ritchie, Barry

AU - Rosner, G.

AU - Rossi, P.

AU - Rowntree, D.

AU - Rubin, P. D.

AU - Sabatié, F.

AU - Salgado, C.

AU - Santoro, J. P.

AU - Sapunenko, V.

AU - Schumacher, R. A.

AU - Serov, V. S.

AU - Sharabian, Y. G.

AU - Sharov, D.

AU - Shaw, J.

AU - Smith, E. S.

AU - Smith, L. C.

AU - Sober, D. I.

AU - Stavinsky, A.

AU - Stepanyan, S.

AU - Stokes, B. E.

AU - Stoler, P.

AU - Stopani, K.

AU - Strauch, S.

AU - Taiuti, M.

AU - Taylor, S.

AU - Tedeschi, D. J.

AU - Thompson, R.

AU - Tkabladze, A.

AU - Tkachenko, S.

AU - Todor, L.

AU - Tur, C.

AU - Ungaro, M.

AU - Vineyard, M. F.

AU - Vlassov, A. V.

AU - Weinstein, L. B.

AU - Weygand, D. P.

AU - Williams, M.

AU - Wolin, E.

AU - Wood, M. H.

AU - Yegneswaran, A.

AU - Zana, L.

AU - Zhang, J.

PY - 2009/1/20

Y1 - 2009/1/20

N2 - This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process ep→e'pπ+π-. The data were collected with the CLAS detector at Jefferson Laboratory. Measurements were carried out in the as yet unexplored kinematic region of photon virtuality 0.2<Q2<0.6 GeV2 and invariant mass of the final hadron system W from 1.3 to 1.57 GeV. For the first time, nine independent one-fold differential cross sections were determined in each bin of W and Q2 covered by the measurements. A phenomenological analysis of the data allowed us to establish the most significant mechanisms contributing to the reaction. The nonresonant mechanisms account for a major part of cross sections. However, we find sensitivity to s-channel excitations of low-mass nucleon resonances, especially to the N(1440)P11 and N(1520)D13 states in kinematic dependencies of the one-fold differential cross sections.

AB - This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process ep→e'pπ+π-. The data were collected with the CLAS detector at Jefferson Laboratory. Measurements were carried out in the as yet unexplored kinematic region of photon virtuality 0.2<Q2<0.6 GeV2 and invariant mass of the final hadron system W from 1.3 to 1.57 GeV. For the first time, nine independent one-fold differential cross sections were determined in each bin of W and Q2 covered by the measurements. A phenomenological analysis of the data allowed us to establish the most significant mechanisms contributing to the reaction. The nonresonant mechanisms account for a major part of cross sections. However, we find sensitivity to s-channel excitations of low-mass nucleon resonances, especially to the N(1440)P11 and N(1520)D13 states in kinematic dependencies of the one-fold differential cross sections.

UR - http://www.scopus.com/inward/record.url?scp=58849109977&partnerID=8YFLogxK

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U2 - 10.1103/PhysRevC.79.015204

DO - 10.1103/PhysRevC.79.015204

M3 - Article

AN - SCOPUS:58849109977

SN - 0556-2813

VL - 79

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 1

M1 - 015204

ER -

Electroproduction of pπ+π- off protons at 0.2<Q2<0.6 GeV2 and 1.3<W<1.57 GeV with the CLAS detector

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