Q2 dependence of the S11(1535) photocoupling and evidence for a P-wave resonance in η electroproduction

H. Denizli; J. Mueller; S. Dytman; M. L. Leber; R. D. Levine; J. Miles; K. Y. Kim; G. Adams; M. J. Amaryan; P. Ambrozewicz; M. Anghinolfi; B. Asavapibhop; G. Asryan; H. Avakian; H. Bagdasaryan; N. Baillie; J. P. Ball; N. A. Baltzell; S. Barrow; V. Batourine; M. Battaglieri; K. Beard; I. Bedlinskiy; M. Bektasoglu; M. Bellis; N. Benmouna; N. Bianchi; A. S. Biselli; B. E. Bonner; S. Bouchigny; S. Boiarinov; R. Bradford; D. Branford; W. J. Briscoe; W. K. Brooks; S. Bültmann; V. D. Burkert; C. Butuceanu; J. R. Calarco; S. L. Careccia; D. S. Carman; C. Cetina; S. Chen; P. L. Cole; A. Coleman; P. Collins; P. Coltharp; D. Cords; P. Corvisiero; D. Crabb; V. Crede; J. P. Cummings; N. Dashyan; R. De Vita; E. De Sanctis; P. V. Degtyarenko; L. Dennis; A. Deur; K. S. Dhuga; R. Dickson; C. Djalali; G. E. Dodge; J. Donnelly; D. Doughty; P. Dragovitsch; M. Dugger; O. P. Dzyubak; H. Egiyan; K. S. Egiyan; L. El Fassi; L. Elouadrhiri; A. Empl; P. Eugenio; L. Farhi; R. Fatemi; G. Fedotov; G. Feldman; R. J. Feuerbach; T. A. Forest; V. Frolov; H. Funsten; S. J. Gaff; M. Garçon; G. Gavalian; G. P. Gilfoyle; K. L. Giovanetti; P. Girard; F. X. Girod; J. T. Goetz; A. Gonenc; R. W. Gothe; K. A. Griffioen; M. Guidal; M. Guillo; N. Guler; L. Guo; V. Gyurjyan; K. Hafidi; H. Hakobyan; 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. G. Ireland; B. S. Ishkhanov; E. L. Isupov; M. M. Ito; D. Jenkins; H. S. Jo; K. Joo; H. G. Juengst; N. Kalantarians; J. H. Kelley; J. D. Kellie; M. Khandaker; K. Kim; W. Kim; A. Klein; F. J. Klein; M. Klusman; M. Kossov; L. H. Kramer; V. Kubarovsky; J. Kuhn; S. E. Kuhn; S. V. Kuleshov; J. Lachniet; J. M. Laget; J. Langheinrich; D. Lawrence; K. Livingston; H. Y. Lu; K. Lukashin; M. MacCormick; J. J. Manak; N. Markov; S. McAleer; B. McKinnon; J. W.C. McNabb; B. A. Mecking; M. D. Mestayer; C. A. Meyer; T. Mibe; K. Mikhailov; R. Minehart; M. Mirazita; R. Miskimen; V. Mokeev; K. Moriya; S. A. Morrow; M. Moteabbed; V. Muccifora; G. S. Mutchler; P. Nadel-Turonski; J. Napolitano; R. Nasseripour; S. O. Nelson; S. Niccolai; G. Niculescu; I. Niculescu; B. B. Niczyporuk; M. R. Niroula; R. A. Niyazov; M. Nozar; G. V. O'Rielly; M. Osipenko; A. I. Ostrovidov; K. Park; E. Pasyuk; C. Paterson; G. Peterson; S. A. Philips; J. Pierce; 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; B. G. Ritchie; F. Ronchetti; G. Rosner; P. Rossi; D. Rowntree; P. D. Rubin; F. Sabatié; K. Sabourov; J. Salamanca; C. Salgado; J. P. Santoro; V. Sapunenko; R. A. Schumacher; V. S. Serov; A. Shafi; Y. G. Sharabian; J. Shaw; N. V. Shvedunov; S. Simionatto; A. V. Skabelin; E. S. Smith; L. C. Smith; D. I. Sober; D. Sokhan; M. Spraker; A. Stavinsky; S. S. Stepanyan; 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; S. Tkachenko; C. Tur; M. Ungaro; M. F. Vineyard; A. V. Vlassov; K. Wang; D. P. Watts; L. B. Weinstein; H. Weller; D. P. Weygand; M. Williams; E. Wolin; M. H. Wood; A. Yegneswaran; J. Yun; L. Zana; J. Zhang; B. Zhao; Z. W. Zhao

doi:10.1103/PhysRevC.76.015204

Q2 dependence of the S11(1535) photocoupling and evidence for a P-wave resonance in η electroproduction

H. Denizli, J. Mueller, S. Dytman, M. L. Leber, R. D. Levine, J. Miles, K. Y. Kim, G. Adams, M. J. Amaryan, P. Ambrozewicz, M. Anghinolfi, B. Asavapibhop, G. Asryan, H. Avakian, H. Bagdasaryan, N. Baillie, J. P. Ball, N. A. Baltzell, S. Barrow, V. BatourineM. Battaglieri, K. Beard, I. Bedlinskiy, M. Bektasoglu, M. Bellis, N. Benmouna, N. Bianchi, A. S. Biselli, B. E. Bonner, S. Bouchigny, S. Boiarinov, R. Bradford, D. Branford, W. J. Briscoe, W. K. Brooks, S. Bültmann, V. D. Burkert, C. Butuceanu, J. R. Calarco, S. L. Careccia, D. S. Carman, C. Cetina, S. Chen, P. L. Cole, A. Coleman, P. Collins, P. Coltharp, D. Cords, P. Corvisiero, D. Crabb, V. Crede, J. P. Cummings, N. Dashyan, R. De Vita, E. De Sanctis, P. V. Degtyarenko, L. Dennis, A. Deur, K. S. Dhuga, R. Dickson, C. Djalali, G. E. Dodge, J. Donnelly, D. Doughty, P. Dragovitsch, M. Dugger, O. P. Dzyubak, H. Egiyan, K. S. Egiyan, L. El Fassi, L. Elouadrhiri, A. Empl, P. Eugenio, L. Farhi, R. Fatemi, G. Fedotov, G. Feldman, R. J. Feuerbach, T. A. Forest, V. Frolov, H. Funsten, S. J. Gaff, M. Garçon, G. Gavalian, G. P. Gilfoyle, K. L. Giovanetti, P. Girard, F. X. Girod, J. T. Goetz, A. Gonenc, R. W. Gothe, K. A. Griffioen, M. Guidal, M. Guillo, N. Guler, L. Guo, V. Gyurjyan, K. Hafidi, H. Hakobyan, 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. G. Ireland, B. S. Ishkhanov, E. L. Isupov, M. M. Ito, D. Jenkins, H. S. Jo, K. Joo, H. G. Juengst, N. Kalantarians, J. H. Kelley, J. D. Kellie, M. Khandaker, K. Kim, W. Kim, A. Klein, F. J. Klein, M. Klusman, M. Kossov, L. H. Kramer, V. Kubarovsky, J. Kuhn, S. E. Kuhn, S. V. Kuleshov, J. Lachniet, J. M. Laget, J. Langheinrich, D. Lawrence, K. Livingston, H. Y. Lu, K. Lukashin, M. MacCormick, J. J. Manak, N. Markov, S. McAleer, B. McKinnon, J. W.C. McNabb, B. A. Mecking, M. D. Mestayer, C. A. Meyer, T. Mibe, K. Mikhailov, R. Minehart, M. Mirazita, R. Miskimen, V. Mokeev, K. Moriya, S. A. Morrow, M. Moteabbed, V. Muccifora, G. S. Mutchler, P. Nadel-Turonski, J. Napolitano, R. Nasseripour, S. O. Nelson, S. Niccolai, G. Niculescu, I. Niculescu, B. B. Niczyporuk, M. R. Niroula, R. A. Niyazov, M. Nozar, G. V. O'Rielly, M. Osipenko, A. I. Ostrovidov, K. Park, E. Pasyuk, C. Paterson, G. Peterson, S. A. Philips, J. Pierce, 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, B. G. Ritchie, F. Ronchetti, G. Rosner, P. Rossi, D. Rowntree, P. D. Rubin, F. Sabatié, K. Sabourov, J. Salamanca, C. Salgado, J. P. Santoro, V. Sapunenko, R. A. Schumacher, V. S. Serov, A. Shafi, Y. G. Sharabian, J. Shaw, N. V. Shvedunov, S. Simionatto, A. V. Skabelin, E. S. Smith, L. C. Smith, D. I. Sober, D. Sokhan, M. Spraker, A. Stavinsky, S. S. Stepanyan, 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, S. Tkachenko, C. Tur, M. Ungaro, M. F. Vineyard, A. V. Vlassov, K. Wang, D. P. Watts, L. B. Weinstein, H. Weller, D. P. Weygand, M. Williams, E. Wolin, M. H. Wood, A. Yegneswaran, J. Yun, L. Zana, J. Zhang, B. Zhao, Z. W. Zhao

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

96 Scopus citations

Abstract

New cross sections for the reaction ep→e'ηp are reported for total center-of-mass energy W=1.5-2.3 GeV and invariant squared momentum transfer Q2=0.13-3.3 GeV2. This large kinematic range allows the extraction of new information about response functions, photocouplings, and ηN coupling strengths of baryon resonances. A sharp structure is seen at W~1.7 GeV. The shape of the differential cross section is indicative of the presence of a P-wave resonance that persists to high Q2. Improved values are derived for the photocoupling amplitude for the S11(1535) resonance. The new data greatly expand the Q2 range covered, and an interpretation of all data with a consistent parametrization is provided.

Original language	English
Article number	015204
Journal	Physical Review C - Nuclear Physics
Volume	76
Issue number	1
DOIs	https://doi.org/10.1103/PhysRevC.76.015204
State	Published - Jul 27 2007
Externally published	Yes

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10.1103/PhysRevC.76.015204

Cite this

Denizli, H., Mueller, J., Dytman, S., Leber, M. L., Levine, R. D., Miles, J., Kim, K. Y., Adams, G., Amaryan, M. J., Ambrozewicz, P., Anghinolfi, M., Asavapibhop, B., Asryan, G., Avakian, H., Bagdasaryan, H., Baillie, N., Ball, J. P., Baltzell, N. A., Barrow, S., ... Zhao, Z. W. (2007). Q2 dependence of the S11(1535) photocoupling and evidence for a P-wave resonance in η electroproduction. Physical Review C - Nuclear Physics, 76(1), Article 015204. https://doi.org/10.1103/PhysRevC.76.015204

@article{f11777d3343143d0980d0ea86348c05a,

title = "Q2 dependence of the S11(1535) photocoupling and evidence for a P-wave resonance in η electroproduction",

abstract = "New cross sections for the reaction ep→e'ηp are reported for total center-of-mass energy W=1.5-2.3 GeV and invariant squared momentum transfer Q2=0.13-3.3 GeV2. This large kinematic range allows the extraction of new information about response functions, photocouplings, and ηN coupling strengths of baryon resonances. A sharp structure is seen at W~1.7 GeV. The shape of the differential cross section is indicative of the presence of a P-wave resonance that persists to high Q2. Improved values are derived for the photocoupling amplitude for the S11(1535) resonance. The new data greatly expand the Q2 range covered, and an interpretation of all data with a consistent parametrization is provided.",

author = "H. Denizli and J. Mueller and S. Dytman and Leber, {M. L.} and Levine, {R. D.} and J. Miles and Kim, {K. Y.} and G. Adams and Amaryan, {M. J.} and P. Ambrozewicz and M. Anghinolfi and B. Asavapibhop and G. Asryan and H. Avakian and H. Bagdasaryan and N. Baillie and Ball, {J. P.} and Baltzell, {N. A.} and S. Barrow and V. Batourine and M. Battaglieri and K. Beard and I. Bedlinskiy and M. Bektasoglu and M. Bellis and N. Benmouna and N. Bianchi and Biselli, {A. S.} and Bonner, {B. E.} and S. Bouchigny and S. Boiarinov and R. Bradford and D. Branford and Briscoe, {W. J.} and Brooks, {W. K.} and S. B{\"u}ltmann and Burkert, {V. D.} and C. Butuceanu and Calarco, {J. R.} and Careccia, {S. L.} and Carman, {D. S.} and C. Cetina and S. Chen and Cole, {P. L.} and A. Coleman and P. Collins and P. Coltharp and D. Cords and P. Corvisiero and D. Crabb and V. Crede and Cummings, {J. P.} and N. Dashyan and Vita, {R. De} and Sanctis, {E. De} and Degtyarenko, {P. V.} and L. Dennis and A. Deur and Dhuga, {K. S.} and R. Dickson and C. Djalali and Dodge, {G. E.} and J. Donnelly and D. Doughty and P. Dragovitsch and M. Dugger and Dzyubak, {O. P.} and H. Egiyan and Egiyan, {K. S.} and Fassi, {L. El} and L. Elouadrhiri and A. Empl and P. Eugenio and L. Farhi and R. Fatemi and G. Fedotov and G. Feldman and Feuerbach, {R. J.} and Forest, {T. A.} and V. Frolov and H. Funsten and Gaff, {S. J.} and M. Gar{\c c}on and G. Gavalian and Gilfoyle, {G. P.} and Giovanetti, {K. L.} and P. Girard and Girod, {F. X.} and Goetz, {J. T.} and A. Gonenc and Gothe, {R. W.} and Griffioen, {K. A.} and M. Guidal and M. Guillo and N. Guler and L. Guo and V. Gyurjyan and K. Hafidi and H. Hakobyan 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 Ireland, {D. G.} and Ishkhanov, {B. S.} and Isupov, {E. L.} and Ito, {M. M.} and D. Jenkins and Jo, {H. S.} and K. Joo and Juengst, {H. G.} and N. Kalantarians and Kelley, {J. H.} and Kellie, {J. D.} and M. Khandaker and K. Kim and W. Kim and A. Klein and Klein, {F. J.} and M. Klusman and M. Kossov and Kramer, {L. H.} and V. Kubarovsky and J. Kuhn and Kuhn, {S. E.} and Kuleshov, {S. V.} and J. Lachniet and Laget, {J. M.} and J. Langheinrich and D. Lawrence and K. Livingston and Lu, {H. Y.} and K. Lukashin and M. MacCormick and Manak, {J. J.} and N. Markov and S. McAleer 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 R. Minehart and M. Mirazita and R. Miskimen and V. Mokeev and K. Moriya and Morrow, {S. A.} and M. Moteabbed and V. Muccifora and Mutchler, {G. S.} and P. Nadel-Turonski and J. Napolitano and R. Nasseripour and Nelson, {S. O.} and S. Niccolai and G. Niculescu and I. Niculescu and Niczyporuk, {B. B.} and Niroula, {M. R.} 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 C. Paterson and G. Peterson and Philips, {S. A.} and J. Pierce 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 Ritchie, {B. G.} and F. Ronchetti and G. Rosner and P. Rossi and D. Rowntree and Rubin, {P. D.} and F. Sabati{\'e} and K. Sabourov and J. Salamanca and C. Salgado and Santoro, {J. P.} and V. Sapunenko and Schumacher, {R. A.} and Serov, {V. S.} and A. Shafi and Sharabian, {Y. G.} and J. Shaw and Shvedunov, {N. V.} and S. Simionatto and Skabelin, {A. V.} and Smith, {E. S.} and Smith, {L. C.} and Sober, {D. I.} and D. Sokhan and M. Spraker and A. Stavinsky and Stepanyan, {S. S.} and S. Stepanyan 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 S. Tkachenko and C. Tur and M. Ungaro and Vineyard, {M. F.} and Vlassov, {A. V.} and K. Wang and Watts, {D. P.} 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 and J. Zhang and B. Zhao and Zhao, {Z. W.}",

year = "2007",

month = jul,

day = "27",

doi = "10.1103/PhysRevC.76.015204",

language = "English",

volume = "76",

journal = "Physical Review C - Nuclear Physics",

issn = "0556-2813",

number = "1",

}

Denizli, H, Mueller, J, Dytman, S, Leber, ML, Levine, RD, Miles, J, Kim, KY, Adams, G, Amaryan, MJ, Ambrozewicz, P, Anghinolfi, M, Asavapibhop, B, Asryan, G, Avakian, H, Bagdasaryan, H, Baillie, N, Ball, JP, Baltzell, NA, Barrow, S, Batourine, V, Battaglieri, M, Beard, K, Bedlinskiy, I, Bektasoglu, M, Bellis, M, Benmouna, N, Bianchi, N, Biselli, AS, Bonner, BE, Bouchigny, S, Boiarinov, S, Bradford, R, Branford, D, Briscoe, WJ, Brooks, WK, Bültmann, S, Burkert, VD, Butuceanu, C, Calarco, JR, Careccia, SL, Carman, DS, Cetina, C, Chen, S, Cole, PL, Coleman, A, Collins, P, Coltharp, P, Cords, D, Corvisiero, P, Crabb, D, Crede, V, Cummings, JP, Dashyan, N, Vita, RD, Sanctis, ED, Degtyarenko, PV, Dennis, L, Deur, A, Dhuga, KS, Dickson, R, Djalali, C, Dodge, GE, Donnelly, J, Doughty, D, Dragovitsch, P, Dugger, M, Dzyubak, OP, Egiyan, H, Egiyan, KS, Fassi, LE, Elouadrhiri, L, Empl, A, Eugenio, P, Farhi, L, Fatemi, R, Fedotov, G, Feldman, G, Feuerbach, RJ, Forest, TA, Frolov, V, Funsten, H, Gaff, SJ, Garçon, M, Gavalian, G, Gilfoyle, GP, Giovanetti, KL, Girard, P, Girod, FX, Goetz, JT, Gonenc, A, Gothe, RW, Griffioen, KA, Guidal, M, Guillo, M, Guler, N, Guo, L, Gyurjyan, V, Hafidi, K, Hakobyan, H, Hakobyan, RS, Hardie, J, Heddle, D, Hersman, FW, Hicks, K, Hleiqawi, I, Holtrop, M, Hu, J, Hyde-Wright, CE, Ilieva, Y, Ireland, DG, Ishkhanov, BS, Isupov, EL, Ito, MM, Jenkins, D, Jo, HS, Joo, K, Juengst, HG, Kalantarians, N, Kelley, JH, Kellie, JD, Khandaker, M, Kim, K, Kim, W, Klein, A, Klein, FJ, Klusman, M, Kossov, M, Kramer, LH, Kubarovsky, V, Kuhn, J, Kuhn, SE, Kuleshov, SV, Lachniet, J, Laget, JM, Langheinrich, J, Lawrence, D, Livingston, K, Lu, HY, Lukashin, K, MacCormick, M, Manak, JJ, Markov, N, McAleer, S, McKinnon, B, McNabb, JWC, Mecking, BA, Mestayer, MD, Meyer, CA, Mibe, T, Mikhailov, K, Minehart, R, Mirazita, M, Miskimen, R, Mokeev, V, Moriya, K, Morrow, SA, Moteabbed, M, Muccifora, V, Mutchler, GS, Nadel-Turonski, P, Napolitano, J, Nasseripour, R, Nelson, SO, Niccolai, S, Niculescu, G, Niculescu, I, Niczyporuk, BB, Niroula, MR, Niyazov, RA, Nozar, M, O'Rielly, GV, Osipenko, M, Ostrovidov, AI, Park, K, Pasyuk, E, Paterson, C, Peterson, G, Philips, SA, Pierce, J, 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, BG, Ronchetti, F, Rosner, G, Rossi, P, Rowntree, D, Rubin, PD, Sabatié, F, Sabourov, K, Salamanca, J, Salgado, C, Santoro, JP, Sapunenko, V, Schumacher, RA, Serov, VS, Shafi, A, Sharabian, YG, Shaw, J, Shvedunov, NV, Simionatto, S, Skabelin, AV, Smith, ES, Smith, LC, Sober, DI, Sokhan, D, Spraker, M, Stavinsky, A, Stepanyan, SS, Stepanyan, S, Stokes, BE, Stoler, P, Strakovsky, II, Strauch, S, Taiuti, M, Taylor, S, Tedeschi, DJ, Thoma, U, Thompson, R, Tkabladze, A, Tkachenko, S, Tur, C, Ungaro, M, Vineyard, MF, Vlassov, AV, Wang, K, Watts, DP, Weinstein, LB, Weller, H, Weygand, DP, Williams, M, Wolin, E, Wood, MH, Yegneswaran, A, Yun, J, Zana, L, Zhang, J, Zhao, B & Zhao, ZW 2007, 'Q2 dependence of the S11(1535) photocoupling and evidence for a P-wave resonance in η electroproduction', Physical Review C - Nuclear Physics, vol. 76, no. 1, 015204. https://doi.org/10.1103/PhysRevC.76.015204

TY - JOUR

T1 - Q2 dependence of the S11(1535) photocoupling and evidence for a P-wave resonance in η electroproduction

AU - Denizli, H.

AU - Mueller, J.

AU - Dytman, S.

AU - Leber, M. L.

AU - Levine, R. D.

AU - Miles, J.

AU - Kim, K. Y.

AU - Adams, G.

AU - Amaryan, M. J.

AU - Ambrozewicz, P.

AU - Anghinolfi, M.

AU - Asavapibhop, B.

AU - Asryan, G.

AU - Avakian, H.

AU - Bagdasaryan, H.

AU - Baillie, N.

AU - Ball, J. P.

AU - Baltzell, N. A.

AU - Barrow, S.

AU - Batourine, V.

AU - Battaglieri, M.

AU - Beard, K.

AU - Bedlinskiy, I.

AU - Bektasoglu, M.

AU - Bellis, M.

AU - Benmouna, N.

AU - Bianchi, N.

AU - Biselli, A. S.

AU - Bonner, B. E.

AU - Bouchigny, S.

AU - Boiarinov, S.

AU - Bradford, R.

AU - Branford, D.

AU - Briscoe, W. J.

AU - Brooks, W. K.

AU - Bültmann, S.

AU - Burkert, V. D.

AU - Butuceanu, C.

AU - Calarco, J. R.

AU - Careccia, S. L.

AU - Carman, D. S.

AU - Cetina, C.

AU - Chen, S.

AU - Cole, P. L.

AU - Coleman, A.

AU - Collins, P.

AU - Coltharp, P.

AU - Cords, D.

AU - Corvisiero, P.

AU - Crabb, D.

AU - Crede, V.

AU - Cummings, J. P.

AU - Dashyan, N.

AU - Vita, R. De

AU - Sanctis, E. De

AU - Degtyarenko, P. V.

AU - Dennis, L.

AU - Deur, A.

AU - Dhuga, K. S.

AU - Dickson, R.

AU - Djalali, C.

AU - Dodge, G. E.

AU - Donnelly, J.

AU - Doughty, D.

AU - Dragovitsch, P.

AU - Dugger, M.

AU - Dzyubak, O. P.

AU - Egiyan, H.

AU - Egiyan, K. S.

AU - Fassi, L. El

AU - Elouadrhiri, L.

AU - Empl, A.

AU - Eugenio, P.

AU - Farhi, L.

AU - Fatemi, R.

AU - Fedotov, G.

AU - Feldman, G.

AU - Feuerbach, R. J.

AU - Forest, T. A.

AU - Frolov, V.

AU - Funsten, H.

AU - Gaff, S. J.

AU - Garçon, M.

AU - Gavalian, G.

AU - Gilfoyle, G. P.

AU - Giovanetti, K. L.

AU - Girard, P.

AU - Girod, F. X.

AU - Goetz, J. T.

AU - Gonenc, A.

AU - Gothe, R. W.

AU - Griffioen, K. A.

AU - Guidal, M.

AU - Guillo, M.

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PY - 2007/7/27

Y1 - 2007/7/27

N2 - New cross sections for the reaction ep→e'ηp are reported for total center-of-mass energy W=1.5-2.3 GeV and invariant squared momentum transfer Q2=0.13-3.3 GeV2. This large kinematic range allows the extraction of new information about response functions, photocouplings, and ηN coupling strengths of baryon resonances. A sharp structure is seen at W~1.7 GeV. The shape of the differential cross section is indicative of the presence of a P-wave resonance that persists to high Q2. Improved values are derived for the photocoupling amplitude for the S11(1535) resonance. The new data greatly expand the Q2 range covered, and an interpretation of all data with a consistent parametrization is provided.

AB - New cross sections for the reaction ep→e'ηp are reported for total center-of-mass energy W=1.5-2.3 GeV and invariant squared momentum transfer Q2=0.13-3.3 GeV2. This large kinematic range allows the extraction of new information about response functions, photocouplings, and ηN coupling strengths of baryon resonances. A sharp structure is seen at W~1.7 GeV. The shape of the differential cross section is indicative of the presence of a P-wave resonance that persists to high Q2. Improved values are derived for the photocoupling amplitude for the S11(1535) resonance. The new data greatly expand the Q2 range covered, and an interpretation of all data with a consistent parametrization is provided.

UR - http://www.scopus.com/inward/record.url?scp=34547520769&partnerID=8YFLogxK

U2 - 10.1103/PhysRevC.76.015204

DO - 10.1103/PhysRevC.76.015204

M3 - Article

AN - SCOPUS:34547520769

SN - 0556-2813

VL - 76

JO - Physical Review C - Nuclear Physics

JF - Physical Review C - Nuclear Physics

IS - 1

M1 - 015204

ER -

Q2 dependence of the S11(1535) photocoupling and evidence for a P-wave resonance in η electroproduction

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