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 | |
| State | Published - Jan 20 2009 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
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Electroproduction of pπ+π- off protons at 0.2<Q2<0.6 GeV2 and 1.3<W<1.57 GeV with the CLAS detector. / 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.; Batourine, V.; Battaglieri, M.; Bedlinskiy, I.; Bektasoglu, M.; Bellis, M.; Benmouna, N.; Biselli, A. S.; Bonner, B. E.; Bouchigny, S.; Boiarinov, S.; Bradford, R.; Branford, D.; Brooks, W. K.; Bültmann, S.; Butuceanu, C.; Calarco, J. R.; Careccia, S. L.; Carman, D. S.; Carnahan, B.; Chen, S.; Cole, P. L.; Coltharp, P.; Corvisiero, P.; Crabb, D.; Crannell, H.; Crede, V.; Cummings, J. P.; Dashyan, N. B.; De Sanctis, E.; De Vita, R.; Degtyarenko, P. V.; Denizli, H.; Dennis, L.; Dharmawardane, K. V.; Dickson, R.; Djalali, C.; Dodge, G. E.; Donnelly, J.; Doughty, D.; Dugger, Michael; Dytman, S.; Dzyubak, O. P.; Egiyan, H.; Egiyan, K. S.; Eugenio, P.; Fatemi, R.; Feuerbach, R. J.; Forest, T. A.; Funsten, H.; Gavalian, G.; Gevorgyan, N. G.; Gilfoyle, G. P.; Giovanetti, K. L.; Girod, F. X.; Goetz, J. T.; Gothe, R. W.; Griffioen, K. A.; Guidal, M.; Guillo, M.; Guler, N.; Guo, L.; Gyurjyan, V.; Hadjidakis, C.; Hardie, J.; Hassall, N.; Hersman, F. W.; Hicks, K.; Hleiqawi, I.; Holtrop, M.; Hu, J.; Huertas, M.; Hyde, C. E.; Ilieva, Y.; Ireland, D. G.; Ito, M. M.; Jenkins, D.; Jo, H. S.; Joo, K.; Juengst, H. G.; Kellie, J. D.; Khandaker, M.; Kim, K. Y.; Kim, K.; Kim, W.; Klein, A.; Klein, F. J.; Klimenko, A.; Klusman, M.; Krahn, Z.; Kramer, L. H.; Kubarovsky, V.; Kuhn, J.; Kuhn, S. E.; Kuleshov, S.; Lachniet, J.; Laget, J. M.; Langheinrich, J.; Lawrence, D.; Lee, T.; Livingston, K.; Markov, N.; McCracken, M.; McKinnon, B.; McNabb, J. W C; Mecking, B. A.; Mestayer, M. D.; Meyer, C. A.; Mibe, T.; Mikhailov, K.; Mineeva, T.; Minehart, R.; Mirazita, M.; Miskimen, R.; Moriya, K.; Morrow, S. A.; Mueller, J.; Mutchler, G. S.; Nadel-Turonski, P.; Nasseripour, R.; Niccolai, S.; Niculescu, G.; Niculescu, I.; Niczyporuk, B. B.; Niyazov, R. A.; O'Rielly, G. V.; Osipenko, M.; Ostrovidov, A. I.; Park, K.; Pasyuk, E.; Paterson, C.; Pierce, J.; Pivnyuk, N.; Pocanic, D.; Pogorelko, O.; Pozdniakov, S.; Price, J. W.; Prok, Y.; Protopopescu, D.; Raue, B. A.; Ricco, G.; Ripani, M.; Ritchie, Barry; Rosner, G.; Rossi, P.; Rowntree, D.; Rubin, P. D.; Sabatié, F.; Salgado, C.; Santoro, J. P.; Sapunenko, V.; Schumacher, R. A.; Serov, V. S.; Sharabian, Y. G.; Sharov, D.; Shaw, J.; Smith, E. S.; Smith, L. C.; Sober, D. I.; Stavinsky, A.; Stepanyan, S.; Stokes, B. E.; Stoler, P.; Stopani, K.; Strauch, S.; Taiuti, M.; Taylor, S.; Tedeschi, D. J.; Thompson, R.; Tkabladze, A.; Tkachenko, S.; Todor, L.; Tur, C.; Ungaro, M.; Vineyard, M. F.; Vlassov, A. V.; Weinstein, L. B.; Weygand, D. P.; Williams, M.; Wolin, E.; Wood, M. H.; Yegneswaran, A.; Zana, L.; Zhang, J.
In: Physical Review C - Nuclear Physics, Vol. 79, No. 1, 015204, 20.01.2009.Research output: Contribution to journal › Article › peer-review
}
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
UR - http://www.scopus.com/inward/citedby.url?scp=58849109977&partnerID=8YFLogxK
U2 - 10.1103/PhysRevC.79.015204
DO - 10.1103/PhysRevC.79.015204
M3 - Article
AN - SCOPUS:58849109977
VL - 79
JO - Physical Review C - Nuclear Physics
JF - Physical Review C - Nuclear Physics
SN - 0556-2813
IS - 1
M1 - 015204
ER -