Electroproduction of pπ+π- [p pi superscript + pi superscript -] off protons at 0.2<Q2<0.6 GeV2 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] and 1.3<W<1.57 GeV with the CLAS detector
This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process ep→e'pπ+π- [ep→e prime p pi superscript + pi superscript -]. The data were collected with the CLAS detector at Jefferson Laboratory. Measurements were carried out i...
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| Format: | Article |
| Language: | en_US |
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American Physical Society
2011
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| Online Access: | http://hdl.handle.net/1721.1/65188 |
| _version_ | 1826199601058676736 |
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| author | Rowntree, D. |
| author2 | Massachusetts Institute of Technology. Department of Physics |
| author_facet | Massachusetts Institute of Technology. Department of Physics Rowntree, D. |
| author_sort | Rowntree, D. |
| collection | MIT |
| description | This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process ep→e'pπ+π- [ep→e prime p pi superscript + pi superscript -]. 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 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] 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 [Q superscript 2] 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 [N (1440) P subscript 11] and N(1520)D13 [N (1520) D subscript 13] states in kinematic dependencies of the one-fold differential cross sections. |
| first_indexed | 2024-09-23T11:22:31Z |
| format | Article |
| id | mit-1721.1/65188 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T11:22:31Z |
| publishDate | 2011 |
| publisher | American Physical Society |
| record_format | dspace |
| spelling | mit-1721.1/651882022-09-27T19:07:03Z Electroproduction of pπ+π- [p pi superscript + pi superscript -] off protons at 0.2<Q2<0.6 GeV2 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] and 1.3<W<1.57 GeV with the CLAS detector Rowntree, D. Massachusetts Institute of Technology. Department of Physics Massachusetts Institute of Technology. Laboratory for Nuclear Science Rowntree, D. Rowntree, D. This paper reports on the most comprehensive data set obtained on differential and fully integrated cross sections for the process ep→e'pπ+π- [ep→e prime p pi superscript + pi superscript -]. 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 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] 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 [Q superscript 2] 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 [N (1440) P subscript 11] and N(1520)D13 [N (1520) D subscript 13] states in kinematic dependencies of the one-fold differential cross sections. United States. Dept. of Energy National Science Foundation (U.S.) 2011-08-17T20:37:27Z 2011-08-17T20:37:27Z 2009-01 2008-09 Article http://purl.org/eprint/type/JournalArticle 0556-2813 http://hdl.handle.net/1721.1/65188 Fedotov, G. V. et al. “Electroproduction of Pπ^{+}π^{-} Off Protons at 0.2<Q^{2}<0.6 GeV^{2} and 1.3<W<1.57 GeV with the CLAS Detector.” Physical Review C 79.1 (2009) : n. pag. © 2009 The American Physical Society en_US http://dx.doi.org/10.1103/PhysRevC.79.015204 Physical review C Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Physical Society APS |
| spellingShingle | Rowntree, D. Electroproduction of pπ+π- [p pi superscript + pi superscript -] off protons at 0.2<Q2<0.6 GeV2 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] and 1.3<W<1.57 GeV with the CLAS detector |
| title | Electroproduction of pπ+π- [p pi superscript + pi superscript -] off protons at 0.2<Q2<0.6 GeV2 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] and 1.3<W<1.57 GeV with the CLAS detector |
| title_full | Electroproduction of pπ+π- [p pi superscript + pi superscript -] off protons at 0.2<Q2<0.6 GeV2 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] and 1.3<W<1.57 GeV with the CLAS detector |
| title_fullStr | Electroproduction of pπ+π- [p pi superscript + pi superscript -] off protons at 0.2<Q2<0.6 GeV2 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] and 1.3<W<1.57 GeV with the CLAS detector |
| title_full_unstemmed | Electroproduction of pπ+π- [p pi superscript + pi superscript -] off protons at 0.2<Q2<0.6 GeV2 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] and 1.3<W<1.57 GeV with the CLAS detector |
| title_short | Electroproduction of pπ+π- [p pi superscript + pi superscript -] off protons at 0.2<Q2<0.6 GeV2 [0.2 < Q superscript 2 < 0.6 GeV superscript 2] and 1.3<W<1.57 GeV with the CLAS detector |
| title_sort | electroproduction of pπ π p pi superscript pi superscript off protons at 0 2 q2 0 6 gev2 0 2 q superscript 2 0 6 gev superscript 2 and 1 3 w 1 57 gev with the clas detector |
| url | http://hdl.handle.net/1721.1/65188 |
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