Fedotov, G. V., Skorodumina, Iu A., Burkert, V. D. et al. (48 more authors) (2018) Measurements of the γvp→p′π+π- cross section with the CLAS detector for 0.4 GeV2<Q2<1.0 GeV2 and 1.3 GeV<W<1.825 GeV. Physical Review C. 025203. ISSN 2469-9993
Abstract
New results on the single-differential and fully integrated cross sections for the process γvp→p′π+π- are presented. The experimental data were collected with the CLAS detector at Jefferson Laboratory. Measurements were carried out in the kinematic region of the reaction invariant mass W from 1.3 to 1.825 GeV and the photon virtuality Q2 from 0.4 to 1.0 GeV2. The cross sections were obtained in narrow Q2 bins (0.05 GeV2) with the smallest statistical uncertainties achieved in double-pion electroproduction experiments to date. The results were found to be in agreement with previously available data where they overlap. A preliminary interpretation of the extracted cross sections, which was based on a phenomenological meson-baryon reaction model, revealed substantial relative contributions from nucleon resonances. The data offer promising prospects to improve knowledge on the Q2 evolution of the electrocouplings of most resonances with masses up to ∼1.8 GeV.
Metadata
Item Type: | Article |
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Authors/Creators: |
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Copyright, Publisher and Additional Information: | ©2018 American Physical Society |
Dates: |
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Institution: | The University of York |
Academic Units: | The University of York > Faculty of Sciences (York) > Physics (York) The University of York > Faculty of Sciences (York) > Health Sciences (York) The University of York > Faculty of Arts and Humanities (York) > Music (York) The University of York > Faculty of Social Sciences (York) > Economics and Related Studies (York) The University of York > Faculty of Sciences (York) > Electronic Engineering (York) The University of York > Faculty of Social Sciences (York) > Politics (York) The University of York > Faculty of Sciences (York) > Mathematics (York) |
Depositing User: | Pure (York) |
Date Deposited: | 17 Sep 2018 11:10 |
Last Modified: | 16 Oct 2024 15:04 |
Published Version: | https://doi.org/10.1103/PhysRevC.98.025203 |
Status: | Published |
Refereed: | Yes |
Identification Number: | 10.1103/PhysRevC.98.025203 |
Related URLs: | |
Open Archives Initiative ID (OAI ID): | oai:eprints.whiterose.ac.uk:135799 |