Measurements of {ital ep} {rightarrow} {ital e}'{pi}{sup +}{pi}{sup -}{ital p}' Cross Sections with CLAS at 1.40 GeV &lt; {ital W} &lt; 2.0 GeV and 2.0 GeV{sup 2} &lt; {ital Q}{sup 2} &lt; 5.0 GeV{sup 2}

Isupov, E. L.; Burkert, V.; Carman, D. S.; Gothe, R. W.; Hicks, K.; Ishkhanov, B. S.; Mokeev, V. I.; Adhikari, K. P.; Adhikari, Shankar; Adikaram, D.; Hafidi, K.; Hattawy, M.

doi:10.1103/PhysRevC.96.025209

Measurements of {ital ep} {rightarrow} {ital e}'{pi}{sup +}{pi}{sup -}{ital p}' Cross Sections with CLAS at 1.40 GeV < {ital W} < 2.0 GeV and 2.0 GeV{sup 2} < {ital Q}{sup 2} < 5.0 GeV{sup 2}

Journal Article · Thu Aug 24 04:00:00 EDT 2017 · Physical Review C, Nuclear Physics

DOI:https://doi.org/10.1103/PhysRevC.96.025209· OSTI ID:1420063

Isupov, E. L.; Burkert, V.; Carman, D. S.; Gothe, R. W.; Hicks, K.; Ishkhanov, B. S.; Mokeev, V. I.; Adhikari, K. P.; Adhikari, Shankar; Adikaram, D.; Hafidi, K.; Hattawy, M.

This paper reports new exclusive cross sections for ep -> e' pi(+) pi(-) p' using the CLAS detector at Jefferson Laboratory. These results are presented for the first time at photon virtualities 2.0 GeV2 < Q(2) < 5.0 GeV2 in the center-of-mass energy range 1.4 GeV < W < 2.0 GeV, which covers a large part of the nucleon resonance region. Using a model developed for the phenomenological analysis of electroproduction data, we see strong indications that the relative contributions from the resonant cross sections at W < 1.74 GeV increase with Q(2). These data considerably extend the kinematic reach of previous measurements. Exclusive ep -> e' pi(+) pi(-) p' cross section measurements are of particular importance for the extraction of resonance electrocouplings in the mass range above 1.6 GeV

Research Organization:: Argonne National Laboratory (ANL), Argonne, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Science Foundation (NSF); Commissariat a l’Energie Atomique (CEA); Centre National de la Recherche Scientifique (CNRS); Instituto Nazionale di Fisica Nucleare (INFN); National Research Foundation (NRF) of Korea

DOE Contract Number:: AC02-06CH11357

OSTI ID:: 1420063

Journal Information:: Physical Review C, Nuclear Physics, Journal Name: Physical Review C, Nuclear Physics Journal Issue: 2 Vol. 96; ISSN 0556-2813

Publisher:: American Physical Society (APS)

Country of Publication:: United States

Language:: English

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Spectrum and structure of octet and decuplet baryons and their positive-parity excitations Chen, Chen; Krein, Gastão; Roberts, Craig D. Physical Review D, Vol. 100, Issue 5 https://doi.org/10.1103/physrevd.100.054009	journal	September 2019
Measurements of the γ v p → p ′ π + π − cross section with the CLAS detector for 0.4 GeV 2 < Q 2 < 1.0 GeV 2 and 1.3 GeV < W < 1.825 GeV Fedotov, G. V.; Skorodumina, Iu. A.; Burkert, V. D. Physical Review C, Vol. 98, Issue 2 https://doi.org/10.1103/physrevc.98.025203	journal	August 2018
Exclusive π 0 p electroproduction off protons in the resonance region at photon virtualities 0.4 GeV 2 ≤ Q 2 ≤ 1 GeV 2 Markov, N.; Joo, K.; Burkert, V. D. Physical Review C, Vol. 101, Issue 1 https://doi.org/10.1103/physrevc.101.015208	journal	January 2020
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