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Title: Measurements of e p e ' π + π p ' cross sections with CLAS at 1.40 GeV < W < 2.0 GeV and 2.0 GeV 2 < Q 2 < 5.0 GeV 2

Journal Article · · Physical Review C
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This study reports new exclusive cross sections for ep→e'π+πp' using the CLAS detector at Jefferson Laboratory. These results are presented for the first time at photon virtualities 2.0 GeV2 < Q2 < 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 Q2. These data considerably extend the kinematic reach of previous measurements. Exclusive ep→e'π+πp' cross section measurements are of particular importance for the extraction of resonance electrocouplings in the mass range above 1.6 GeV.

Research Organization:
George Washington Univ., Washington, DC (United States); Mississippi State Univ., Starkville, MS (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
CLAS Collaboration
Grant/Contract Number:
SC0016583; AC05-06OR23177; FG02-07ER41528
OSTI ID:
1439888
Alternate ID(s):
OSTI ID: 1376951; OSTI ID: 1604457
Report Number(s):
JLAB-PHY-17-2453; PRVCAN
Journal Information:
Physical Review C, Vol. 96, Issue 2; ISSN 2469-9985
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 34 works
Citation information provided by
Web of Science

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Cited By (2)