期刊
CHINESE PHYSICS C
卷 33, 期 12, 页码 1210-1215出版社
IOP PUBLISHING LTD
DOI: 10.1088/1674-1137/33/12/025
关键词
nucleon resonances; electromagnetic form factors; nucleon structure
Recent results on nucleon resonance studies in pi(+)pi(-)p electro- production off protons with the CLAS detector are presented The analysis of CLAS data allowed us to determine all essential contributing mechanisms, providing it credible separation between resonant and non-resonant parts of the cross sections in a wide kinematical area of invariant masses of the final hadronic system 1.3 < W < 1 8 GeV and photon virtualities 0.2 < Q(2) < 1.5 GeV2 Electrocouplings of several excited proton states with masses less than 1.8 GeV were obtained for the first time from the analysis of pi(+)pi(-)p exclusive electroproduction channel
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