Recent results on nucleon resonance electrocouplings from the studies of $\pi^{+}\pi^{-}p$ electroproduction with the CLAS detector

V. I. Mokeev; V. D. Burkert; G. V. Fedotov; E. N. Golovach; B. S. Ishkhanov

doi:10.1088/1674-1137/33/12/025

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arXiv · 0906.4081

Recent results on nucleon resonance electrocouplings from the studies of $\pi^{+}\pi^{-}p$ electroproduction with the CLAS detector

V. I. Mokeev·V. D. Burkert·G. V. Fedotov·E. N. Golovach·B. S. Ishkhanov

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Abstract

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 a 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 $0.2<Q^{2}<1.5$ $GeV^2$. 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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V. I. Mokeev, V. D. Burkert, G. V. Fedotov, E. N. Golovach, B. S. Ishkhanov. 2009-06-22. Recent results on nucleon resonance electrocouplings from the studies of $\pi^{+}\pi^{-}p$ electroproduction with the CLAS detector. https://doi.org/10.1088/1674-1137/33/12/025

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