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DOE OSTI · 1708834

Two Pion Photo- and Electroproduction with CLAS

Mokeev, Victor I.·al., et
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Abstract

Exclusive π + π - p photo- and electroproduction data from CLAS have considerably extended the information on the spectrum and structure of nucleon resonances. The data from the π + π - p and Nπ channels have provided results on the electrocouplings of most resonances in the mass region up to 1.8 GeV and at photon virtualities up to 5.0 GeV 2 . The recent CLAS data on π + π - p photoproduction have improved knowledge on the photocouplings of nucleon resonances in the mass range of 1.6 GeV < M N* < 2.0 GeV and on their decays to the πΔ and ρp final hadron states. Analyses of the combined π+π-p photo- and electroproduction data have revealed evidence for the candidate-state N’(1720)3/2 + . The new results on the nucleon resonance spectrum, electroexcitation amplitudes from analysis of the CLAS π + π - p photo- and electroproduction data, and their impact on the exploration of strong QCD are presented.

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS

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Mokeev, Victor I., al., et. 2020-09-22. Two Pion Photo- and Electroproduction with CLAS. https://doi.org/10.1051/epjconf%2F202024103003

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