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Studies of N^* structure from the CLAS meson electroproduction data
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The transition \gamma_{v}pN^* amplitudes (electrocouplings) for prominent excited nucleon states obtained in a wide area of photon virtualities offer valuable information for the exploration of the N^* structure at different distances and allow us to access the complex dynamics of non-perturbative strong interaction. The current status in the studies of \gamma_{v}pN^* electrocouplings from the data on exclusive meson electroproduction off protons measured with the CLAS detector at Jefferson Lab is presented. The impact of these results on exploration of the N^* structure is discussed.
Forward citations
Cited by 2 Pith papers
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Insights into the $\mathbf{\gamma^{(*)} + N(940)\frac{1}{2}^+ \to \Delta(1700)\frac{3}{2}^{-}}$ transition
First SCI-DSE quark-diquark calculation of the gamma* N -> Delta(1700) transition form factors and helicity amplitudes, benchmarked against JLab and CLAS data.
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Low-$Q^2$ empirical parametrizations of the $N^\ast$ helicity amplitudes
Empirical helicity amplitude fits for nine nucleon and Delta resonances are modified near the pseudothreshold using a polynomial in the photon momentum matched at QP^2 = 0.1, 0.3, and 0.5 GeV^2.
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