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Nucleon resonance contributions to unpolarised inclusive electron scattering

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arxiv 1904.08016 v1 pith:HO2YRFN5 submitted 2019-04-16 hep-ph nucl-th

A. N. Hiller Blin , V. Mokeev , M. Albaladejo , C. Fernández-Ramírez , V. Mathieu , A. Pilloni , A.Szczepaniak , V. D. Burkert
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V. V. Chesnokov A. A. Golubenko M. Vanderhaeghen
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classification hep-phnucl-th
keywords contributionsdataelectroninclusivenucleonresonanceresonantscattering
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abstract

The first CLAS12 experiments will provide high-precision data on inclusive electron scattering observables at a photon virtuality $Q^2$ ranging from 0.05 GeV$^2$ to 12 GeV$^2$ and center-of-mass energies $W$ up to 4 GeV. In view of this endeavour, we present the modeling of the resonant contributions to the inclusive electron scattering observables. As input, we use the existing CLAS electrocoupling results obtained from exclusive meson electroproduction data off protons, and evaluate for the first time the resonant contributions based on the experimental results on the nucleon resonance electroexcitation. The uncertainties are given by the data and duly propagated through a Monte Carlo approach. In this way, we obtain estimates for the resonant contributions, important for insight into the nucleon parton distributions in the resonance region and for the studies of quark-hadron duality.

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Cited by 3 Pith papers

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  1. Low-$Q^2$ empirical parametrizations of the $N^\ast$ helicity amplitudes

    hep-ph 2019-08 conditional novelty 5.0 of 10

    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.

  2. Electroexcitation of Nucleon Resonances and the Emergence of Hadron Mass

    hep-ph 2025-05 conditional novelty 2.0 of 10

    A review argues that Jefferson Lab electroproduction data on nucleon resonances, analyzed with continuum Schwinger methods, confirm a momentum-dependent dressed quark mass, the essence of emergent hadron mass.

  3. Nucleon-to-Resonance Form Factors at Large Photon Virtualities

    nucl-th 2019-08 conditional novelty 2.0 of 10

    A quark-diquark Faddeev model with QCD-kindred momentum dependence reproduces high-Q2 nucleon-to-resonance transition form factors and predicts Delta(1600) electroproduction form factors of definite sign over 0<Q2<=6m_N^2.

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