Publications
Publication Information
| Title | Resonant contributions to inclusive nucleon structure functions from exclusive meson electroproduction data |
| Authors | Astrid Hiller Blin, Wolodymyr Melnitchouk, Viktor Mokeev, Volker Burkert, Vitaly Chesnokov, Alessandro Pilloni, Adam Szczepaniak |
| JLAB number | JLAB-THY-21-3369 |
| LANL number | arXiv:2105.05834 |
| Other number | DOE/OR/23177-5188 |
| Document Type(s) | (Journal Article) |
| Associated with EIC: | No |
| Supported by Jefferson Lab LDRD Funding: | No |
| Funding Source: | High Energy Physics (HEP) |
|
Journal Compiled for Physical Review C Volume 104 Page(s) 025201 Refereed | |
| Publication Abstract: | Nucleon resonance contributions to the inclusive proton $F_2$ and $F_L$ structure functions are computed from resonance electroexcitation amplitudes in the mass range up to 1.75~GeV extracted from CLAS exclusive meson electroproduction data. Taking into account for the first time quantum interference effects, the resonance contributions are compared with inclusive proton structure functions evaluated from $(e,e'X)$ cross section data and the longitudinal to transverse cross section ratio. Contributions from isospin-1/2 and 3/2 resonances remain substantial over the entire range of photon virtualities $Q^2 \lesssim 4$~GeV$^2$, where their electroexcitation amplitudes have been obtained, and their $Q^2$ evolution displays pronounced differences in the first, second and third resonance regions. We compare the structure functions in the resonance region with those computed from parton distributions fitted to deep-inelastic scattering data, and extrapolated to the resonance region, providing new quantitative assessments of quark-hadron duality in inclusive electron-proton scattering. |
| Experiment Numbers: | other |
| Group: | THEORY CENTER |
| Document: | |
| DOI: | https://doi.org/10.1103/PhysRevC.104.025201 |
| Accepted Manuscript: | PhysRevC.104.025201.pdf |
| Supporting Documents: | |
| Supporting Datasets: | |