{"paper":{"title":"Virtual Compton Scattering measurements in the nucleon resonance region","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Blomberg, A. Esser, A. Polychronopoulou, A. Weber, B. Pasquini, C. Sfienti, D. Flay, F. Schulz, H. Atac, H. Fonvieille, H. Merkel, I. Fri\\v{s}\\v{c}i\\'c, J. Beri\\v{c}i\\v{c}, J. Pochodzalla, L. Correa, M. Benali, M. Mihovilovic, M.O. Distler, M. Paolone, M. Schoth, N. Sparveris, P. Achenbach, R. B\\\"ohm, S. Schlimme, S. Sirca, U. M\\\"uller, Y. Kohl, Z. E. Meziani","submitted_at":"2019-01-25T16:13:54Z","abstract_excerpt":"We report on new measurements of the electric Generalized Polarizability (GP) of the proton $\\alpha_E$ in a kinematic region where a puzzling dependence on momentum transfer has been observed, and we have found that $\\alpha_E = (5.3 \\pm 0.6_{stat} \\pm 1.3_{sys})~10^{-4} fm^3$ at $Q^2=0.20~(GeV/c)^2$. The new measurements, when considered along with the rest of the world data, suggest that $\\alpha_E$ can be described by either a local plateau or by an enhancement in the region $Q^2=0.20~(GeV/c)^2$ to $0.33~(GeV/c)^2$. The experiment also provides the first measurement of the Coulomb quadrupole "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1901.08951","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/1901.08951/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}