{"paper":{"title":"Measurement of R = sigma_L / sigma_T and the Separated Longitudinal and Transverse Structure Functions in the Nucleon Resonance Region","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Ahmidouch, A. Bruell, A. Cochran, A. Gasparian, A. J. Sarty, A. Lung, A. Nathan, A. Uzzle, B. A. Mueller, B. Fox, B. Zihlmann, C. E. Keppel, C. S. Armstrong, C. Smith, C. W. Bochna, D. B. Day, D. Dutta, D. F. Geesaman, D. Gaskell, D. H. Beck, D. J. Mack, D. McKee, D. Meekins, D. Potterveld, D. S. Brown, E. C. Schulte, E. Kinney, E. Rollinde, E. Segbefia, F. Xiong, G. Niculescu, H. Breuer, H. C. Fenker, H. Gao, H. Mkrtchyan, H. P. Blok, I. Niculescu, J. Arrington, J. Cha, J. Dunne, J. H. Mitchell, J. Reinhold, J. W. Martin, K. Garrow, K. McIlhany, L. Cole, L. Gan, L. Tang, L. Yuan, M. A. Miller, M. Bouwhuis, M.E. Christy, M. Harvey, M. Jones, M. Zeier, N. S. Chant, O. K. Baker, O. Rondon, P. Bosted, P. L. J. Gu`eye, P. Markowitz, P. Roos, R. Asaturyan, R. B. Piercey, R. D. Carlini, R. D. Ransome, R. Ent, R. Gilman, R. G. Milner, R. J. Holt, R. Sawafta, R. Tieulent, S. Avery, S. A. Wood, S. Danagoulian, S.F. Pate, S. Stepanyan, S. Strauch, T. G. O'Neill, The Jefferson Lab Hall C E94-110 Collaboration: Y. Liang, V. Papavassiliou, V. Tadevosyan, V. Tvaskis, V. Ziskin, W. Boeglin, W. F. Vulcan, W. Lorenzon, X. Jiang","submitted_at":"2004-10-19T03:43:13Z","abstract_excerpt":"We report on a detailed study of longitudinal strength in the nucleon resonance region, presenting new results from inclusive electron-proton cross sections measured at Jefferson Lab Hall C in the four-momentum transfer range 0.2 < Q^2 < 5.5 GeV^2. The data have been used to accurately perform 167 Rosenbluth-type longitudinal / transverse separations. The precision R = sigma_L / sigma_T data are presented here, along with the first separate values of the inelastic structure functions F_1 and F_L in this regime. The resonance longitudinal component is found to be significant, both in magnitude "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0410027","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":""},"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"}