{"paper":{"title":"Determination of the Charged Pion Form Factor at Q2=1.60 and 2.45 (GeV/c)2","license":"","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"A. Matsumura, A. Sarty, B. Barrett, C.C. Chang, C.E. Keppel, C. Perdrisat, C. Xu, D. Gaskell, D.J. Mack, D.J. Margaziotis, D. Meekins, D. Potterveld, E. Gibson, E.J. Beise, E.J. Brash, Fpi2 collaboration: T. Horn, G.J. Lolos, G.M. Huber, G.R. Smith, G. Warren, H. Breuer, H. Mkrtchyan, H.P. Blok, I. Niculescu, J. Arrington, J. Liu, J. Reinhold, J. Roche, J. Volmer, K. Aniol, L.G. Tang, L. Pentchev, M.E. Christy, M.K. Jones, P.G. Roos, P. Markowitz, P.M. King, P. Reimer, R. Ent, R.J. Holt, S.A. Wood, S. Jin, S. Vidakovic, T. Miyoshi, V. Kovaltchouk, V. Punjabi, V. Tadevosyan, V. Tvaskis, W. Boeglin, W. Kim, W. Vulcan, X. Zheng, Y. Okayasu","submitted_at":"2006-07-07T18:44:15Z","abstract_excerpt":"The H(e,e'pi+)n cross section was measured at four-momentum transfers of Q2=1.60 and 2.45 GeV2 at an invariant mass of the photon nucleon system of W=2.22 GeV. The charged pion form factor (F_pi) was extracted from the data by comparing the separated longitudinal pion electroproduction cross section to a Regge model prediction in which F_pi is a free parameter. The results indicate that the pion form factor deviates from the charge-radius constrained monopole form at these values of Q2 by one sigma, but is still far from its perturbative Quantum Chromo-Dynamics prediction."},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"nucl-ex/0607005","kind":"arxiv","version":1},"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/nucl-ex/0607005/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"}