{"paper":{"title":"A Search for the LHCb Charmed 'Pentaquark' using Photo-Production of $J/{\\psi}$ at Threshold in Hall C at Jefferson Lab","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["nucl-ex"],"primary_cat":"hep-ex","authors_text":"A. Asaturyan, A. Zafar, B. Duran, C. Gu, C. Peng, D. Bhetuwal, D. Dutta, D. Higinbotham, D. Meekins, E. Chudakov, E. Pooser, F. R. Wesselmann, F. Zhao, G. M. Huber, H. Atac, H. Bhatt, H. Choi, H. Gao, H. Go, H. Mkrtchyan, J. Arrington, J. Dunne, J. Ha, J.-P. Chen, K. Adhikari, K. Aniol, K. Hafidi, L. El-Fassi, L. Pentchev, L. Ye, M. Diefenthaler, M. Hattawy, M. Jones, M. Paolone, M. Rehfuss, N. Sparveris, O. Hansen, P. Markowitz, Q. Fu, R. Dupr\\'e, R. Nouicer, R. Wang, S. Bae, S. Choi, S. Joosten, S. Wood, S. Zhamkochyana, T. Liu, V. Tadevosyan, W. Armstrong, W. Li, W. Xiong, X. Chen, X. Li, X. Yan, Y. Zhang, Z.-E. Meziani, Z. Ye, Z. Zhao","submitted_at":"2016-09-02T17:37:12Z","abstract_excerpt":"We propose to measure the photo-production cross section of $J/{\\psi}$ near threshold, in search of the recently observed LHCb hidden-charm resonances $P_c$(4380) and $P_c$(4450) consistent with 'pentaquarks'. The observation of these resonances in photo-production will provide strong evidence of the true resonance nature of the LHCb states, distinguishing them from kinematic enhancements. A bremsstrahlung photon beam produced with an 11 GeV electron beam at CEBAF covers the energy range of $J/{\\psi}$ production from the threshold photo-production energy of 8.2 GeV, to an energy beyond the pre"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1609.00676","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"}