{"paper":{"title":"A Cylindrical GEM Inner Tracker for the BESIII experiment at IHEP","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"physics.ins-det","authors_text":"A. Amoroso, A. Calcaterra, A. Cotta Ramusino, A. Rivetti, C. Leng, D. Bettoni, D. Jing, E. Fioravanti, E. Soldani, F. Bianchi, F. Cossio, F. De Mori, F. Evangelisti, G. Cibinetto, G. Felici, G. Mezzadri, G. Morello, H. Li, I. Garzia, J. Chai, J. Pellegrino, L. Fava, L. Lavezzi, L. Yang, M. Alexeev, M. Bertani, M. Destefanis, M. D. Rolo, M. Gatta, M. Greco, M. Maggiora, M. Melchiorri, M. Savrie, M. Scodeggio, N. Canale, P. Patteri, R. Farinelli, R. Malaguti, S. Cerioni, S. Chiozzi, S. Marcello, S. Pacetti, S. Sosio, S. Spataro, T. Edisher, V. Carassiti","submitted_at":"2018-07-02T07:34:07Z","abstract_excerpt":"The Beijing Electron Spectrometer III (BESIII) is a multipurpose detector that collects data provided by the collision in the Beijing Electron Positron Collider II (BEPCII), hosted at the Institute of High Energy Physics of Beijing. Since the beginning of its operation, BESIII has collected the world largest sample of J/{\\psi} and {\\psi}(2s). Due to the increase of the luminosity up to its nominal value of 10^33 cm-2 s-1 and aging effect, the MDC decreases its efficiency in the first layers up to 35% with respect to the value in 2014. Since BESIII has to take data up to 2022 with the chance to"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1807.00500","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":""},"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"}