{"paper":{"title":"Testing the Pauli Exclusion Principle for electrons at LNGS","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["physics.ins-det"],"primary_cat":"quant-ph","authors_text":"A. Clozza, A. d'Uffizi, A.M. Bragadireanu, A. Romero Vidal, A. Scordo, C. Berucci, C. Curceanu, C. Guaraldo, D.L. Sirghi, D. Pietreanu, E. Milotti, E. Sbardella, E. Widmann, F. Sirghi, H. Shi, J. Marton, J.-P. Egger, J. Zmeskal, K. Piscicchia, L. De Paolis, L. Sperandio, M. Cargnelli, M. Iliescu, M. Laubenstein, O. Vazquez Doce, S. Bartalucci, S. Bertolucci, S. Di Matteo, T. Ishiwatari, T. Ponta","submitted_at":"2014-05-07T15:08:17Z","abstract_excerpt":"High-precision experiments have been done to test the Pauli exclusion principle (PEP) for electrons by searching for anomalous $K$-series X-rays from a Cu target supplied with electric current. With the highest sensitivity, the VIP (VIolation of Pauli Exclusion Principle) experiment set an upper limit at the level of $10^{-29}$ for the probability that an external electron captured by a Cu atom can make the transition from the 2$p$ state to a 1$s$ state already occupied by two electrons. In a follow-up experiment at Gran Sasso, we aim to increase the sensitivity by two orders of magnitude. We "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1405.1634","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"}