{"paper":{"title":"Characterisation of the Bedretto Underground Site for Fundamental Physics Experiments","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":["hep-ex"],"primary_cat":"astro-ph.IM","authors_text":"Abigail Flowers, Alexander Kavner, Aravind Sreekala, Ben Kilminster, Bj\\\"orn Penning, Boris Korzh, Chiara Capelli, Christian Regenfus, Domenico Giardini, Evangelos-Leonidas Gkougkousis, Federico Sanchez, Florian J\\\"org, Francesco Piastra, Francesco Riva, Frederick Massin, Guandi Zhao, Harvey Birch, Johannes W\\\"uthrich, John Clinton, Jose Cuenca Garc\\'ia, Knut Dundas Mor{\\aa}, Laura Baudis, Luisa H\\\"otzsch, Marcelle Soares-Santos, Margherita Noia, Marian Hertrich, Mathilde Wimez, Michele Weber, Nicolas Angelides, Paolo Crivelli, Philippe Jetzer, Rebecca Hochreutener, Serhan Tufanli, Stefan Wiemer, Steven Schramm, Yacine Haddad","submitted_at":"2025-12-16T19:00:01Z","abstract_excerpt":"Underground laboratories provide the ultra-low background and low-vibration environments essential for rare-event searches, gravitational-wave detection, and quantum-sensing technologies. We report a comprehensive environmental characterisation of the Bedretto tunnel in Ticino, Switzerland, a site offering horizontal access, excellent infrastructure, and the potential to be be Europe's second-deepest and quietest underground laboratory. At the prospective physics site, located beneath an overburden exceeding 1400 m, we measure the cosmic-muon, gamma-ray, and neutron fluxes, as well as the rado"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2512.14815","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2512.14815/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"}