{"paper":{"title":"Silica aerogel radiator for use in the A-RICH system utilized in the Belle II experiment","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ex","nucl-ex"],"primary_cat":"physics.ins-det","authors_text":"Andrej Seljak, Elvedin Tahirovi\\'c, Hidekazu Kakuno, Hideyuki Kawai, Ichiro Adachi, Keisuke Yoshida, Koji Hara, Luka \\v{S}antelj, Makoto Tabata, Nao Hamada, Peter Kri\\v{z}an, Rok Pestotnik, Samo Korpar, Satoru Ogawa, Shohei Nishida, Shuichi Iwata, Takayuki Sumiyoshi, Tetsuro Kumita, Toru Iijima, Yosuke Yusa","submitted_at":"2014-06-18T01:01:06Z","abstract_excerpt":"This paper presents recent progress in the development and mass production of large-area hydrophobic silica aerogels for use as radiators in the aerogel-based ring-imaging Cherenkov (A-RICH) counter, which will be installed in the forward end cap of the Belle II detector. The proximity-focusing A-RICH system is especially designed to identify charged kaons and pions. The refractive index of the installed aerogel Cherenkov radiators is approximately 1.05, and we aim for a separation capability exceeding 4$\\sigma $ at momenta up to 4 GeV/$c$. Large-area aerogel tiles (over 18 $\\times $ 18 $\\time"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.4564","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"}