{"paper":{"title":"Three- and four-nucleon absorption processes observed in the $K^-$-$^4$He reaction at rest","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"nucl-ex","authors_text":"D. Tomono, E. Widmann, H. Bhang, H. Ohnishi, H. Outa, H. Yim, J. Chiba, J.H. Kim, K. Itahashi, M. Iio, M. Iwai, M. Iwasaki, M. Sato, P. Kienle, R.S. Hayano, S. Choi, S. Ishimoto, S. Okada, S. Suzuki, T. Hanaki, T. Ishikawa, T. Ishiwatari, T.Suzuki, T. Yamazaki, Y. Fukuda, Y. Matsuda","submitted_at":"2010-09-26T11:18:55Z","abstract_excerpt":"Correlations of back-to-back coincident $\\Lambda d$ and $\\Lambda t$ pairs from the stopped $K^-$ reaction on $^4$He had been investigated, thereby $\\Lambda d$ and $\\Lambda t$ branches of non-mesonic three- and four-nucleon absorption processes of antikaon at rest were identified as well-separable processes, respectively. The branching ratio of the three-nucleon process, ($^4$He-$K^-$)$_{atomic} \\rightarrow \\Lambda d \"n\"$, is estimated to be $(0.9 \\pm 0.1 (stat) \\pm 0.2 (syst)) \\times 10^{-3}$ from the normalized $\\Lambda d$ spectrum in a $\\Lambda d n$ final state, while the fraction of the fou"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1009.5082","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"}