{"paper":{"title":"Search for CP violation in tau -> K^0_S pi nu_tau decays at Belle","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Bozek, A. Drutskoy, A. Ishikawa, A. M. Bakich, A. Moll, A. Vinokurova, A. Vossen, B. G. Cheon, B. Golob, B. R. Ko, B. Shwartz, C.-C. Chiang, C. H. Wang, C. Kiesling, C. Liu, C. Schwanda, C. Z. Yuan, D. Epifanov, E. Barberio, E. Nakano, E. Won, F. Simon, G. B. Mohanty, G. Pakhlova, G. Varner, H. Aihara, H. Ha, H. Hayashii, H. J. Hyun, H. Kawai, H. K. Park, H. Miyata, H. Nakazawa, H. O. Kim, H. Park, H. Sahoo, H. Yamamoto, I.-S. Cho, J.-G. Shiu, J. Haba, J. H. Kang, J. Li, J. MacNaughton, J. S. Lange, K. Adamczyk, K. Belous, K. Cho, K. Hayasaka, K. Inami, K. Kinoshita, K. Miyabayashi, K. Nishimura, K. Senyo, K. Trabelsi, L. E. Piilonen, M. Bischofberger, M. Bracko, M. Danilov, M. Iwabuchi, M. J. Kim, M. J. Lee, M. Nakao, M. Petric, M. R\\\"ohrken, M. Shapkin, M. Staric, M. Watanabe, O. Nitoh, O. Schneider, P. Chen, P. Kodys, P. Krizan, P. Smerkol, P. Wang, P. Zhou, R. Itoh, R. Louvot, R. Mizuk, S. Eidelman, S.-H. Kyeong, S.-H. Lee, S. McOnie, S. Nishida, S. Okuno, S. Ryu, S. Stanic, S. Uehara, S. Uno, T. E. Browder, T. Julius, T. Kawasaki, T. Mori, T. Ohshima, T. Sumiyoshi, T. Uglov, T. Zivko (The Belle Collaboration), V. Aulchenko, V. Balagura, V. Zhulanov, W.-S. Hou, Y. B. Hsiung, Y. Choi, Y. Horii, Y. Hoshi, Y. Iwasaki, Y. J. Kim, Y.-J. Kwon, Y. Li, Y. Miyazaki, Y. Nagasaka, Y. Sakai, Y.-S. Sohn, Y. Teramoto, Y. Watanabe, Y. Yamashita, Z. Dolezal","submitted_at":"2011-01-01T15:48:43Z","abstract_excerpt":"We report on a search for CP violation in tau -> K^0_S pi nu_tau decays using a data sample of 699 fb^{-1} collected in the Belle experiment at the KEKB electron-positron asymmetric-energy collider. The CP asymmetry is measured in four bins of the invariant mass of the K^0_S pi system and found to be compatible with zero with a precision of O(10^{-3}) in each mass bin. Limits for the CP violation parameter Im(eta_S) are given at a 90 % confidence level. These limits are |Im(eta_S)|<0.026 or better, depending on the parameterization used to describe the hadronic form factors and improve upon pr"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1101.0349","kind":"arxiv","version":3},"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"}