{"paper":{"title":"Measurement of Branching Fraction and First Evidence of CP Violation in B0 --> a1+-(1260) pi-+ Decays","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Bay, A. Bozek, A. Chen, A. Garmash, A. Ishikawa, A. J. Schwartz, A. M. Bakich, A. Moll, A. Sibidanov, A. Zupanc, B. Bhuyan, B. D. Yabsley, Belle Collaboration: J. Dalseno, B. G. Cheon, B. Kronenbitter, B. R. Ko, C. H. Wang, C. Kiesling, C. Liu, C. Ng, C. P. Shen, C. Schwanda, C. W. Park, D. M. Asner, D. Matvienko, D. Mohapatra, E. Nedelkovska, E. Solovieva, E. Won, F. Simon, G. B. Mohanty, G. Pakhlova, G. Tatishvili, G. Varner, H. Aihara, H. Hayashii, H. J. Hyun, H. K. Park, H. Miyata, H. O. Kim, H. Sahoo, I. Adachi, I.-S. Cho, J. B. Kim, J. E. Fast, J.-G. Shiu, J. H. Kang, J. Li, J. Libby, J. MacNaughton, K. Belous, K. Chilikin, K. Cho, K. Inami, K. Kinoshita, K. Miyabayashi, K. M. Williams, K. Nishimura, K. Prothmann, K. Senyo, K. Trabelsi, L. E. Piilonen, M. Bra\\v{c}ko, M. E. Sevior, M. Iwabuchi, M. Nakao, M. Petri\\v{c}, M. Prim, M. Ritter, M. R\\\"ohrken, M. Shapkin, M. Stari\\v{c}, M. Sumihama, M. Uchida, M. Watanabe, N. Gabyshev, N. Muramatsu, O. Brovchenko, O. Nitoh, O. Schneider, O. Seon, P. Chen, P. Kody\\v{s}, P. Kri\\v{z}an, P. Krokovny, P. Pakhlov, P. Smerkol, P. Urquijo, P. Vanhoefer, P. Wang, R. Chistov, R. Itoh, R. Louvot, R. Pestotnik, S. Eidelman, S.-H. Lee, S. Koblitz, S. Korpar, S. McOnie, S. Nishida, S. Ogawa, S. Okuno, S. Uehara, S. Uno, T.-A. Shibata, T. Aushev, T. E. Browder, T. Iijima, T. Iwashita, T. Julius, T. K. Pedlar, T. Kuhr, T. Kumita, T. Ohshima, T. Sanuki, T. Sumiyoshi, V. Aulchenko, V. Chekelian, V. Gaur, V. Shebalin, V. Zhilich, V. Zhulanov, W.-S. Hou, Y. B. Hsiung, Y. Choi, Y. Horii, Y. Hoshi, Y. Iwasaki, Y. J. Kim, Y.-J. Kwon, Y. M. Goh, Y. Miyazaki, Y. Sakai, Y.-S. Sohn, Y. Teramoto, Y. Unno, Y. Usov, Y. Watanabe, Y. Yamashita, Z. Dole\\v{z}al, Z. Dr\\'asal, Z. Natkaniec, Z. P. Zhang, Z. Q. Liu","submitted_at":"2012-05-27T10:59:43Z","abstract_excerpt":"We present a measurement of the branching fraction and time-dependent CP violation parameters in B0 --> a_1^+-(1260) pi^-+ decays. The results are obtained from the final data sample containing 772x10^6 BBbar pairs collected at the Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^+e^- collider. We also measure an upper limit on the product branching fraction for a possible decay with the same final state B0 --> a_2^+-(1320) pi^-+. In a time-dependent measurement to extract CP asymmetries, we find evidence of mixing-induced CP violation in B0 --> a_1^+-(1260) pi^-+ "},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.5957","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":""},"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"}