{"paper":{"title":"Evidence for the Suppressed Decay B- -> DK-, D -> K+pi-","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Bozek, A. Chen, A. Garmash, A. Ishikawa, A. J. Schwartz, A. Matyja, A. Moll, A. Poluektov, A. Vinokurova, A. Vossen, A. Zupanc, B. Bhuyan, B. D. Yabsley, Belle Collaboration: Y. Horii, B. G. Cheon, B. Golob, B. R. Ko, C.-C. Chiang, C. H. Wang, C. Kiesling, C. Liu, C. P. Shen, C. Schwanda, C. W. Park, D. Liventsev, D. Zander, E. Barberio, E. Nakano, E. Solovieva, E. Won, F. Simon, G. B. Mohanty, G. Pakhlova, G. Varner, H. Aihara, H. Ha, H. J. Hyun, H. J. Kim, H. Kichimi, H. K. Park, H. Miyata, H. Nakazawa, H. O. Kim, H. Sahoo, H. Yamamoto, I. Adachi, I.-S. Cho, J.-G. Shiu, J. Haba, J. H. Kang, J. Li, J. Wicht, K. Arinstein, K. Belous, K. Cho, K. Hayasaka, K. Inami, K. Kinoshita, K. Miyabayashi, K. Prothmann, K. Senyo, K. Trabelsi, L. E. Piilonen, M. Bischofberger, M. Bracko, M.-C. Chang, M. E. Sevior, M. Feindt, M. Iwabuchi, M. J. Kim, M. J. Lee, M. Petric, M. Prim, M. R\\\"ohrken, M. Shapkin, M. Staric, M. Sumihama, M. Uchida, M. Watanabe, N. Gabyshev, N. J. Joshi, N. Kobayashi, N. Muramatsu, O. Nitoh, O. Schneider, O. Seon, P. Chang, P. Chen, P. Krizan, P. Pakhlov, P. Smerkol, P. Wang, R. Itoh, R. Kumar, R. Louvot, R. Pestotnik, S. Eidelman, S.-H. Lee, S. Korpar, S. McOnie, S. Neubauer, S. Nishida, S. Okuno, S. Ryu, S. Stanic, S. Suzuki, S. Tanaka, S. Uehara, S. Uno, T.-A. Shibata, T. Aushev, T. E. Browder, T. Iijima, T. Iwashita, T. Julius, T. Kawasaki, T. Kuhr, T. Mori, T. Ohshima, T. Sumiyoshi, T. Uglov, V. Aulchenko, V. Balagura, V. Gaur, V. Shebalin, V. Zhulanov, W.-S. Hou, Y. B. Hsiung, Y. Choi, Y. Hoshi, Y. Iwasaki, Y. J. Kim, Y.-J. Kwon, Y. Miyazaki, Y. Onuki, Y. Sakai, Y.-S. Sohn, Y. Teramoto, Y. Unno, Y. Usov, Y. Watanabe, Y. Yamashita, Z. Dolezal, Z. Natkaniec, Z. P. Zhang","submitted_at":"2011-03-30T14:55:20Z","abstract_excerpt":"The suppressed decay chain B- -> DK-, D -> K+pi-, where D indicates a anti-D0 or D0 state, provides important information on the CP-violating angle phi_3. We measure the ratio R_{DK} of the decay rates to the favored mode B- -> DK-, D -> K-pi+ to be R_{DK} = [1.63^{+0.44}_{-0.41}(stat)^{+0.07}_{-0.13}(syst)] x 10^{-2}, which indicates the first evidence of the signal with a significance of 4.1sigma. We also measure the asymmetry A_{DK} between the charge-conjugate decays to be A_{DK} = -0.39^{+0.26}_{-0.28}(stat)^{+0.04}_{-0.03}(syst). The results are based on the full 772 x 10^6 B anti-B pair"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1103.5951","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"}