{"paper":{"title":"First observation of exclusive $\\Upsilon(1S)$ and $\\Upsilon(2S)$ decays into light hadrons","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":["hep-ph"],"primary_cat":"hep-ex","authors_text":"A. Bay, A. Bozek, A. Chen, A. Ishikawa, A. Kuzmin, A. M. Bakich, A. Moll, A. Sibidanov, A. Sokolov, A. Zupanc, B. Bhuyan, B. D. Yabsley, Belle Collaboration: C. P. Shen, B. G. Cheon, B. Golob, B. H. Kim, B. R. Ko, B. Shwartz, C. C. Zhang, C. H. Wang, C. Kiesling, C. Liu, C. Schwanda, C. W. Park, C. Z. Yuan, D. M. Asner, D. Mohapatra, D. Santel, E. Nakano, E. Solovieva, E. Won, F. Simon, G. B. Mohanty, G. Bonvicini, G. Pakhlova, G. Tatishvili, G. Varner, H. Aihara, H. Hayashii, H. J. Hyun, H. K. Park, H. Miyata, H. O. Kim, H. Park, H. Sahoo, I. Adachi, I.-S. Cho, J. B. Kim, J. Dalseno, J. E. Fast, J.-G. Shiu, J. Haba, J. H. Kang, J. H. Kim, J. Li, J. Libby, K. Belous, K. Chilikin, K. Cho, K. Inami, K. Kinoshita, K. Miyabayashi, K. M. Williams, K. Nishimura, K. Senyo, L. E. Piilonen, M. Bischofberger, M. Bra\\v{c}ko, M.-C. Chang, M. E. Sevior, M. Iwabuchi, M. J. Kim, M. Nakao, M. Petri\\v{c}, M. Ritter, M. Shapkin, M. Stari\\v{c}, M. Sumihama, M. Uchida, M. Watanabe, N. Gabyshev, N. Muramatsu, O. Nitoh, O. Schneider, O. Seon, P. Chang, 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. Kumar, R. Louvot, R. Pestotnik, R. T. Kouzes, S. Eidelman, S.-H. Lee, S.-K. Choi, S. Koblitz, S. Korpar, S. L. Olsen, 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. Kawasaki, T. K. Pedlar, T. Kumita, T. Ohshima, T. Sanuki, T. Sumiyoshi, T. Uglov, V. Gaur, V. Shebalin, V. Zhilich, V. Zhulanov, W.-S. Hou, X. L. Wang, Y. B. Hsiung, Y. Choi, Y. Horii, Y. Hoshi, Y. Iwasaki, Y. J. Kim, Y.-J. Kwon, Y. Li, Y. Liu, Y. M. Goh, Y. Sakai, Y. Sato, 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":"2012-05-06T20:44:17Z","abstract_excerpt":"Using samples of 102 million $\\Upsilon(1S)$ and 158 million $\\Upsilon(2S)$ events collected with the Belle detector, we study exclusive hadronic decays of these two bottomonium resonances to the three-body final states $\\phi K^+ K^-$, $\\omega \\pi^+ \\pi^-$ and $K^{\\ast 0}(892) K^- \\pi^+ $, and to the two-body Vector-Tensor ($\\phi f_2'(1525)$, $\\omega f_2(1270)$, $\\rho a_2(1320)$ and $K^{\\ast 0}(892) \\bar{K}_2^{\\ast 0}(1430) $) and Axial-vector-Pseudoscalar ($K_1(1270)^+ K^-$, $K_1(1400)^+ K^- $ and $b_1(1235)^+ \\pi^- $) pairs. Signals are observed for the first time in the $\\Upsilon(1S) \\to \\ph"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1205.1246","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"}