{"paper":{"title":"Search for $B^+ \\to e^+ \\nu$ and $B^+ \\to \\mu^+ \\nu$ decays using hadronic tagging","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Abdesselam, A. Bala, A. Bondar, A. Bozek, A. Chen, A. Drutskoy, A. Garmash, A. Ishikawa, A. Kuzmin, A. M. Bakich, A. Moll, A. Rostomyan, A. Sibidanov, A. Sokolov, A. Vinokurova, A. Zupanc, B. Bhuyan, Belle Collaboration: Y. Yook, B. G. Cheon, B. Golob, B. R. Ko, B. Shwartz, C. H. Wang, C. Kiesling, C. Liu, C. P. Shen, C. Schwanda, C.-S. Park, C. Van Hulse, D. Dutta, D. Liventsev, D. M. Asner, D. \\v{C}ervenkov, D. Y. Kim, E. Kato, E. Nakano, E. Nedelkovska, E. Solovieva, E. Won, F. Simon, G. B. Mohanty, G. Bonvicini, G. Schnell, G. Tatishvili, G. Varner, H. Farhat, H. Hayashii, H. K. Park, H. Miyata, H. Park, I. Adachi, I. Jaegle, I. Nakamura, J. B. Kim, J. E. Fast, J.-G. Shiu, J. Haba, J. H. Kim, J. Klucar, J. S. Lange, K. Arinstein, K. Chilikin, K. Cho, K. Dutta, K. E. Varvell, K. Hara, K. Hayasaka, K. Kinoshita, K. Miyabayashi, K. M. Williams, K. Senyo, K. T. Kim, K. Trabelsi, L. E. Piilonen, L. Li Gioi, L. Santelj, M. Bra\\v{c}ko, M. E. Sevior, M. Heck, M. J. Kim, M. Nakao, M. Nayak, M. N. Wagner, M. Petri\\v{c}, M. Ritter, M. R\\\"ohrken, M. Stari\\v{c}, M. Steder, M. Sumihama, M. Uchida, M. Watanabe, M.-Z. Wang, N. Gabyshev, N. K. Nisar, O. Frost, O. Grzymkowska, O. Nitoh, O. Schneider, O. Seon, P. Katrenko, P. Kody\\v{s}, P. Kri\\v{z}an, P. Krokovny, P. Lukin, P. Pakhlov, P. Urquijo, P. Vanhoefer, P. Wang, R. Ayad, R. Chistov, R. Gillard, R. Glattauer, R. Itoh, R. Mussa, R. Pestotnik, S. Al Said, S. Bahinipati, S. Eidelman, S. Ganguly, S. Korpar, S. Nishida, S. Ogawa, S. Okuno, S. Ryu, S. Sandilya, S. Wehle, S. Yashchenko, T.-A. Shibata, T. Aushev, T. E. Browder, T. Ferber, T. Higuchi, T. Iijima, T. Iwashita, T. Julius, T. Kawasaki, T. K. Pedlar, T. Kuhr, T. Saito, T. Sanuki, T. Sumiyoshi, T. Uglov, V. Aulchenko, V. Bansal, V. Bhardwaj, V. Chekelian, V. Chobanova, V. Gaur, V. Savinov, V. Shebalin, V. Vorobyev, V. Zhilich, W.-S. Hou, X. H. He, X. L. Wang, Y. Choi, Y. Horii, Y. Hoshi, Y. Iwasaki, Y. J. Kim, Y.-J. Kwon, Y. Li, Y. Liu, Y. M. Goh, Y. Nagasaka, Y. Sakai, Y. Sato, Y.-S. Sohn, Y. Teramoto, Y. Usov, Y. Watanabe, Y. Yamashita, Y. Yusa, Z. Dole\\v{z}al, Z. Dr\\'asal, Z. Natkaniec, Z. P. Zhang","submitted_at":"2014-06-24T19:55:44Z","abstract_excerpt":"We present a search for the rare leptonic decays $B^+ \\to e^+ \\nu_e$ and $B^+ \\to \\mu^+ \\nu_\\mu$, using the full $\\Upsilon(4S)$ data sample of $772\\times 10^6$ $B\\bar{B}$ pairs collected with the Belle detector at the $\\small\\textbf{KEKB}$ asymmetric-energy $e^+ e^-$ collider. One of the $B$ mesons from the $\\Upsilon(4S) \\to B\\bar{B}$ decay is fully reconstructed in a hadronic mode, while the recoiling side is analyzed for the signal decay. We find no evidence of a signal in any of the decay modes. Upper limits of the corresponding branching fractions are determined as ${\\cal B}(B^+ \\to e^+ \\n"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"1406.6356","kind":"arxiv","version":4},"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"}