{"paper":{"title":"Search for $B^0$ Decays to Invisible Final States ($+\\gamma$) at Belle","license":"http://creativecommons.org/licenses/by/4.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Bozek, A. Garmash, A. Ishikawa, A. J. Schwartz, A. Rostomyan, A. Sokolov, A. Vinokurova, Belle Collaboration: Y. Ku, B. G. Fulsom, B. Shwartz, C. Bele\\ {n}o, C. H. Kim, C. H. Wang, C. Kiesling, C.-L. Hsu, C. MacQueen, C. Schwanda, C. Z. Yuan, D. Cinabro, D. Epifanov, D. M. Asner, D. Matvienko, D. Y. Kim, E. Solovieva, E. Wang, E. Won, F. Tenchini, G. B. Mohanty, G. Bonvicini, G. De Nardo, G. Inguglia, G. Pakhlova, G. Russo, G. Schnell, G. Varner, H. Aihara, H. Hayashii, H. Kichimi, H. Ono, H. Park, H. Ye, I. Adachi, J. Bennett, J. Biswal, J. E. Fast, J.-G. Shiu, J. Libby, J. Schueler, K. Adamczyk, K. Chilikin, K. Cho, K. E. Varvell, K. Hayasaka, K. H. Kang, K. Huang, K. Inami, K. Kinoshita, K. Lieret, K. Nishimura, K. Ogawa, K. Senyo, K. Tanida, K. Trabelsi, L. E. Piilonen, L. Li Gioi, L. Santelj, M. Bra\\v{c}ko, M.-C. Chang, M. Hernandez Villanueva, M. Iwasaki, M. Merola, M. Nayak, M. Ritter, M. R\\\"ohrken, M. Shapkin, M. Stari\\v{c}, M. Sumihama, M. Takizawa, M. T. Prim, M. Uchida, M. Watanabe, M.-Z. Wang, N. Dash, N. Gabyshev, N. K. Nisar, N. Rout, O. Grzymkowska, O. Hartbrich, P. Behera, P. Chang, P. Goldenzweig, P. Kody\\v{s}, P. Kri\\v{z}an, P. Krokovny, P. Oskin, P. Pakhlov, P. Urquijo, P. Wang, R. Ayad, R. Garg, R. Itoh, R. Kroeger, R. Kulasiri, R. Kumar, R. Mizuk, R. Mussa, R. Pestotnik, S. B. Yang, S. Cunliffe, S. Eidelman, S.-H. Park, S. Jia, S.-K. Choi, S. Korpar, S. Nishida, S. Ogawa, S. Patra, S. Uno, T. Aushev, T. Bilka, T. D. Kimmel, T. Higuchi, T. J. Moon, T. Kawasaki, T. K. Pedlar, T. Kuhr, T. Mori, T. Podobnik, T. Sanuki, T. Sumiyoshi, T. Uglov, T. V. Dong, U. Tamponi, V. Bhardwaj, V. Chekelian, V. Gaur, V. Popov, V. Savinov, V. Zhukova, W.-S. Hou, X. L. Wang, X. Xu, Y. B. Li, Y. Choi, Y. Guan, Y. Iwasaki, Y. Jin, Y.-J. Kwon, Y. Sakai, Y.-T. Lai, Y. Unno, Y. Usov, Z. Natkaniec, Z. P. Zhang, Z. S. Stottler","submitted_at":"2020-04-08T06:06:06Z","abstract_excerpt":"We report searches for $B^0\\to\\rm{invisible}$ and $B^0\\to\\rm{invisible}+\\gamma$ decays, where the energy of the photon is required to be larger than 0.5 GeV. These results are obtained from a $711\\,{\\rm fb}^{-1}$ data sample that contains $772 \\times 10^6 B\\bar{B}$ pairs and was collected near the $\\Upsilon\\,(4S)$ resonance with the Belle detector at the KEKB $e^+ e^-$ collider. We observe no significant signal for either decay and set upper limits on their branching fractions at $90\\%$ confidence level of $\\mathcal{B}\\,(B^0\\to\\rm{invisible}) < 7.8\\times10^{-5}$ and $\\mathcal{B}\\,(B^0\\to\\rm{in"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2004.03826","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":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2004.03826/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"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"}