{"paper":{"title":"Search for $h_b(2P)\\to\\gamma\\chi_{bJ}(1P)$ at $\\sqrt{s} = 10.860$ GeV","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"hep-ex","authors_text":"A. Bobrov, A. Bozek, A. Budano, A. Garmash, A. Giri, A. Natochii, A. Passeri, A. Sokolov, A. Vinokurova, B. D. Yabsley, Belle Collaboration: A. Boschetti, B. G. Cheon, B. G. Fulsom, C. Hadjivasiliou, C. H. Kim, C. Kiesling, C.-L. Hsu, C. P. Shen, C. Schwanda, D. Biswas, D. Bodrov, D. Epifanov, D. Ferlewicz, D. Levit, D. Liventsev, D. M. Asner, D. Matvienko, D. Y. Kim, E. Graziani, E. Kovalenko, E. Prencipe, E. Solovieva, E. Wang, E. Won, F. Di Capua, F. Meier, F. Tenchini, G. B. Mohanty, G. De Nardo, G. De Pietro, G. Pakhlova, G. Russo, G. Schnell, H. Aihara, H. Hayashii, H. Ono, I. Adachi, J. Bennett, J.-G. Shiu, J. H. Yin, J. Park, J. Yelton, K. Belous, K. Chilikin, K. Cho, K. Gudkova, K. Hayasaka, K.-H. Kim, K. Inami, K. Kinoshita, K. Kumara, K. Miyabayashi, K. Senyo, K. Tanida, L. E. Piilonen, L. K. Li, L. Li Gioi, L. Nayak, L. Santelj, L. Yuan, M. Bessner, M. Bra\\v{c}ko, M.-C. Chang, M. Iwasaki, M. Masuda, M. Merola, M. Nakao, M. Nayak, M. Stari\\v{c}, M. Sumihama, M. Takizawa, M. T. Prim, M. Uchida, M.-Z. Wang, N. Ipsita, N. Rout, P. Branchini, P. Ecker, P. Goldenzweig, P. Kody\\v{s}, P. Kri\\v{z}an, P. Krokovny, R. Ayad, R. Dhamija, R. Garg, R. Itoh, R. Kumar, R. Mizuk, R. Mussa, R. Pestotnik, R. Tiwary, S. Choudhury, S. Hazra, S.-H. Park, S.-K. Choi, S. Korpar, S. Nishida, S. Ogawa, S. Patra, S. Paul, S. Sandilya, S. Uno, Sw. Banerjee, T. Aushev, T. E. Browder, T. Gu, T. Hara, T. Kawasaki, T. K. Pedlar, T. Lam, T. Matsuda, T. Podobnik, T. V. Dong, U. Tamponi, V. Gaur, V. Savinov, W. Shan, W.-S. Hou, W. W. Jacobs, X. L. Wang, Y. B. Li, Y. Choi, Y. Guan, Y. Jin, Y.-J. Kwon, Y.-K. Kim, Y. Ma, Y. Seino, Y. Unno, Y. Yook, Z. Dole\\v{z}al, Z. Natkaniec","submitted_at":"2024-10-21T16:46:53Z","abstract_excerpt":"In the bottomonium sector, the hindered magnetic dipole (M1) transitions between P-wave states $h_b(2P) \\rightarrow \\chi_{bJ}(1P) \\gamma$, $J=0, \\, 1, \\, 2$, are expected to be severely suppressed according to the Relativized Quark Model, due to the spin flip of the $b$ quark. Nevertheless, a recent model following the coupled-channel approach predicts the corresponding branching fractions to be enhanced by orders of magnitude. In this Letter, we report the first search for such transitions. We find no significant signals and set upper limits at 90% CL on the corresponding branching fractions:"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2410.16181","kind":"arxiv","version":1},"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/2410.16181/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"}