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Van Tonder, R; Bernlochner, F U; Adachi, I; Aihara, H; Asner, D M; Ayad, R; Babu, V; Bahinipati, S; Behera, P; Belous, K; Bennett, J; Bessner, M; Biswal, J; Bobrov, A; Bračko, M; Browder, T E; Campajola, M; Chang, M-C; Chilikin, K; Cho, H E; Cho, K; Cho, S-J; Cinabro, D; Cunliffe, S; Dash, N; De Pietro, G; Dong, T V; Garg, R; Gaur, V; Gabyshev, N; Garmash, A; Gu, T; Gudkova, K; Hara, T; Hernandez Villanueva, M; Hou, W-S; Inami, K; Ishikawa, A; Itoh, R; Iwasaki, M; Jin, Y; Kahn, J; Kang, K H; Kichimi, H; Kim, C H; Kim, D Y; Kim, S H; Kinoshita, K; Konno, T; Korpar, S; Križan, P; Kroeger, R; Kuhr, T; Kulasiri, R; Kumar, R; Kuzmin, A; Kwon, Y-J; Lee, S C; Li, C H; Li, J; Li, L K; Li Gioi, L; Libby, J; Lieret, K; Liventsev, D; MacQueen, C; Merola, M; Miyabayashi, K; Natochii, A; Niiyama, M; Nisar, N K; Nishimura, K; Onuki, Y; Oskin, P; Park, S-H; Passeri, A; Piilonen, L E; Prencipe, E; Prim, M T; Savinov, V; Schwanda, C; Schwartz, A J; Seino, Y; Sevior, M E; Shwartz, B; Simon, F; Sokolov, A; Tanida, K; Tao, Y; Uchida, M; Uglov, T; Vahsen, S E; Varner, G; Wang, C H; Wang, P; Watanuki, S; Won, E; Ye, H; Yin, J H; Zhang, Z P
Physical review letters, 2021-Dec-24, 20211224, Volume: 127, Issue: 26Journal Article
The first measurements of differential branching fractions of inclusive semileptonic B→X_{u}ℓ^{+}ν_{ℓ} decays are performed using the full Belle data set of 711 fb^{-1} of integrated luminosity at the ϒ(4S) resonance and for ℓ=e, μ. With the availability of these measurements, new avenues for future shape-function model-independent determinations of the Cabibbo-Kobayashi-Maskawa matrix element |V_{ub}| can be pursued to gain new insights in the existing tension with respect to exclusive determinations. The differential branching fractions are reported as a function of the lepton energy, the four-momentum-transfer squared, light-cone momenta, the hadronic mass, and the hadronic mass squared. They are obtained by subtracting the backgrounds from semileptonic B→X_{c}ℓ^{+}ν_{ℓ} decays and other processes, and corrected for resolution and acceptance effects.
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