IRIS

: We present a search for the lepton flavor violating decays B^{+}→K^{+}τ^{±}ℓ^{∓}, with ℓ=(e,μ), using the full data sample of 772×10^{6}  BB[over ¯] pairs recorded by the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We use events in which one B meson is fully reconstructed in a hadronic decay mode. We find no evidence for B^{±}→K^{±}τℓ decays and set upper limits on their branching fractions at the 90% confidence level in the (1-3)×10^{-5} range. The obtained limits are the world's best results.

Search for the Lepton Flavor Violating Decays B+→K+τ±ℓ∓ (ℓ=e, μ) at Belle / Watanuki, S; de Marino, G; Trabelsi, K; Adachi, I; Aihara, H; Asner, D M; Atmacan, H; Aulchenko, V; Aushev, T; Ayad, R; Babu, V; Banerjee, Sw; Bauer, M; Behera, P; Belous, K; Bessner, M; Bhardwaj, V; Bhuyan, B; Biswas, D; Bodrov, D; Bonvicini, G; Borah, J; Bozek, A; Bračko, M; Branchini, P; Browder, T E; Budano, A; Campajola, M; Cao, L; Červenkov, D; Chang, M-C; Cheon, B G; Chilikin, K; Cho, K; Cho, S-J; Choi, S-K; Choi, Y; Choudhury, S; Cinabro, D; Das, S; De Nardo, G; De Pietro, G; Dhamija, R; Di Capua, F; Dong, T V; Epifanov, D; Ferber, T; Ferlewicz, D; Fulsom, B G; Garg, R; Gaur, V; Garmash, A; Giri, A; Goldenzweig, P; Graziani, E; Gu, T; Guan, Y; Gudkova, K; Hadjivasiliou, C; Halder, S; Han, X; Hara, T; Hayasaka, K; Hayashii, H; Herrmann, D; Hou, W-S; Hsu, C-L; Inami, K; Inguglia, G; Ipsita, N; Ishikawa, A; Itoh, R; Iwasaki, M; Jacobs, W W; Ji, Q P; Jia, S; Jin, Y; Joo, K K; Kaliyar, A B; Kichimi, H; Kim, C H; Kim, D Y; Kim, K-H; Kim, Y-K; Kinoshita, K; Kodyš, P; Korobov, A; Korpar, S; Kovalenko, E; Križan, P; Krokovny, P; Kuhr, T; Kumar, M; Kumara, K; Kuzmin, A; Kwon, Y-J; Lange, J S; Laurenza, M; Lee, S C; Lewis, P; Li, L K; Li, Y; Li Gioi, L; Libby, J; Lin, Y-R; Liventsev, D; Matsuda, T; Maurya, S K; Meier, F; Merola, M; Metzner, F; Miyabayashi, K; Mizuk, R; Mohanty, G B; Nakao, M; Nayak, L; Nayak, M; Nisar, N K; Nishida, S; Ono, H; Oskin, P; Pakhlova, G; Pardi, S; Park, H; Park, J; Park, S-H; Passeri, A; Pedlar, T K; Pestotnik, R; Piilonen, L E; Podobnik, T; Prencipe, E; Prim, M T; Röhrken, M; Rout, N; Russo, G; Sandilya, S; Sangal, A; Santelj, L; Savinov, V; Schnell, G; Schwanda, C; Seino, Y; Senyo, K; Sevior, M E; Shan, W; Shapkin, M; Shiu, J-G; Shwartz, B; Simon, F; Solovieva, E; Starič, M; Sumihama, M; Sumiyoshi, T; Takizawa, M; Tanida, K; Tenchini, F; Uchida, M; Uglov, T; Unno, Y; Uno, K; Uno, S; van Tonder, R; Varner, G; Varvell, K E; Wang, D; Wang, E; Wang, M-Z; Won, E; Xu, X; Yabsley, B D; Yan, W; Yang, S B; Yelton, J; Yusa, Y; Zhang, Z P; Zhilich, V; Zhukova, V. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 130:26(2023), p. 261802. [10.1103/PhysRevLett.130.261802]

Search for the Lepton Flavor Violating Decays B+→K+τ±ℓ∓ (ℓ=e, μ) at Belle

Campajola, M;De Nardo, G;Di Capua, F;Merola, M;Russo, G;
2023

Abstract

: We present a search for the lepton flavor violating decays B^{+}→K^{+}τ^{±}ℓ^{∓}, with ℓ=(e,μ), using the full data sample of 772×10^{6}  BB[over ¯] pairs recorded by the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We use events in which one B meson is fully reconstructed in a hadronic decay mode. We find no evidence for B^{±}→K^{±}τℓ decays and set upper limits on their branching fractions at the 90% confidence level in the (1-3)×10^{-5} range. The obtained limits are the world's best results.
2023
Search for the Lepton Flavor Violating Decays B+→K+τ±ℓ∓ (ℓ=e, μ) at Belle / Watanuki, S; de Marino, G; Trabelsi, K; Adachi, I; Aihara, H; Asner, D M; Atmacan, H; Aulchenko, V; Aushev, T; Ayad, R; Babu, V; Banerjee, Sw; Bauer, M; Behera, P; Belous, K; Bessner, M; Bhardwaj, V; Bhuyan, B; Biswas, D; Bodrov, D; Bonvicini, G; Borah, J; Bozek, A; Bračko, M; Branchini, P; Browder, T E; Budano, A; Campajola, M; Cao, L; Červenkov, D; Chang, M-C; Cheon, B G; Chilikin, K; Cho, K; Cho, S-J; Choi, S-K; Choi, Y; Choudhury, S; Cinabro, D; Das, S; De Nardo, G; De Pietro, G; Dhamija, R; Di Capua, F; Dong, T V; Epifanov, D; Ferber, T; Ferlewicz, D; Fulsom, B G; Garg, R; Gaur, V; Garmash, A; Giri, A; Goldenzweig, P; Graziani, E; Gu, T; Guan, Y; Gudkova, K; Hadjivasiliou, C; Halder, S; Han, X; Hara, T; Hayasaka, K; Hayashii, H; Herrmann, D; Hou, W-S; Hsu, C-L; Inami, K; Inguglia, G; Ipsita, N; Ishikawa, A; Itoh, R; Iwasaki, M; Jacobs, W W; Ji, Q P; Jia, S; Jin, Y; Joo, K K; Kaliyar, A B; Kichimi, H; Kim, C H; Kim, D Y; Kim, K-H; Kim, Y-K; Kinoshita, K; Kodyš, P; Korobov, A; Korpar, S; Kovalenko, E; Križan, P; Krokovny, P; Kuhr, T; Kumar, M; Kumara, K; Kuzmin, A; Kwon, Y-J; Lange, J S; Laurenza, M; Lee, S C; Lewis, P; Li, L K; Li, Y; Li Gioi, L; Libby, J; Lin, Y-R; Liventsev, D; Matsuda, T; Maurya, S K; Meier, F; Merola, M; Metzner, F; Miyabayashi, K; Mizuk, R; Mohanty, G B; Nakao, M; Nayak, L; Nayak, M; Nisar, N K; Nishida, S; Ono, H; Oskin, P; Pakhlova, G; Pardi, S; Park, H; Park, J; Park, S-H; Passeri, A; Pedlar, T K; Pestotnik, R; Piilonen, L E; Podobnik, T; Prencipe, E; Prim, M T; Röhrken, M; Rout, N; Russo, G; Sandilya, S; Sangal, A; Santelj, L; Savinov, V; Schnell, G; Schwanda, C; Seino, Y; Senyo, K; Sevior, M E; Shan, W; Shapkin, M; Shiu, J-G; Shwartz, B; Simon, F; Solovieva, E; Starič, M; Sumihama, M; Sumiyoshi, T; Takizawa, M; Tanida, K; Tenchini, F; Uchida, M; Uglov, T; Unno, Y; Uno, K; Uno, S; van Tonder, R; Varner, G; Varvell, K E; Wang, D; Wang, E; Wang, M-Z; Won, E; Xu, X; Yabsley, B D; Yan, W; Yang, S B; Yelton, J; Yusa, Y; Zhang, Z P; Zhilich, V; Zhukova, V. - In: PHYSICAL REVIEW LETTERS. - ISSN 0031-9007. - 130:26(2023), p. 261802. [10.1103/PhysRevLett.130.261802]
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11588/938417
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