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Article ; Online: First Simultaneous Determination of Inclusive and Exclusive |V_{ub}|.

Cao, L / Bernlochner, F / Tackmann, K / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aushev, T / Ayad, R / Babu, V / Bahinipati, S / Banerjee, Sw / Behera, P / Belous, K / Bennett, J / Bessner, M / Bhuyan, B / Bilka, T /

Biswas, D / Bobrov, A / Bodrov, D / Borah, J / Bozek, A / Bračko, M / Branchini, P / Browder, T E / Budano, A / Campajola, M / Červenkov, D / Chang, M-C / Cheon, B G / Chilikin, K / Cho, H E / Cho, K / Cho, S-J / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Das, S / de Marino, G / De Nardo, G / De Pietro, G / Dhamija, R / Di Capua, F / Dingfelder, J / Doležal, Z / Dong, T V / Ferber, T / Ferlewicz, D / Frey, A / Fulsom, B G / Gaur, V / Garmash, A / Giri, A / Goldenzweig, P / Graziani, E / Gu, T / Guan, Y / Gudkova, K / Hadjivasiliou, C / Halder, S / Hara, T / Hartbrich, O / Hayasaka, K / Hayashii, H / Hedges, M T / Herrmann, D / Hou, W-S / Hsu, C-L / Iijima, T / Inami, K / Ipsita, N / Ishikawa, A / Itoh, R / Iwasaki, M / Jacobs, W W / Jang, E-J / Jia, S / Jin, Y / Joo, K K / Kalita, D / Kang, K H / Kiesling, C / Kim, C H / Kim, D Y / Kim, K-H / Kim, Y-K / Kinoshita, K / Kodyš, P / Konno, T / Korobov, A / Korpar, S / Kovalenko, E / Križan, P / Krokovny, P / Kuhr, T / Kumar, R / Kumara, K / Kuzmin, A / Kwon, Y-J / Lange, J S / Laurenza, M / Lee, S C / Lewis, P / Li, J / Li, L K / Li, Y / Libby, J / Lin, Y-R / Liventsev, D / Luo, T / Ma, Y / Martini, A / Masuda, M / Matsuda, T / Matvienko, D / Maurya, S K / Meier, F / Merola, M / Metzner, F / Miyabayashi, K / Mizuk, R / Mohanty, G B / Mrvar, M / Mussa, R / Nakamura, I / Nakao, M / Natkaniec, Z / Natochii, A / Nayak, L / Nayak, M / Nisar, N K / Nishida, S / Ogawa, K / Ogawa, S / Ono, H / Oskin, P / Pakhlov, P / Pakhlova, G / Pang, T / Pardi, S / Park, H / Park, J / Park, S-H / Passeri, A / Patra, S / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Podobnik, T / Prencipe, E / Prim, M T / Rout, N / Rozanska, M / 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 / Sharma, C / Shen, C P / Shiu, J-G / Shwartz, B / Sokolov, A / Solovieva, E / Starič, M / Stottler, Z S / Sumihama, M / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Tiwary, R / Trabelsi, K / Uchida, M / Uglov, T / Unno, Y / Uno, K / Uno, S / Ushiroda, Y / Usov, Y / Vahsen, S E / Varner, G / Varvell, K E / Vossen, A / Wang, D / Wang, E / Wang, M-Z / Watanuki, S / Werbycka, O / Won, E / Xu, X / Yabsley, B D / Yan, W / Yang, S B / Yin, J H / Yook, Y / Yusa, Y / Zhang, Z P / Zhilich, V / Zhukova, V

Physical review letters

2023 Volume 131, Issue 21, Page(s) 211801

Abstract: The first simultaneous determination of the absolute value of the Cabibbo-Kobayashi-Maskawa matrix element V_{ub} using inclusive and exclusive decays is performed with the full Belle data set at the ϒ(4S) resonance, corresponding to an integrated ... ...

Abstract	The first simultaneous determination of the absolute value of the Cabibbo-Kobayashi-Maskawa matrix element V_{ub} using inclusive and exclusive decays is performed with the full Belle data set at the ϒ(4S) resonance, corresponding to an integrated luminosity of 711 fb^{-1}. We analyze collision events in which one B meson is fully reconstructed in hadronic modes. This allows for the reconstruction of the hadronic X_{u} system of the semileptonic b→uℓν[over ¯]_{ℓ} decay. We separate exclusive B→πℓν[over ¯]_{ℓ} decays from other inclusive B→X_{u}ℓν[over ¯]_{ℓ} and backgrounds with a two-dimensional fit that utilizes the number of charged pions in the X_{u} system and the four-momentum transfer q^{2} between the B and X_{u} systems. Combining our measurement with information from lattice QCD and QCD calculations of the inclusive partial rate as well as external experimental information on the shape of the B→πℓν[over ¯]_{ℓ} form factor, we determine \|V_{ub}^{excl}\|=(3.78±0.23±0.16±0.14)×10^{-3} and \|V_{ub}^{incl}\|=(3.88±0.20±0.31±0.09)×10^{-3}, respectively, with the uncertainties being the statistical error, systematic errors, and theory errors. The ratio of \|V_{ub}^{excl}\|/\|V_{ub}^{incl}\|=0.97±0.12 is compatible with unity.
Language	English
Publishing date	2023-09-29
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.131.211801
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: First Measurement of the B^{+}→π^{+}π^{0}π^{0} Branching Fraction and CP Asymmetry.

Lai, Y-T / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aulchenko, V / Aushev, T / Ayad, R / Babu, V / Bahinipati, S / Behera, P / Belous, K / Bennett, J / Bessner, M / Bhuyan, B / Bilka, T / Bobrov, A / Borah, J /

Bozek, A / Bračko, M / Branchini, P / Browder, T E / Budano, A / Campajola, M / Červenkov, D / Chang, M-C / Chang, P / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, H E / Cho, K / Cho, S-J / Choi, S-K / Choi, Y / Cinabro, D / Cunliffe, S / Czank, T / Das, S / De Nardo, G / De Pietro, G / Dhamija, R / Di Capua, F / Dingfelder, J / Doležal, Z / Dong, T V / Ferber, T / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Giri, A / Goldenzweig, P / Graziani, E / Gu, T / Guan, Y / Gudkova, K / Hadjivasiliou, C / Halder, S / Hartbrich, O / Hayasaka, K / Hayashii, H / Higuchi, T / Hou, W-S / Hsu, C-L / Iijima, T / Inami, K / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jang, E-J / Jia, S / Jin, Y / Kaliyar, A B / Kang, K H / Kim, C H / Kim, D Y / Kim, K-H / Kim, Y-K / Kinoshita, K / Kodyš, P / Konno, T / Korobov, A / Korpar, S / Kovalenko, E / Križan, P / Krokovny, P / Kumar, M / Kumar, R / Kumara, K / Kuzmin, A / Kwon, Y-J / Lam, T / Lange, J S / Laurenza, M / Lee, S C / Levit, D / Li, J / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Lieret, K / Liventsev, D / Martini, A / Masuda, M / Matvienko, D / Meier, F / Merola, M / Metzner, F / Mizuk, R / Mohanty, G B / Moon, T J / Mrvar, M / Mussa, R / Nakao, M / Natochii, A / Nayak, L / Nisar, N K / Nishida, S / Ogawa, S / Pakhlova, G / Pang, T / Pardi, S / Park, H / Park, S-H / Passeri, A / Patra, S / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Podobnik, T / Prencipe, E / Prim, M T / Rostomyan, A / Rout, N / Russo, G / Sahoo, D / Sakai, Y / Sandilya, S / Sangal, A / Santelj, L / Sanuki, T / Savinov, V / Schnell, G / Schueler, J / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shapkin, M / Sharma, C / Shen, C P / Shiu, J-G / Singh, J B / Sokolov, A / Solovieva, E / Starič, M / Stottler, Z S / Strube, J F / Sumihama, M / Sumisawa, K / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Trabelsi, K / Uglov, T / Unno, Y / Uno, K / Uno, S / Urquijo, P / van Tonder, R / Varner, G / Varvell, K E / Vinokurova, A / Vossen, A / Waheed, E / Wang, C H / Wang, X L / Watanabe, M / Watanuki, S / Won, E / Yabsley, B D / Yan, W / Yang, S B / Ye, H / Yelton, J / Zhai, Y / Zhang, Z P / Zhilich, V / Zhukova, V

Physical review letters

2023 Volume 130, Issue 18, Page(s) 181804

Abstract: We study B^{+}→π^{+}π^{0}π^{0} using 711 fb^{-1} of data collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We measure an inclusive branching fraction of (19.0±1.5±1.4)×10^{-6} and an inclusive CP ...

Abstract	We study B^{+}→π^{+}π^{0}π^{0} using 711 fb^{-1} of data collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. We measure an inclusive branching fraction of (19.0±1.5±1.4)×10^{-6} and an inclusive CP asymmetry of (9.2±6.8±0.7)%, where the first uncertainties are statistical and the second are systematic, and a B^{+}→ρ(770)^{+}π^{0} branching fraction of (11.2±1.1±0.9_{-1.6}^{+0.8})×10^{-6}, where the third uncertainty is due to possible interference with B^{+}→ρ(1450)^{+}π^{0}. We present the first observation of a structure around 1 GeV/c^{2} in the π^{0}π^{0} mass spectrum, with a significance of 6.4σ, and measure a branching fraction to be (6.9±0.9±0.6)×10^{-6}. We also report a measurement of local CP asymmetry in this structure.
Language	English
Publishing date	2023-03-03
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.130.181804
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Search for a Heavy Neutrino in τ Decays at Belle.

Liventsev, D / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Ayad, R / Babu, V / Banerjee, Sw / Bauer, M / Behera, P / Belous, K / Bennett, J / Bessner, M / Bilka, T / Biswas, D / Bodrov, D / Bonvicini, G / Borah, J /

Bozek, A / Bračko, M / Branchini, P / Browder, T E / Budano, A / Campajola, M / Červenkov, D / Chang, M-C / Chen, A / Cheon, B G / Cho, H E / 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 / Doležal, Z / Dong, T V / Dossett, D / Epifanov, D / Ferber, T / Ferlewicz, D / Fulsom, B G / Garg, R / Gaur, V / Giri, A / Goldenzweig, P / Graziani, E / Gu, T / Gudkova, K / Hadjivasiliou, C / Han, X / Hara, T / Hayasaka, K / Hayashii, H / Hedges, M T / Herrmann, D / Hernández Villanueva, M / Hsu, C-L / Inami, K / Ipsita, N / Ishikawa, A / Itoh, R / Iwasaki, M / Jacobs, W W / Jang, E-J / Jia, S / Jin, Y / Kaliyar, A B / Kang, K H / Kawasaki, T / Kiesling, C / Kim, C H / Kim, D Y / Kim, K-H / Kim, Y-K / Kodyš, P / Korobov, A / Korpar, S / Kovalenko, E / Križan, P / Krokovny, P / Kumar, M / Kumar, R / Kumara, K / Kwon, Y-J / Lam, T / Lange, J S / Lee, S C / Lewis, P / Li, L K / Li, Y / Li Gioi, L / Libby, J / Lieret, K / Lin, Y-R / Luo, T / Matsuda, T / Matvienko, D / Meier, F / Merola, M / Metzner, F / Miyabayashi, K / Mizuk, R / Mohanty, G B / Mussa, R / Nakamura, I / Nakano, T / Nakao, M / Natkaniec, Z / Natochii, A / Nayak, L / Nayak, M / Nisar, N K / Nishida, S / Ogawa, S / Ono, H / Oskin, P / Pakhlov, P / Pakhlova, G / Pardi, S / Park, H / Park, J / Passeri, A / Patra, S / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Podobnik, T / Prencipe, E / Prim, M T / Rostomyan, A / Rout, N / Russo, G / Sandilya, S / Sangal, A / Santelj, L / Savinov, V / Schnell, G / Schueler, J / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shapkin, M / Sharma, C / Shen, C P / Shiu, J-G / Shwartz, B / Simon, F / Sokolov, A / Solovieva, E / Starič, M / Sumihama, M / Sumiyoshi, T / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Uchida, M / Uehara, S / Uno, S / Usov, Y / van Tonder, R / Varner, G / Varvell, K E / Vinokurova, A / Wang, M-Z / Wang, X L / Watanabe, M / Watanuki, S / Werbycka, O / Won, E / Xu, X / Yabsley, B D / Yan, W / Yang, S B / Yelton, J / Yin, J H / Yuan, C Z / Yuan, L / Zhang, Z P / Zhilich, V / Zhukova, V

Physical review letters

2023 Volume 131, Issue 21, Page(s) 211802

Abstract: We report on a search for a heavy Majorana neutrino in the decays τ^{-}→π^{-}ν_{h}, ν_{h}→π^{±}ℓ^{∓}, ℓ=e, μ. The results are obtained using the full data sample of 988 fb^{-1} collected with the Belle detector at the KEKB asymmetric energy e^{+}e^{-} ... ...

Abstract	We report on a search for a heavy Majorana neutrino in the decays τ^{-}→π^{-}ν_{h}, ν_{h}→π^{±}ℓ^{∓}, ℓ=e, μ. The results are obtained using the full data sample of 988 fb^{-1} collected with the Belle detector at the KEKB asymmetric energy e^{+}e^{-} collider, which contains 912×10^{6} ττ pairs. We observe no significant signal and set 95% CL upper limits on the couplings of the heavy right-handed neutrinos to the conventional standard model left-handed neutrinos in the mass range 0.2-1.6 GeV/c^{2}. This is the first study of a mixed couplings of heavy neutrinos to τ leptons and light-flavor leptons.
Language	English
Publishing date	2023-09-29
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.131.211802
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: 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

Physical review letters

2023 Volume 130, Issue 26, Page(s) 261802

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 ... ...

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.
Language	English
Publishing date	2023-01-09
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.130.261802
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Evidence of a New Excited Charmed Baryon Decaying to Σ_{c}(2455)^{0,++}π^{±}.

Li, Y B / Shen, C P / Adachi, I / Aihara, H / Asner, D M / Atmacan, H / Aushev, T / Ayad, R / Babu, V / Bahinipati, S / Behera, P / Belous, K / Bennett, J / Bessner, M / Bhardwaj, V / Bhuyan, B / Bilka, T / Bodrov, D / Borah, J /

Bozek, A / Bračko, M / Branchini, P / Browder, T E / Budano, A / Campajola, M / Červenkov, D / Chang, M-C / Chang, P / Cheon, B G / Chilikin, K / Cho, H E / Cho, K / Cho, S-J / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Das, S / De Pietro, G / Dhamija, R / Di Capua, F / Dingfelder, J / Doležal, Z / Dong, T V / Dossett, D / Epifanov, D / Fulsom, B G / Garg, R / Gaur, V / Garmash, A / Giri, A / Goldenzweig, P / Graziani, E / Gu, T / Guan, Y / Gudkova, K / Hadjivasiliou, C / Hayasaka, K / Hayashii, H / Hou, W-S / Hsu, C-L / Iijima, T / Inami, K / Ipsita, N / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jang, E-J / Ji, Q P / Jia, S / Jin, Y / Joo, K K / Karyan, G / Kawasaki, T / Kichimi, H / Kiesling, C / Kim, C H / Kim, D Y / Kim, K-H / Kim, Y-K / Kindo, H / Kinoshita, K / Kodyš, P / Konno, T / Korobov, A / Korpar, S / Kovalenko, E / Križan, P / Krokovny, P / Kumar, M / Kumar, R / Kumara, K / Kwon, Y-J / Lam, T / Lange, J S / Laurenza, M / Lee, S C / Li, C H / Li, J / Li, L K / Li, Y / Li Gioi, L / Libby, J / Lieret, K / Liventsev, D / Masuda, M / Matsuda, T / Matvienko, D / Maurya, S K / Meier, F / Merola, M / Metzner, F / Miyabayashi, K / Mizuk, R / Mohanty, G B / Nakamura, I / Nakao, M / Natkaniec, Z / Natochii, A / Nayak, L / Niiyama, M / Nisar, N K / Nishida, S / Ogawa, S / Ono, H / Oskin, P / Pakhlov, P / Pakhlova, G / Pardi, S / Park, H / Park, S-H / Patra, S / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Podobnik, T / Prencipe, E / Prim, M T / Rout, N / Russo, G / Sandilya, S / Santelj, L / Savinov, V / Schnell, G / Schueler, J / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shapkin, M / Sharma, C / Shiu, J-G / Singh, J B / Sokolov, A / Solovieva, E / Starič, M / Stottler, Z S / Sumihama, M / Sumiyoshi, T / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Trabelsi, K / Tsuboyama, T / Uchida, M / Uglov, T / Unno, Y / Uno, S / Usov, Y / van Tonder, R / Varner, G / Varvell, K E / Waheed, E / Wang, E / Wang, M-Z / Watanabe, M / Watanuki, S / Werbycka, O / Wiechczynski, J / Won, E / Yabsley, B D / Yan, W / Yang, S B / Yelton, J / Yin, J H / Yuan, C Z / Yusa, Y / Zhai, Y / Zhang, Z P / Zhilich, V / Zhukova, V

Physical review letters

2023 Volume 130, Issue 3, Page(s) 31901

Abstract: We present the study of B[over ¯]^{0}→Σ_{c}(2455)^{0,++}π^{±}p[over ¯] decays based on 772×10^{6} BB[over ¯] events collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. The Σ_{c}(2455)^{0,++} candidates are reconstructed ... ...

Abstract	We present the study of B[over ¯]^{0}→Σ_{c}(2455)^{0,++}π^{±}p[over ¯] decays based on 772×10^{6} BB[over ¯] events collected with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. The Σ_{c}(2455)^{0,++} candidates are reconstructed via their decay to Λ_{c}^{+}π^{∓} and Λ_{c}^{+} decays to pK^{-}π^{+}, pK_{S}^{0}, and Λπ^{+} final states. The corresponding branching fractions are measured to be B(B[over ¯]^{0}→Σ_{c}(2455)^{0}π^{+}p[over ¯])=(1.09±0.06±0.07)×10^{-4} and B(B[over ¯]^{0}→Σ_{c}(2455)^{++}π^{-}p[over ¯])=(1.84±0.11±0.12)×10^{-4}, which are consistent with the world average values with improved precision. A new structure is found in the M_{Σ_{c}(2455)^{0,++}π^{±}} spectrum with a significance of 4.2σ including systematic uncertainty. The structure is possibly an excited Λ_{c}^{+} and is tentatively named Λ_{c}(2910)^{+}. Its mass and width are measured to be (2913.8±5.6±3.8) MeV/c^{2} and (51.8±20.0±18.8) MeV, respectively. The products of branching fractions for the Λ_{c}(2910)^{+} are measured to be B(B[over ¯]^{0}→Λ_{c}(2910)^{+}p[over ¯])×B(Λ_{c}(2910)^{+}→Σ_{c}(2455)^{0}π^{+})=(9.5±3.6±1.6)×10^{-6} and B(B[over ¯]^{0}→Λ_{c}(2910)^{+}p[over ¯])×B(Λ_{c}(2910)^{+}→Σ_{c}(2455)^{++}π^{-})=(1.24±0.35±0.10)×10^{-5}. Here, the first and second uncertainties are statistical and systematic, respectively.
Language	English
Publishing date	2023-02-10
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.130.031901
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Article ; Online: Search for a Light Higgs Boson in Single-Photon Decays of ϒ(1S) Using ϒ(2S)→π^{+}π^{-}ϒ(1S) Tagging Method.

Jia, S / Shen, C P / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Atmacan, H / Aushev, T / Ayad, R / Babu, V / Behera, P / Belous, K / Bennett, J / Bessner, M / Bhardwaj, V / Bhuyan, B / Bilka, T / Bobrov, A / Bodrov, D /

Bonvicini, G / Borah, J / Bračko, M / Branchini, P / Browder, T E / Budano, A / Campajola, M / Červenkov, D / Chang, M-C / Chang, P / Chekelian, V / Chen, A / Cheon, B G / Chilikin, K / Cho, H E / Cho, K / Cho, S-J / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Das, S / Dash, N / De Nardo, G / De Pietro, G / Dhamija, R / Di Capua, F / Doležal, Z / Dong, T V / Epifanov, D / Ferber, T / Ferlewicz, D / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Giri, A / Goldenzweig, P / Golob, B / Graziani, E / Guan, Y / Gudkova, K / Hadjivasiliou, C / Hara, T / Hayasaka, K / Hayashii, H / Hedges, M T / Hou, W-S / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jang, E-J / Jin, Y / Joo, K K / Kahn, J / Kaliyar, A B / Kang, K H / Kawasaki, T / Kiesling, C / Kim, C H / Kim, D Y / Kim, K-H / Kim, Y-K / Kinoshita, K / Kodyš, P / Kohani, S / Konno, T / Korobov, A / Korpar, S / Kovalenko, E / Križan, P / Kroeger, R / Krokovny, P / Kumar, M / Kumar, R / Kumara, K / Kwon, Y-J / Lam, T / Laurenza, M / Lee, S C / Li, J / Li, L K / Li, Y / Li, Y B / Li Gioi, L / Libby, J / Lieret, K / Liventsev, D / Martini, A / Masuda, M / Matsuda, T / Matvienko, D / Maurya, S K / Meier, F / Merola, M / Metzner, F / Miyabayashi, K / Mizuk, R / Mohanty, G B / Mussa, R / Nakao, M / Narwal, D / Natkaniec, Z / Natochii, A / Nayak, L / Nisar, N K / Nishida, S / Nishimura, K / Ogawa, K / Ogawa, S / Ono, H / Oskin, P / Pakhlov, P / Pakhlova, G / Pang, T / Pardi, S / Park, S-H / Patra, S / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Podobnik, T / Prencipe, E / Prim, M T / Röhrken, M / Rostomyan, A / Rout, N / Russo, G / Sahoo, D / Sandilya, S / Sangal, A / Santelj, L / Sanuki, T / Savinov, V / Schnell, G / Schueler, J / Schwanda, C / Seino, Y / Senyo, K / Sevior, M E / Shapkin, M / Sharma, C / Shebalin, V / Shiu, J-G / Shwartz, B / Singh, J B / Sokolov, A / Solovieva, E / Stanič, S / Starič, M / Stottler, Z S / Sumihama, M / Sumisawa, K / Sumiyoshi, T / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Trabelsi, K / Uchida, M / Uehara, S / Uglov, T / Unno, Y / Uno, K / Uno, S / Urquijo, P / Vahsen, S E / Van Tonder, R / Varner, G / Vinokurova, A / Waheed, E / Wang, D / Wang, E / Wang, M-Z / Watanuki, S / Won, E / Yabsley, B D / Yan, W / Yang, S B / Ye, H / Yelton, J / Yin, J H / Yusa, Y / Zhai, Y / Zhang, Z P / Zhilich, V / Zhukova, V

Physical review letters

2022 Volume 128, Issue 8, Page(s) 81804

Abstract: We search for a light Higgs boson (A^{0}) decaying into a τ^{+}τ^{-} or μ^{+}μ^{-} pair in the radiative decays of ϒ(1S). The production of ϒ(1S) mesons is tagged by ϒ(2S)→π^{+}π^{-}ϒ(1S) transitions, using 158×10^{6} ϒ(2S) events accumulated with the ... ...

Abstract	We search for a light Higgs boson (A^{0}) decaying into a τ^{+}τ^{-} or μ^{+}μ^{-} pair in the radiative decays of ϒ(1S). The production of ϒ(1S) mesons is tagged by ϒ(2S)→π^{+}π^{-}ϒ(1S) transitions, using 158×10^{6} ϒ(2S) events accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant A^{0} signals in the mass range from the τ^{+}τ^{-} or μ^{+}μ^{-} threshold to 9.2 GeV/c^{2} are observed. We set the upper limits at 90% credibility level (C.L.) on the product branching fractions for ϒ(1S)→γA^{0} and A^{0}→τ^{+}τ^{-} varying from 3.8×10^{-6} to 1.5×10^{-4}. Our results represent an approximately twofold improvement on the current world best upper limits for the ϒ(1S)→γA^{0}(→τ^{+}τ^{-}) production. For A^{0}→μ^{+}μ^{-}, the upper limits on the product branching fractions for ϒ(1S)→γA^{0} and A^{0}→μ^{+}μ^{-} are at the same level as the world average limits, and vary from 3.1×10^{-7} to 1.6×10^{-5}. The upper limits at 90% credibility level on the Yukawa coupling f_{ϒ(1S)} and mixing angle sinθ_{A^{0}} are also given.
Language	English
Publishing date	2022-03-11
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.128.081804
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Article ; Online: Measurement of Differential Branching Fractions of Inclusive B→X_{u}ℓ^{+}ν_{ℓ} Decays.

Cao, L / Sutcliffe, W / Van Tonder, R / Bernlochner, F U / Adachi, I / Aihara, H / Asner, D M / Aushev, T / Ayad, R / Babu, V / Bahinipati, S / Behera, P / Belous, K / Bennett, J / Bessner, M / Bilka, T / Biswal, J / Bobrov, A / Bračko, M /

Branchini, P / Browder, T E / Budano, A / Campajola, M / Červenkov, D / Chang, M-C / Chang, P / Cheon, B G / Chilikin, K / Cho, H E / Cho, K / Cho, S-J / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Czank, T / Dash, N / De Pietro, G / Dhamija, R / Di Capua, F / Dingfelder, J / Doležal, Z / Dong, T V / Dubey, S / Epifanov, D / Ferber, T / Ferlewicz, D / Frey, A / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Giri, A / Goldenzweig, P / Gu, T / Gudkova, K / Halder, S / Hara, T / Hartbrich, O / Hayasaka, K / Hernandez Villanueva, M / Hou, W-S / Hsu, C-L / Inami, K / Ishikawa, A / Itoh, R / Iwasaki, M / Jacobs, W W / Jang, E-J / Jia, S / Jin, Y / Joo, K K / Kahn, J / Kang, K H / Kichimi, H / Kiesling, C / Kim, C H / Kim, D Y / Kim, S H / Kim, Y-K / Kimmel, T D / Kinoshita, K / Kodyš, P / Konno, T / Korobov, A / Korpar, S / Kovalenko, E / Križan, P / Kroeger, R / Krokovny, P / Kuhr, T / Kulasiri, R / Kumar, M / Kumar, R / Kumara, K / Kuzmin, A / Kwon, Y-J / Lee, S C / Li, C H / Li, J / Li, L K / Li, Y B / Li Gioi, L / Libby, J / Lieret, K / Liventsev, D / MacQueen, C / Masuda, M / Merola, M / Metzner, F / Miyabayashi, K / Mizuk, R / Mohanty, G B / Mohanty, S / Mrvar, M / Nakao, M / Natochii, A / Nayak, L / Niiyama, M / Nisar, N K / Nishida, S / Nishimura, K / Ogawa, S / Ono, H / Onuki, Y / Oskin, P / Pakhlova, G / Pardi, S / Park, H / Park, S-H / Passeri, A / Patra, S / Paul, S / Pedlar, T K / Piilonen, L E / Podobnik, T / Popov, V / Prencipe, E / Prim, M T / Röhrken, M / Rostomyan, A / Rout, N / Rozanska, M / Russo, G / Sahoo, D / Sandilya, S / Sangal, A / Santelj, L / Sanuki, T / Savinov, V / Schnell, G / Schueler, J / Schwanda, C / Schwartz, A J / Seino, Y / Senyo, K / Sevior, M E / Shapkin, M / Sharma, C / Shen, C P / Shiu, J-G / Shwartz, B / Simon, F / Sokolov, A / Solovieva, E / Starič, M / Strube, J F / Sumihama, M / Sumiyoshi, T / Takizawa, M / Tamponi, U / Tanida, K / Tao, Y / Tenchini, F / Trabelsi, K / Uchida, M / Uglov, T / Uno, S / Urquijo, P / Vahsen, S E / Varner, G / Varvell, K E / Waheed, E / Wang, C H / Wang, E / Wang, M-Z / Wang, P / Wang, X L / Watanabe, M / Watanuki, S / Werbycka, O / Won, E / Yabsley, B D / Yan, W / Yang, S B / Ye, H / Yin, J H / Zhang, Z P / Zhilich, V / Zhukova, V

Physical review letters

2022 Volume 127, Issue 26, Page(s) 261801

Abstract: 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 ... ...

Abstract	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.
Language	English
Publishing date	2022-01-14
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.127.261801
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Article ; Online: Measurement of Two-Particle Correlations of Hadrons in e^{+}e^{-} Collisions at Belle.

Chen, Y-C / Lee, Y-J / Chang, P / Adachi, I / Aihara, H / Al Said, S / Asner, D M / Aushev, T / Ayad, R / Babu, V / Behera, P / Belous, K / Bennett, J / Bessner, M / Bilka, T / Bodrov, D / Borah, J / Bračko, M / Branchini, P /

Browder, T E / Budano, A / Campajola, M / Červenkov, D / Chang, M-C / Chekelian, V / Cheon, B G / Chilikin, K / Cho, H E / Cho, K / Cho, S-J / Choi, S-K / Choi, Y / Cinabro, D / Das, S / De Nardo, G / De Pietro, G / Dhamija, R / Di Capua, F / Dingfelder, J / Dong, T V / Dossett, D / Epifanov, D / Ferber, T / Fulsom, B G / Garg, R / Gaur, V / Giri, A / Goldenzweig, P / Gu, T / Gudkova, K / Hadjivasiliou, C / Hartbrich, O / Hayasaka, K / Hayashii, H / Hou, W-S / Hsu, C-L / Iijima, T / Inami, K / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jia, S / Jin, Y / Kaliyar, A B / Kim, C H / Kim, D Y / Kim, K-H / Kim, Y-K / Kodyš, P / Konno, T / Korobov, A / Korpar, S / Kovalenko, E / Križan, P / Kroeger, R / Krokovny, P / Kumar, M / Kumar, R / Kumara, K / Kuzmin, A / Kwon, Y-J / Lai, Y-T / Lam, T / Lange, J S / Laurenza, M / Lee, S C / Li, J / Li, Y / Li, Y B / Li Gioi, L / Libby, J / Lieret, K / Lin, C-W / Liventsev, D / Martini, A / Masuda, M / Matsuda, T / Matvienko, D / Meier, F / Merola, M / Metzner, F / Miyabayashi, K / Mohanty, G B / Moon, T J / Mussa, R / Nakao, M / Natochii, A / Nayak, L / Nisar, N K / Nishida, S / Nishimura, K / Ogawa, S / Ono, H / Pakhlova, G / Pang, T / Pardi, S / Park, S-H / Patra, S / Paul, S / Pedlar, T K / Piilonen, L E / Podobnik, T / Prencipe, E / Prim, M T / Rout, N / Russo, G / Sahoo, D / Sandilya, S / Sangal, A / Santelj, L / Sanuki, T / Savinov, V / Schnell, G / Schwanda, C / Seidl, R / Seino, Y / Sevior, M E / Shapkin, M / Shiu, J-G / Singh, J B / Sokolov, A / Solovieva, E / Starič, M / Stottler, Z S / Sumihama, M / Sumisawa, K / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tenchini, F / Uchida, M / Uglov, T / Unno, Y / Uno, K / Uno, S / Van Tonder, R / Varner, G / Vinokurova, A / Vossen, A / Waheed, E / Wang, C H / Wang, D / Wang, E / Wang, X L / Watanuki, S / Won, E / Yan, W / Yang, S B / Ye, H / Yelton, J / Zhai, Y / Zhang, Z P / Zhilich, V / Zhukova, V

Physical review letters

2022 Volume 128, Issue 14, Page(s) 142005

Abstract: The measurement of two-particle angular correlation functions in high-multiplicity e^{+}e^{-} collisions at sqrt[s]=10.52 GeV is reported. In this study, the 89.5 fb^{-1} of hadronic e^{+}e^{-} annihilation data collected by the Belle detector at KEKB ... ...

Abstract	The measurement of two-particle angular correlation functions in high-multiplicity e^{+}e^{-} collisions at sqrt[s]=10.52 GeV is reported. In this study, the 89.5 fb^{-1} of hadronic e^{+}e^{-} annihilation data collected by the Belle detector at KEKB are used. Two-particle angular correlation functions are measured in the full relative azimuthal angle (Δϕ) and three units of pseudorapidity (Δη), defined by either the electron beam axis or the event-shape thrust axis, and are studied as a function of charged-particle multiplicity. The measurement in the thrust axis analysis, with mostly outgoing quark pairs determining the reference axis, is sensitive to the region of additional soft gluon emissions. No significant anisotropic collective behavior is observed with either coordinate analyses. Near-side jet correlations appear to be absent in the thrust axis analysis. The measurements are compared to predictions from various event generators and are expected to provide new constraints to the phenomenological models in the low-energy regime.
Language	English
Publishing date	2022-04-27
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.128.142005
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Article ; Online: Measurements of the Branching Fractions of the Semileptonic Decays Ξ_{c}^{0}→Ξ^{-}ℓ^{+}ν_{ℓ} and the Asymmetry Parameter of Ξ_{c}^{0}→Ξ^{-}π^{+}.

Li, Y B / Shen, C P / Adachi, I / Adamczyk, K / Aihara, H / Al Said, S / Asner, D M / Aushev, T / Ayad, R / Babu, V / Behera, P / Bennett, J / Bessner, M / Bhardwaj, V / Bhuyan, B / Bilka, T / Biswal, J / Bonvicini, G / Bozek, A /

Bračko, M / Browder, T E / Campajola, M / Červenkov, D / Chang, M-C / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Cho, S-J / Choi, S-K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Das, S / Dash, N / De Nardo, G / Dhamija, R / Di Capua, F / Dong, T V / Eidelman, S / Epifanov, D / Ferber, T / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Giri, A / Goldenzweig, P / Grzymkowska, O / Gudkova, K / Hadjivasiliou, C / Hartbrich, O / Hayasaka, K / Hayashii, H / Hernandez Villanueva, M / Hsu, C-L / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jia, S / Jin, Y / Joo, C W / Joo, K K / Kang, K H / Karyan, G / Kato, Y / Kichimi, H / Kim, C H / Kim, D Y / Kim, K-H / Kim, S H / Kinoshita, K / Kodyš, P / Konno, T / Korobov, A / Korpar, S / Kovalenko, E / Križan, P / Kroeger, R / Krokovny, P / Kuhr, T / Kumar, M / Kumar, R / Kumara, K / Kuzmin, A / Kwon, Y-J / Lalwani, K / Lange, J S / Lee, I S / Lee, S C / Li, C H / Li, L K / Li Gioi, L / Libby, J / Lieret, K / Liventsev, D / Masuda, M / Matvienko, D / McNeil, J T / Metzner, F / Mizuk, R / Mohanty, G B / Moon, T J / Mori, T / Mussa, R / Natochii, A / Nayak, L / Nayak, M / Niiyama, M / Nisar, N K / Nishida, S / Nishimura, K / Ogawa, S / Ono, H / Onuki, Y / Pakhlov, P / Pakhlova, G / Pang, T / Pardi, S / Park, H / Patra, S / Paul, S / Pedlar, T K / Pestotnik, R / Piilonen, L E / Podobnik, T / Popov, V / Prencipe, E / Prim, M T / Röhrken, M / Rostomyan, A / Rout, N / Russo, G / Sahoo, D / Sakai, Y / Sandilya, S / Santelj, L / Sanuki, T / Savinov, V / Schnell, G / Schwanda, C / Seino, Y / Senyo, K / Shapkin, M / Sharma, C / Shiu, J-G / Sokolov, A / Solovieva, E / Starič, M / Stottler, Z S / Sumihama, M / Tamponi, U / Tanida, K / Tenchini, F / Uchida, M / Uehara, S / Uglov, T / Uno, K / Uno, S / Usov, Y / Van Tonder, R / Varner, G / Vinokurova, A / Vossen, A / Wang, C H / Wang, M-Z / Wang, P / Wang, X L / Watanabe, M / Watanuki, S / Won, E / Xu, X / Yan, W / Yang, S B / Ye, H / Yin, J H / Yuan, C Z / Zhang, Z P / Zhilich, V / Zhukova, V

Physical review letters

2021 Volume 127, Issue 12, Page(s) 121803

Abstract: Using data samples of 89.5 and 711 fb^{-1} recorded at energies of sqrt[s]=10.52 and 10.58 GeV, respectively, with the Belle detector at the KEKB e^{+}e^{-} collider, we report measurements of branching fractions of semileptonic decays Ξ_{c}^{0}→Ξ^{-}ℓ^{ ...

Abstract	Using data samples of 89.5 and 711 fb^{-1} recorded at energies of sqrt[s]=10.52 and 10.58 GeV, respectively, with the Belle detector at the KEKB e^{+}e^{-} collider, we report measurements of branching fractions of semileptonic decays Ξ_{c}^{0}→Ξ^{-}ℓ^{+}ν_{ℓ} (ℓ=e or μ) and the CP-asymmetry parameter of Ξ_{c}^{0}→Ξ^{-}π^{+} decay. The branching fractions are measured to be B(Ξ_{c}^{0}→Ξ^{-}e^{+}ν_{e})=(1.31±0.04±0.07±0.38)% and B(Ξ_{c}^{0}→Ξ^{-}μ^{+}ν_{μ})=(1.27±0.06±0.10±0.37)%, and the decay parameter α_{Ξπ} is measured to be 0.63±0.03±0.01 with much improved precision compared with the current world average. The corresponding ratio B(Ξ_{c}^{0}→Ξ^{-}e^{+}ν_{e})/B(Ξ_{c}^{0}→Ξ^{-}μ^{+}ν_{μ}) is 1.03±0.05±0.07, which is consistent with the expectation of lepton flavor universality. The first measured asymmetry parameter A_{CP}=(α_{Ξ^{-}π^{+}}+α_{Ξ[over ¯]^{+}π^{-}})/(α_{Ξ^{-}π^{+}}-α_{Ξ[over ¯]^{+}π^{-}})=0.024±0.052±0.014 is found to be consistent with zero. The first and the second uncertainties above are statistical and systematic, respectively, while the third ones arise due to the uncertainty of the Ξ_{c}^{0}→Ξ^{-}π^{+} branching fraction.
Language	English
Publishing date	2021-10-01
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.127.121803
Database	MEDical Literature Analysis and Retrieval System OnLINE

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Article ; Online: Test of Lepton-Flavor Universality in B→K^{*}ℓ^{+}ℓ^{-} Decays at Belle.

Wehle, S / Adachi, I / Adamczyk, K / Aihara, H / Asner, D M / Atmacan, H / Aulchenko, V / Aushev, T / Ayad, R / Babu, V / Behera, P / Berger, M / Bhardwaj, V / Biswal, J / Bozek, A / Bračko, M / Browder, T E / Campajola, M / Cao, L /

Chang, M-C / Chen, A / Cheon, B G / Chilikin, K / Cho, K / Choi, Y / Choudhury, S / Cinabro, D / Cunliffe, S / Dash, N / De Nardo, G / Di Capua, F / Dubey, S / Eidelman, S / Epifanov, D / Ferber, T / Fulsom, B G / Garg, R / Gaur, V / Gabyshev, N / Garmash, A / Giri, A / Goldenzweig, P / Greenwald, D / Guan, Y / Haba, J / Hartbrich, O / Hayasaka, K / Hayashii, H / Hedges, M T / Higuchi, T / Hou, W-S / Hsu, C-L / Iijima, T / Inami, K / Inguglia, G / Ishikawa, A / Itoh, R / Iwasaki, M / Iwasaki, Y / Jacobs, W W / Jia, S / Jin, Y / Joffe, D / Kahn, J / Kaliyar, A B / Karyan, G / Kichimi, H / Kim, D Y / Kim, K T / Kim, S H / Kim, Y-K / Kinoshita, K / Komarov, I / Korpar, S / Kotchetkov, D / Kroeger, R / Krokovny, P / Kuhr, T / Kulasiri, R / Kumar, R / Kumara, K / Kuzmin, A / Kwon, Y-J / Lange, J S / Lee, J Y / Lee, S C / Li, Y B / Libby, J / Liptak, Z / Liventsev, D / Luo, T / MacNaughton, J / Masuda, M / Matsuda, T / McNeil, J T / Merola, M / Metzner, F / Miyata, H / Mizuk, R / Mohanty, G B / Moon, T J / Mussa, R / Nakao, M / Natochii, A / Nayak, M / Niebuhr, C / Niiyama, M / Nisar, N K / Nishida, S / Ogawa, K / Ogawa, S / Ono, H / Onuki, Y / Pakhlov, P / Pakhlova, G / Park, H / Park, S-H / Pedlar, T K / Pestotnik, R / Piilonen, L E / Podobnik, T / Popov, V / Prencipe, E / Prim, M T / Resmi, P K / Ritter, M / Rostomyan, A / Rout, N / Russo, G / Sahoo, D / Sakai, Y / Sandilya, S / Sangal, A / Santelj, L / Savinov, V / Schneider, O / Schnell, G / Schueler, J / Schwanda, C / Schwartz, A J / Seino, Y / Senyo, K / Sevior, M E / Shapkin, M / Shiu, J-G / Shwartz, B / Solovieva, E / Starič, M / Strube, J F / Sumiyoshi, T / Sutcliffe, W / Takizawa, M / Tamponi, U / Tanida, K / Tao, Y / Tenchini, F / Trabelsi, K / Uchida, M / Uglov, T / Unno, Y / Uno, S / Ushiroda, Y / Vahsen, S E / Van Tonder, R / Varner, G / Varvell, K E / Vorobyev, V / Wang, C H / Wang, M-Z / Wang, P / Wang, X L / Won, E / Xu, X / Yang, S B / Ye, H / Yin, J H / Yuan, C Z / Zhang, Z P / Zhilich, V / Zhukova, V / Zhulanov, V

Physical review letters

2021 Volume 126, Issue 16, Page(s) 161801

Abstract: We present a measurement of R_{K^{*}}, the branching fraction ratio B(B→K^{*}μ^{+}μ^{-})/B(B→K^{*}e^{+}e^{-}), for both charged and neutral B mesons. The ratio for the charged case R_{K^{*+}} is the first measurement ever performed. In addition, we ... ...

Abstract	We present a measurement of R_{K^{}}, the branching fraction ratio B(B→K^{}μ^{+}μ^{-})/B(B→K^{}e^{+}e^{-}), for both charged and neutral B mesons. The ratio for the charged case R_{K^{+}} is the first measurement ever performed. In addition, we report absolute branching fractions for the individual modes in bins of the squared dilepton invariant mass q^{2}. The analysis is based on a data sample of 711 fb^{-1}, containing 772×10^{6} BB[over ¯] events, recorded at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e^{+}e^{-} collider. The obtained results are consistent with standard model expectations.
Language	English
Publishing date	2021-05-07
Publishing country	United States
Document type	Journal Article
ZDB-ID	208853-8
ISSN	1079-7114 ; 0031-9007
ISSN (online)	1079-7114
ISSN	0031-9007
DOI	10.1103/PhysRevLett.126.161801
Database	MEDical Literature Analysis and Retrieval System OnLINE

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