Author: "Said, S." / Topic: ddc:530 - Searchworks@Jio Institute Digital Library Search Results

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207 results on '"Said, S."'

1. Search for a Light Higgs Boson in Single-Photon Decays of ϒ(1S) Using ϒ(2S)→π$^{+}$π$^{-}$ϒ(1S) Tagging Method

Author: Belle Collaboration, 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., 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., Bracko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Cervenkov, 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., Dolezal, 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., Kodys, P., Kohani, S., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Krizan, 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., Rohrken, 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., Stanic, S., Staric, 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., and Zhukova, V.
Subjects: Physics, ddc:530
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 fΥ(1S) and mixing angle sin θ$_{A0}$ are also given.
Published: 2022
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2. Measurement of Two-Particle Correlations of Hadrons in $e^{+}e^{−}$ Collisions at Belle

Author: Chen, Y.-C., Lee, Y.-J., Behera, P., Meier, F., Merola, M., Metzner, F., Miyabayashi, K., Mohanty, G. B., Moon, T. J., Mussa, R., Nakao, M., Natochii, A., Nayak, L., Belous, K., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Pakhlova, G., Pang, T., Pardi, S., Park, S.-H., Patra, S., Bennett, J., Paul, S., Pedlar, T. K., Piilonen, L. E., Podobnik, T., Prencipe, E., Prim, M. T., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Bessner, M., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seidl, R., Seino, Y., Sevior, M. E., Shapkin, M., Bilka, T., Shiu, J.-G., Singh, J. B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumisawa, K., Sutcliffe, W., Takizawa, M., Bodrov, D., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Van Tonder, R., Varner, G., Borah, J., Vinokurova, A., Vossen, A., Waheed, E., Wang, C. H., Wang, D., Wang, E., Wang, X. L., Watanuki, S., Won, E., Yan, W., Bračko, M., Yang, S. B., Ye, H., Yelton, J., Zhai, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Branchini, P., Browder, T. E., Chang, P., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chekelian, V., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Adachi, I., 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., Aihara, H., Dossett, D., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Giri, A., Goldenzweig, P., Gu, T., Gudkova, K., Said, S. Al, Hadjivasiliou, C., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Asner, D. M., 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., Aushev, T., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kumar, M., Kumar, R., Ayad, 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., Babu, V., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Lin, C.-W., Liventsev, D., Martini, A., Masuda, M., Matsuda, T., Matvienko, D., 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., Bracko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Cervenkov, 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., Kodys, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Krizan, 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., Staric, 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., and Zhukova, V.
Subjects: correlation: two-particle, correlation [hadron], anisotropy [angular distribution], FOS: Physical sciences, BELLE, annihilation [electron positron], 12.38.Mh, electron positron: annihilation, jet: correlation, event shape analysis, High Energy Physics - Experiment, rapidity dependence, charged particle: multiplicity, High Energy Physics - Experiment (hep-ex), triangular flow, KEK-B, multiplicity [charged particle], angular distribution: anisotropy, ddc:530, thrust, correlation function, electron: beam, Nuclear Experiment, two-particle [correlation], two-particle [angular correlation], angular correlation: two-particle, correlation [jet], Physics, elliptic flow, 12.38.-t, 25.75.-q, Monte Carlo [numerical calculations], electron positron: colliding beams, multiplicity: dependence, gluon, collective phenomena, beam [electron], dependence [multiplicity], hadron: correlation, colliding beams [electron positron], High Energy Physics::Experiment, numerical calculations: Monte Carlo, experimental results
Abstract: Physical review letters 128(14), 142005 (2022). doi:10.1103/PhysRevLett.128.142005, 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., Published by APS, College Park, Md.
Published: 2022
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3. Journal of High Energy Physics

Author: Inami, K., Hayasaka, K., Bahinipati, S., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, T. J., Behera, P., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Bessner, M., Pakhlov, P., Pakhlova, G., Pardi, S., Park, S.-H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Bhuyan, B., Prencipe, E., Prim, M. T., Rabusov, A., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Bilka, T., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Biswal, J., Shiu, J.-G., Shwartz, B., Simon, F., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumisawa, K., Sutcliffe, W., Takizawa, M., Bobrov, A., Tamponi, U., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uno, S., Ushiroda, Y., Van Tonder, R., Bonvicini, G., Varner, G., Vinokurova, A., Wang, C. H., Wang, E., Wang, P., Watanabe, M., Watanuki, S., Won, E., Xu, X., Yabsley, B. D., Bozek, A., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Bračko, M., Adachi, I., Browder, T. E., Campajola, M., Červenkov, D., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, Y., Choudhury, S., Cinabro, D., Aihara, H., Cunliffe, S., Das, S., De Nardo, G., Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Dubey, S., Eidelman, S., Epifanov, D., Said, S. Al, Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Greenwald, D., Asner, D. M., Gudkova, K., Hadjivasiliou, C., Hartbrich, O., Hayashii, H., Hedges, M. T., Hou, W.-S., Hsu, C.-L., Iijima, T., Inguglia, G., Ishikawa, A., Aulchenko, V., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Jin, Y., Joo, C. W., Joo, K. K., Kato, Y., Kawasaki, T., Aushev, T., 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., Ayad, R., Korpar, S., Križan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, M., Kumar, R., Kumara, K., Kwon, Y.-J., Lalwani, K., Babu, V., Lange, J. S., Lee, S. C., Li, C. H., Li, J., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Liventsev, D., and MacQueen, C.
Subjects: data analysis method, cp-violation, Nuclear and High Energy Physics, Upsilon(10570): electroproduction, lepton, e+-e− Experiments, BELLE, annihilation [electron positron], electron positron: annihilation, tau physics, High Energy Physics - Experiment, KEK-B, electric moment [tau], ddc:530, model, tau: electric moment, Physics, electron positron: colliding beams, sensitivity, simulation, (+)-e(-) experiments, electroproduction [Upsilon(10570)], colliding beams [electron positron], identification, High Energy Physics::Experiment, dipole, experimental results
Abstract: Journal of high energy physics 04(4), 110 (2022). doi:10.1007/JHEP04(2022)110, We report a measurement of the electric dipole moment of the $τ$ lepton $(d_{τ})$ using an 833 fb$^{−1}$ data sample collected near the $Υ(4S)$ resonance, with the Belle detector at the KEKB asymmetric-energy e$^{+}$e$^{−}$ collider. Using an optimal observable method, we obtain the real and imaginary parts of $d_{τ}$ as Re(d$_{τ}$) = (−0.62 ± 0.63) × 10$^{−17}$ecm and Im($d_{τ}$) = (−0.40 ± 0.32) × 10$^{−17}$ecm, respectively. These results are consistent with null electric dipole moment at the present level of experimental sensitivity and improve the sensitivity by about a factor of three.[graphic not available: see fulltext], Published by SISSA, [Trieste]
Published: 2022
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4. Study of γγ→γψ(2S) at Belle

Author: Wang, X. L., Gao, B. S., Ayad, R., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Babu, V., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mrvar, M., Mussa, R., Nakao, M., Natkaniec, Z., Bahinipati, S., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Behera, P., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Bhardwaj, V., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Bhuyan, B., Sahoo, D., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Bilka, T., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Stanič, S., Biswal, J., Starič, M., Stottler, Z. S., Sumihama, M., Takizawa, M., Tamponi, U., Tenchini, F., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Bobrov, A., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Wang, P., Bonvicini, G., Watanabe, M., Watanuki, S., Werbycka, O., Won, E., Xu, X., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Zhu, W. J., Bozek, A., Zhang, Z. P., Zhilich, V., Zhukova, V., Bračko, M., Campajola, M., Červenkov, D., Chang, M.-C., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Adachi, I., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., De Nardo, G., Dhamija, R., Di Capua, F., Aihara, H., Doležal, Z., Dong, T. V., Eidelman, S., Ferber, T., Ferlewicz, D., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Al Said, S., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Hadjivasiliou, C., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Asner, D. M., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Atmacan, H., Jin, Y., Joo, C. W., Joo, K. K., Kahn, J., Kang, K. H., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Aulchenko, V., Kim, Y.-K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Aushev, T., Kumar, M., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., and Lewis, P.
Subjects: ddc:530
Abstract: Using 980 fb−1 of data at and around the Υ(nS) (n=1, 2, 3, 4, 5) resonances collected with the Belle detector at the KEKB asymmetric-energy e+e− collider, the two-photon process γγ→γψ(2S) is studied from the threshold to 4.2 GeV for the first time. Two structures are seen in the invariant mass distribution of γψ(2S): one at MR1=3922.4±6.5±2.0 MeV/c2 with a width of ΓR1=22±17±4 MeV, and another at MR2=4014.3±4.0±1.5 MeV/c2 with a width of ΓR2=4±11±6 MeV; the signals are parametrized with the incoherent sum of two Breit-Wigner functions. The first structure is consistent with the X(3915) or the χc2(3930), and the local statistical significance is determined to be 3.1σ with the systematic uncertainties included. The second matches none of the known charmonium or charmoniumlike states, and its global significance is determined to be 2.8σ including the look-elsewhere effect. The production rates are ΓγγB(R1→γψ(2S))=9.8±3.6±1.3 eV assuming (JPC,|λ|)=(0++,0) or 2.0±0.7±0.2 eV with (2++,2) for the first structure and ΓγγB(R2→γψ(2S))=6.2±2.2±0.8 eV with (0++,0) or 1.2±0.4±0.2 eV with (2++,2) for the second. Here, the first errors are statistical and the second systematic, and λ is the helicity.
Published: 2022

5. Measurement of the branching fractions of the B⁺ → ηℓ⁺νℓ and B⁺ → η′ℓ⁺νℓ decays with signal-side only reconstruction in the full q² range

Author: Collaboration, Belle, Gebauer, U., Beleño, C., Frey, A., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., 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., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, M.-C., 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., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., 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., Joo, C. W., Joo, K. K., Kahn, J., Kaliyar, A. B., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Kim, Y.-K., 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., Lewis, P., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mrvar, M., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., 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., Purohit, M. V., 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., Shiu, J.-G., Shwartz, B., Simon, F., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Van Tonder, R., Varner, G., Varvell, K. E., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanuki, S., Wiechczynski, J., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Published: 2022

6. Measurement of the branching fraction and CP asymmetry for B→¯D0π decays

Author: Bloomfield, T., Sevior, M. E., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bennett, J., Bessner, M., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, M.C., 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., Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Dubey, S., Eidelman, S., Epifanov, D., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Hadjivasiliou, C., Halder, S., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hernandez Villanueva, M., Hou, W.S., Hsu, C.L., Iijima, T., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.J., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Kaliyar, A. B., Kang, K. H., Karyan, G., Kawasaki, T., Kim, C. H., Kim, D. Y., Kim, H. J., Kim, S. H., Kim, Y.K., Kimmel, T. D., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kumar, M., Kumar, R., Kumara, K., Kwon, Y.J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Li, C. H., Li, J., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S.H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uno, K., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vossen, A., Waheed, E., Wang, C. H., Wang, E., Wang, M.Z., Wang, P., Watanabe, M., Watanuki, S., Werbycka, O., Wiechczynski, J., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: ddc:530
Abstract: We measure the branching fractions and CP asymmetries for the decays B0→D¯0π0 and B+→D¯0π+, using a data sample of 772×106 BB¯ pairs collected at the ϒ(4S) resonance with the Belle detector at the KEKB e+e− collider. The branching fractions obtained and direct CP asymmetries are B(B0→D¯0π0)=[2.70±0.06(stat)±0.10(syst)]×10−4, B(B+→D¯0π+)=[4.53±0.02(stat)±0.15(syst)]×10−3, ACP(B0→D¯0π0)=[+0.42±2.05(stat)±1.22(syst)]%, and ACP(B+→D¯0π+)=[+0.19±0.36(stat)±0.57(syst)]%. The measurements of B are the most precise to date and are in good agreement with previous results, as is the measurement of ACP(B+→D¯0π+). The measurement of ACP for B0→D¯0π0 is the first for this mode, and the value is consistent with Standard Model expectations.
Published: 2022

7. Study of $\overline{B}$$^{0}$ →D$^{+}$h$^{–}$ (h=K/π) decays at Belle

Author: Waheed, E., Urquijo, P., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Bahinipati, S., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bodrov, D., Borah, J., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., 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., 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., Gu, T., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., 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., Joo, K. K., Kaliyar, A. B., Kang, K. H., Kichimi, H., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, K. T., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., KriŽan, P., Kroeger, R., Krokovny, P., Kumar, M., Kumar, R., Kumara, K., Kwon, Y.-J., Lai, Y.-T., Lange, J. S., Laurenza, M., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Macqueen, C., Masuda, M., Matsuda, T., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mussa, R., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Park, H., Park, S.-H., Passeri, A., 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., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Wang, X. L., Wiechczynski, J., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Abstract: We present a measurement of the branching fractions of the Cabibbo favored $\overline{B}$$^{0}$ →D$^{+}$π$^{–}$ and the Cabibbo suppressed $\overline{B}$$^{0}$ →D$^{+}$K$^{–}$ decays. We find B($\overline{B}$$^{0}$ →D$^{+}$π$^{–}$)=(2.48±0.01±0.09±0.04)×10$^{–3}$ and B($\overline{B}$$^{0}$ →D$^{+}$K$^{–}$)=(2.03±0.05±0.07±0.03)×10$^{–4}$ decays, where the first uncertainty is statistical, the second is systematic, and the third uncertainty is due to the D$^{+}$→K$^{–}$ π$^{+}$π$^{–}$ branching fraction. The ratio of branching fractions of $\overline{B}$$^{0}$ →D$^{+}$K$^{–}$ and $\overline{B}$$^{0}$ →D$^{+}$π$^{–}$ is measured to be R$^{D}$=[8.19±0.20(stat)±0.23(syst)]×10$^{–2}$. These measurements are performed using the full Belle dataset, which corresponds to 772×10$^{6}$ B$\overline{B}$ pairs and use the Belle II software framework for data analysis.
Published: 2022

8. Search for the radiative penguin decays B0→K0SK0Sγ in the Belle experiment

Author: Jeon, H. B., Kang, K. H., Babu, V., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lai, Y.-T., Lalwani, K., Lam, T., Bahinipati, S., Lange, J. S., Laurenza, M., Lee, S. C., Li, C. H., Li, J., Li, Y., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Behera, P., Liventsev, D., Martini, A., Masuda, M., Matsuda, T., Matvienko, D., Maurya, S. K., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Belous, K., Mohanty, G. B., Nakao, M., Narwal, D., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, K., Bennett, J., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, S.-H., Passeri, A., Bernlochner, F., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Purohit, M. V., Bessner, M., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Bhardwaj, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shebalin, V., Shen, C. P., Shiu, J.-G., Bhuyan, B., Singh, J. B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Bilka, T., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Park, H., Bobrov, A., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Watanuki, S., Won, E., Yabsley, B. D., Bodrov, D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhai, Y., Zhang, Z. P., Zhilich, V., Borah, J., Zhukova, V., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Adachi, I., Chang, M.-C., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Aihara, H., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Al Said, S., Dong, T. V., Epifanov, D., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Asner, D. M., Golob, B., Graziani, E., Gu, T., Gudkova, K., Hadjivasiliou, C., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Atmacan, H., Hou, W.-S., Hsu, C.-L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Aushev, T., Jia, S., Jin, Y., Joo, K. K., Kahn, J., Kakuno, H., Kaliyar, A. B., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Ayad, R., Kim, K.-H., Kim, K. T., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., and Križan, P.
Subjects: ddc:530
Abstract: We report results from the first search for the rare penguin-dominated decay mode B0→K0SK0Sγ, which can result from the production of tensor mesons f(1270) and f′(1525) in association with a photon. The search uses the full data sample of 772×106 B¯B pairs collected with the Belle detector at the KEKB asymmetric-energy e+e− collider. No statistically significant signals are observed in the K0SK0S invariant mass range 1 GeV/c2
Published: 2022

9. First test of lepton flavor universality in the charmed baryon decays Ω$^{0}$$_{c}$ → Ω$^{-}$ℓ$^{+}$ν$_{ℓ}$ using data of the Belle experiment

Author: Collaboration, Belle, Li, Y. B., Shen, C. P., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Belous, K., Bennett, J., Bernlochner, F., Bessner, M., Bhuyan, B., Bilka, T., Bobrov, A., Bodrov, D., 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., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Golob, B., Graziani, E., 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., Jia, S., Jin, Y., Joo, K. K., Kahn, J., Kang, K. H., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, K. T., Kim, Y.-K., Kinoshita, 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., Lalwani, K., Lam, T., Laurenza, M., Lee, S. C., Li, J., Li, L. K., Li, Y., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Martini, A., Masuda, M., Matvienko, D., Maurya, S. K., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Nakao, M., Narwal, D., 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, 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., 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., Starič, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., 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., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhai, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Abstract: We present the first observation of the Ω0c→Ω−μ+νμ decay and present measurements of the branching fraction ratios of the Ω0c→Ω−ℓ+νℓ decays compared to the reference mode Ω0c→Ω−π+, (ℓ=e or μ). This analysis is based on 89.5 fb−1, 711 fb−1, and 121.1 fb−1 data samples collected with the Belle detector at the KEKB asymmetric-energy e+e− collider at the center-of-mass energies of 10.52 GeV, 10.58 GeV, and 10.86 GeV, respectively. The Ω0c signal yields are extracted by fitting MΩℓ and MΩπ spectra. The branching fraction ratios B(Ω0c→Ω−e+νe)/B(Ω0c→Ω−π+) and B(Ω0c→Ω−μ+νμ)/B(Ω0c→Ω−π+) are measured to be 1.98±0.13(stat)±0.08(syst) and 1.94±0.18(stat)±0.10(syst), respectively. The ratio of B(Ω0c→Ω−e+νe)/B(Ω0c→Ω−μ+νμ) is measured to be 1.02±0.10(stat)±0.02(syst), which is consistent with the expectation of lepton flavor universality.
Published: 2022

10. Measurements of the branching fractions of Ξ$^{0}$$_{c}$→ΛK$^{0}$$_{S}$, Ξ$^{0}$$_{c}$→Σ$^{0}$K$^{0}$$_{S}$, and Ξ$^{0}$$_{c}$→Σ$^{+}$K$^{-}$ decays at Belle

Author: Belle Collaboration, Li, Y., Cui, J. X., Jia, S., Shen, C. P., Adachi, I., Ahn, J. K., Aihara, H., Al Said, S., 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., Bobrov, A., Bodrov, D., Bonvicini, G., Borah, J., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., 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., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Dossett, D., Epifanov, D., Ferber, T., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Gu, T., Gudkova, K., Hadjivasiliou, C., Halder, S., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W.-S., Hsu, C.-L., Iijima, T., 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., Kawasaki, T., 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., Kroeger, R., Krokovny, P., Kuhr, T., 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, C. H., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Martini, A., Masuda, M., Matsuda, T., Matvienko, D., Meier, F., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., 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., Popov, V., 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., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shiu, J.-G., Shwartz, B., Singh, J. B., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Unno, Y., Uno, K., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Waheed, E., Wang, E., Wang, M.-Z., Watanabe, M., Watanuki, S., Werbycka, O., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yuan, C. Z., Zhai, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Published: 2022

11. Search for the radiative penguin decays $B^0 → K_S^0 K_S^0 γ$ in the Belle experiment

Author: Jeon, H. B., Kang, K. H., Babu, V., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lai, Y.-T., Lalwani, K., Lam, T., Bahinipati, S., Lange, J. S., Laurenza, M., Lee, S. C., Li, C. H., Li, J., Li, Y., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Behera, P., Liventsev, D., Martini, A., Masuda, M., Matsuda, T., Matvienko, D., Maurya, S. K., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Belous, K., Mohanty, G. B., Nakao, M., Narwal, D., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, K., Bennett, J., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, S.-H., Passeri, A., Bernlochner, F., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Purohit, M. V., Bessner, M., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Bhardwaj, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shebalin, V., Shen, C. P., Shiu, J.-G., Bhuyan, B., Singh, J. B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Bilka, T., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Park, H., Bobrov, A., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Watanuki, S., Won, E., Yabsley, B. D., Bodrov, D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhai, Y., Zhang, Z. P., Zhilich, V., Borah, J., Zhukova, V., Belle Collaboration, Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Adachi, I., Chang, M.-C., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Aihara, H., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Al Said, S., Dong, T. V., Epifanov, D., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Asner, D. M., Golob, B., Graziani, E., Gu, T., Gudkova, K., Hadjivasiliou, C., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Atmacan, H., Hou, W.-S., Hsu, C.-L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Aushev, T., Jia, S., Jin, Y., Joo, K. K., Kahn, J., Kakuno, H., Kaliyar, A. B., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Ayad, R., Kim, K.-H., Kim, K. T., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., and Križan, P.
Subjects: branching ratio: upper limit, production [tensor meson], B0: branching ratio, BELLE, annihilation [electron positron], electron positron: annihilation, K0(S): pair production, decay modes, KEK-B, radiative decay [B0], branching ratio [B0], ddc:530, pair production [K0(S)], tensor meson: production, penguin, B0: rare decay, electron positron: colliding beams, mass dependence, photon: associated production, rare decay [B0], associated production [photon], colliding beams [electron positron], upper limit [branching ratio], +2K0%28S%29+photon%22">B0 --> 2K0(S) photon, B0: radiative decay, experimental results
Abstract: Physical review / D 106(1), 012006 (2022). doi:10.1103/PhysRevD.106.012006, We report results from the first search for the rare penguin-dominated decay mode $B^0 → K_S^0 K_S^0 γ$, which can result from the production of tensor mesons $f(1270)$ and $f′(1525)$ in association with a photon. The search uses the full data sample of $772 × 10^6 B\bar{B}$ pairs collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. No statistically significant signals are observed in the $K_S^0 K_S^0$ invariant mass range $1 GeV/c^2 < M_{K^0_S K_S^0} < 3$ $GeV/c^2$, and the following upper limits at the 90% confidence level are obtained: $\mathcal{B}(B^0 → K_S^0 K_S^0 γ) < 5.8 × 10^{-7}$, $\mathcal{B}(B^0 → f_2 γ)$ $× \mathcal{B}(f_2 (1270) → K_S^0 K_S^0) < 3.1 × 10^{-7}$, and $\mathcal{B}(B^0 → f_{2}′γ) ×\mathcal{B} (f_{2}′(1525) → K_S^0 K_S^0) < 2.1 × 10^{-7}$. In addition, 90% confidence-level upper limits in the range of $[0.7–2.9] × 10^{-7}$ are also obtained on the $B^0 → K_S^0 K_S^0 γ$ branching fraction in bins of $M_{K_S^0 K_S^0}$., Published by Inst., Melville, NY
Published: 2022

12. Study of ̄B0 → D + h − ðh = K=πÞ decays at Belle

Author: Waheed, E., Urquijo, P., Behera, P., Lai, Y.-T., Lange, J. S., Laurenza, M., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Belous, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mussa, R., Bennett, J., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Oskin, P., Bessner, M., Pakhlov, P., Pakhlova, G., Pang, T., Park, H., Park, S.-H., Passeri, A., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Bhardwaj, V., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Bhuyan, B., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Bilka, T., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Biswal, J., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Bobrov, A., Uglov, T., Unno, Y., Uno, K., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Bodrov, D., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Wang, X. L., Wiechczynski, J., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Adachi, I., Borah, J., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., Aihara, H., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Al Said, S., Cunliffe, S., Das, S., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Epifanov, D., Ferber, T., Asner, D. M., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Golob, B., Graziani, E., Gu, T., Atmacan, H., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Iijima, T., Aulchenko, V., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Kaliyar, A. B., Aushev, T., Kang, K. H., Kichimi, H., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, K. T., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Bahinipati, S., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kumar, M., Kumar, R., Kumara, K., and Kwon, Y.-J.
Subjects: ddc:530
Abstract: We present a measurement of the branching fractions of the Cabibbo favored ̄B0 → Dþπ− and theCabibbo suppressed ̄B0 → DþK− decays. We find Bð ̄B0 → Dþπ−Þ ¼ ð2.48 0.01 0.09 0.04Þ ×10−3 and Bð ̄B0 → DþK−Þ ¼ ð2.03 0.05 0.07 0.03Þ × 10−4 decays, where the first uncertainty isstatistical, the second is systematic, and the third uncertainty is due to the Dþ → K−πþπþ branchingfraction. The ratio of branching fractions of ̄B0 → DþK− and ̄B0 → Dþπ− is measured to beR D ¼ ½8.19 0.20ðstatÞ 0.23ðsystÞ × 10−2. These measurements are performed using the full Belledataset, which corresponds to 772 × 10 6B ̄B pairs and use the Belle II software framework for data analysis.
Published: 2022

13. First test of lepton flavor universality in the charmed baryon decays Ωc0→Ω-ℓ+νℓ using data of the Belle experiment

Author: Li, Y. B., Shen, C. P., Bahinipati, S., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Lam, T., Laurenza, M., Lee, S. C., Li, J., Li, L. K., Li, Y., Li Gioi, L., Behera, P., Libby, J., Lieret, K., Liventsev, D., Martini, A., Masuda, M., Matvienko, D., Maurya, S. K., Merola, M., Miyabayashi, K., Mizuk, R., Belous, K., Mohanty, G. B., Nakao, M., Narwal, D., Natochii, A., Nayak, L., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Bennett, J., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Bernlochner, F., Pestotnik, R., Piilonen, L. E., Podobnik, T., Prencipe, E., Prim, M. T., Rohrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Bessner, M., Sandilya, S., Sangal, A., Santelj, L., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Bhuyan, B., Shapkin, M., Sharma, C., Shebalin, V., Shiu, J.-G., Shwartz, B., Singh, J. B., Sokolov, A., Solovieva, E., Staric, M., Stottler, Z. S., Bilka, T., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, K., Bobrov, A., Uno, S., Urquijo, P., Vahsen, S. E., Van Tonder, R., Varner, G., Vinokurova, A., Waheed, E., Wang, D., Wang, E., Wang, M.-Z., Bodrov, D., Watanuki, S., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Adachi, I., Borah, J., Yusa, Y., Zhai, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Bozek, A., Bracko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Cervenkov, D., Chang, M.-C., Chang, P., Aihara, H., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Choudhury, S., Said, S. Al, Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Dolezal, Z., Dong, T. V., Asner, D. M., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Golob, B., Graziani, E., Atmacan, H., Gudkova, K., Hadjivasiliou, C., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W.-S., Inami, K., Inguglia, G., Ishikawa, A., Aushev, T., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, K. K., Kahn, J., Kang, K. H., Ayad, R., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, K. T., Kim, Y.-K., Kinoshita, K., Kodys, P., Babu, V., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Krizan, P., Kroeger, R., Krokovny, P., Kumar, M., Kumar, R., and Kumara, K.
Subjects: Omega, +Omega-+positron+neutrino%2Fe%22">Omega/c0 --> Omega- positron neutrino/e, Omega/c0: semileptonic decay, BELLE, annihilation [electron positron], electron positron: annihilation, lepton: flavor, KEK-B, decay [charmed baryon], Omega/c0: electroproduction, flavor [lepton], +Omega-+muon%2B+neutrino%2Fmu%22">Omega/c0 --> Omega- muon+ neutrino/mu, ddc:530, Omega/c0: branching ratio, electroproduction [Omega/c0], branching ratio: ratio: measured, electron positron: colliding beams, branching ratio [Omega/c0], universality [flavor], flavor: universality, charmed baryon: decay, colliding beams [electron positron], semileptonic decay [Omega/c0], ratio: measured [branching ratio], experimental results
Abstract: Physical review / D 105(9), L091101 (2022). doi:10.1103/PhysRevD.105.L091101, We present the first observation of the Ωc0→Ω-μ+νμ decay and present measurements of the branching fraction ratios of the Ωc0→Ω-ℓ+νℓ decays compared to the reference mode Ωc0→Ω-π+, (ℓ=e or μ). This analysis is based on 89.5 fb-1, 711 fb-1, and 121.1 fb-1 data samples collected with the Belle detector at the KEKB asymmetric-energy e+e- collider at the center-of-mass energies of 10.52 GeV, 10.58 GeV, and 10.86 GeV, respectively. The Ωc0 signal yields are extracted by fitting MΩℓ and MΩπ spectra. The branching fraction ratios B(Ωc0→Ω-e+νe)/B(Ωc0→Ω-π+) and B(Ωc0→Ω-μ+νμ)/B(Ωc0→Ω-π+) are measured to be 1.98±0.13(stat)±0.08(syst) and 1.94±0.18(stat)±0.10(syst), respectively. The ratio of B(Ωc0→Ω-e+νe)/B(Ωc0→Ω-μ+νμ) is measured to be 1.02±0.10(stat)±0.02(syst), which is consistent with the expectation of lepton flavor universality., Published by Inst., Woodbury, NY
Published: 2022

14. Search for a Light Higgs Boson in Single-Photon Decays of $\Upsilon(1S)$ using $\Upsilon(2S) \to \pi^+ \pi^- \Upsilon(1S)$ Tagging Method

Author: 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., and Zhukova, V.
Subjects: energy, asymmetry, Yukawa [coupling], asymmetry [energy], Upsilon(10020): hadronic decay, annihilation [electron positron], GeV, +pi%2B+pi-+Upsilon%289460%29%22">Upsilon(10020) --> pi+ pi- Upsilon(9460), electron positron: energy, channel cross section: upper limit, High Energy Physics - Experiment, +Higgs+particle+photon%22">Upsilon(9460) --> Higgs particle photon, (muon+ muon-) [mass spectrum], tau: pair production, upper limit [channel cross section], radiative decay, energy [electron positron], hep-ph, electron positron, energy, electron positron: colliding beams, upper limit [coupling constant], muon: pair production, High Energy Physics - Phenomenology, (tau+ tau-) [mass spectrum], pair production [tau], Higgs particle: mass, colliding beams [electron positron], mass spectrum: (tau+ tau-), branching ratio, energy: asymmetry, Particle Physics - Experiment, Upsilon(9460): radiative decay, radiative decay [Upsilon(9460)], mixing angle, hadronic decay [Upsilon(10020)], BELLE, coupling constant: upper limit, Higgs particle, electron positron: annihilation, meson, KEK-B, ddc:530, pair production [muon], Higgs particle: leptonic decay, Particle Physics - Phenomenology, leptonic decay [Higgs particle], hep-ex, mass [Higgs particle], Upsilon(10020), mass spectrum: (muon+ muon-), coupling, Yukawa, High Energy Physics::Experiment, Upsilon(9460), coupling: Yukawa, experimental results
Abstract: Physical review letters 128(8), 081804 (2022). doi:10.1103/PhysRevLett.128.081804, We search for a light Higgs boson ($A^0$) decaying into a $\tau^+\tau^-$ or $\mu^+\mu^-$ pair in the radiative decays of $\Upsilon(1S)$. The production of $\Upsilon(1S)$ mesons is tagged by $\Upsilon(2S)\to \pi^+ \pi^- \Upsilon(1S)$ transitions, using 158 million $\Upsilon(2S)$ 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 $\tau^+\tau^-$ or $\mu^+\mu^-$ 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 $\Upsilon(1S)\to \gamma A^0$ and $A^0\to \tau^+\tau^-$ varying from $3.8\times10^{-6}$ to $1.5\times10^{-4}$. Our results represent an approximately twofold improvement on the current world best upper limits for the $\Upsilon(1S)\to \gamma A^0(\to \tau^+\tau^-)$ production. For $A^0\to \mu^+\mu^-$, the upper limits on the product branching fractions for $\Upsilon(1S)\to \gamma A^0$ and $A^0\to \mu^+\mu^-$ are at the same level as the world average limits, and vary from $3.1\times10^{-7}$ to $1.6\times10^{-5}$. The upper limits at 90% C.L. on the Yukawa coupling $f_{\Upsilon(1S)}$ and mixing angle ${\rm sin}\theta_{A^0}$ are also given., Published by APS, College Park, Md.
Published: 2022
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15. Search for the radiative penguin decays $B^{0}$$\rightarrow$$K_{S}^{0}$$K_{S}^{0}$$\gamma$ in the Belle experiment

Author: Jeon, H. B., Kang, K. H., Park, H., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Belous, K., Bennett, J., Bernlochner, F., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Bobrov, A., Bodrov, D., Borah, J., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., 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 Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., 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., Gu, T., Gudkova, K., Hadjivasiliou, C., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Hou, W.-S., Hsu, C.-L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, K. K., Kahn, J., Kakuno, H., Kaliyar, A. B., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, K. T., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumara, K., Kumar, M., Kuzmin, A., Kwon, Y.-J., Lai, Y.-T., Lalwani, K., Lam, T., Lange, J. S., Laurenza, M., Lee, S. C., Li, C. H., Li, J., 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., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Nakao, M., Narwal, D., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, S.-H., Passeri, A., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Purohit, M. V., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shebalin, V., Shen, C. P., Shiu, J.-G., Singh, J. B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Watanuki, S., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhai, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: ddc:530
Abstract: Physical review / D 106(1), 012006 (2022). doi:10.1103/PhysRevD.106.012006, We report results from the first search for the rare penguin-dominated decay mode B0→K0SK0Sγ, which can result from the production of tensor mesons f(1270) and f′(1525) in association with a photon. The search uses the full data sample of 772×106 B¯B pairs collected with the Belle detector at the KEKB asymmetric-energy e+e− collider. No statistically significant signals are observed in the K0SK0S invariant mass range 1 GeV/c2, Published by IOP, Melville, NY
Published: 2022
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16. Measurements of the branching fractions of $\Xi_c^0 \to \Lambda K_S^0$, $\Xi_c^0 \to \Sigma^0 K_S^0$, and $\Xi_c^0 \to \Sigma^+ K^-$ decays at Belle

Author: Belle collaboration, Li, Y., Cui, J. X., Jia, S., Shen, C. P., Adachi, I., Ahn, J. K., Aihara, H., Said, S. Al, 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., Bobrov, A., Bodrov, D., Bonvicini, G., Borah, J., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M. C., Chang, P., 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., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Dossett, D., Epifanov, D., Ferber, T., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Gu, T., Gudkova, K., Hadjivasiliou, C., Halder, S., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W. S., Hsu, C. -L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., obs, W. W. Ja, Jang, E. J., Jin, Y., Joo, K. K., Kahn, J., Kaliyar, A. B., Kawasaki, T., 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., Kroeger, R., Krokovny, P., Kuhr, T., 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, C. H., Li, J., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., Martini, A., Masuda, M., Matsuda, T., Matvienko, D., Meier, F., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., 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., Popov, V., 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., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shiu, J. -G., Shwartz, B., Singh, J. B., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Unno, Y., Uno, K., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Waheed, E., Wang, E., Wang, M. Z., Watanabe, M., Watanuki, S., Werbycka, O., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yuan, C. Z., Zhai, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: decay modes [Xi/c], BELLE, +Lambda+K0%28S%29%22">Xi/c0 --> Lambda K0(S), annihilation [electron positron], electron positron: annihilation, +Sigma%2B+K%22">Xi/c0 --> Sigma+ K, High Energy Physics - Experiment, Xi/c: hadronic decay, KEK-B, ddc:530, Lambda, Xi/c: decay modes, branching ratio: ratio: measured, branching ratio, ratio, statistical [error], +Sigma0+K0%28S%29%22">Xi/c0 --> Sigma0 K0(S), electron positron: colliding beams, Xi/c: branching ratio: measured, branching ratio, measured, Sigma, hadronic decay [Xi/c], error: statistical, High Energy Physics - Phenomenology, K0(S), colliding beams [electron positron], branching ratio: measured [Xi/c], ratio: measured [branching ratio], statistical, experimental results
Abstract: Physical review / D 105(1), L011102 (2022). doi:10.1103/PhysRevD.105.L011102, Using the entire data sample of 980~fb$^{-1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, we present measurements of the branching fractions of the Cabibbo-favored decays $\Xi_c^0 \to \Lambda K_S^0$, $\Xi_c^0 \to \Sigma^0 K_S^0$, and $\Xi_c^0 \to \Sigma^+ K^-$. Taking the decay $\Xi_c^0 \to \Xi^- \pi^+$ as the normalization mode, we measure the branching fraction ratio ${\cal B}(\Xi_c^0 \to \Lambda K_S^0)/{\cal B}(\Xi_c^0 \to \Xi^- \pi^+) = 0.229\pm0.008\pm0.012$ with improved precision, and measure the branching fraction ratios ${\cal B}(\Xi_c^0 \to \Sigma^0 K_S^0)/{\cal B}(\Xi_c^0 \to \Xi^- \pi^+) = 0.038\pm0.006\pm0.004$ and ${\cal B}(\Xi_c^0 \to \Sigma^+ K^-)/{\cal B}(\Xi_c^0 \to \Xi^- \pi^+) = 0.123\pm0.007\pm0.010$ for the first time. Taking into account the previously measured branching fraction ${\cal B}(\Xi_c^0 \to \Xi^- \pi^+) = (1.80\pm0.52)\%$, the absolute branching fractions are determined to be ${\cal B}(\Xi_c^0 \to \Lambda K_S^0) = (4.12\pm 0.14\pm0.21\pm1.19) \times 10^{-3}$, ${\cal B}(\Xi_c^0 \to \Sigma^0 K_S^0) = (0.69\pm 0.10\pm 0.08\pm 0.20) \times 10^{-3}$, and ${\cal B}(\Xi_c^0 \to \Sigma^+ K^-) = (2.21\pm 0.13\pm0.19\pm 0.64) \times 10^{-3}$. The first and second uncertainties above are statistical and systematic, respectively, while the third ones arise from the uncertainty of the branching fraction of $\Xi_c^0 \to \Xi^- \pi^+$., Published by Inst., Woodbury, NY
Published: 2022
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17. Study of γ γ → γ ψ (2 S) at Belle

Author: Collaboration, Belle, Wang, X. L., Gao, B. S., Zhu, W. J., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Campajola, M., Červenkov, D., Chang, M.-C., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., De Nardo, G., Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Eidelman, S., Ferber, T., Ferlewicz, D., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Hadjivasiliou, C., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., 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., Joo, C. W., Joo, K. K., Kahn, J., Kang, K. H., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Kim, Y.-K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, M., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Lewis, P., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mrvar, M., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Park, S.-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., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Sumihama, M., Takizawa, M., Tamponi, U., Tenchini, F., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Wang, P., Watanabe, M., Watanuki, S., Werbycka, O., Won, E., Xu, X., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Published: 2022

18. Measurement of the branching fraction and CP asymmetry for B → $\bar{D}$⁰π decays

Author: Collaboration, Belle, Bloomfield, T., Sevior, M. E., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bennett, J., Bessner, M., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, M.-C., 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., Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Dubey, S., Eidelman, S., Epifanov, D., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Hadjivasiliou, C., Halder, S., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hernandez Villanueva, M., Hou, W.-S., Hsu, C.-L., Iijima, T., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Kaliyar, A. B., Kang, K. H., Karyan, G., Kawasaki, T., Kim, C. H., Kim, D. Y., Kim, H. J., Kim, S. H., Kim, Y.-K., Kimmel, T. D., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kumar, M., Kumar, R., Kumara, K., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Li, C. H., Li, J., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S.-H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uno, K., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vossen, A., Waheed, E., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Watanabe, M., Watanuki, S., Werbycka, O., Wiechczynski, J., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: Physics, ddc:530
Abstract: We measure the branching fractions and CP asymmetries for the decays B0→¯D0π0 and B+→¯D0π+, using a data sample of 772×106 B¯B pairs collected at the Υ(4S) resonance with the Belle detector at the KEKB e+e− collider. The branching fractions obtained and direct CP asymmetries are B(B0→¯D0π0)=[2.70±0.06(stat)±0.10(syst)]×10−4, B(B+→¯D0π+)=[4.53±0.02(stat)±0.15(syst)]×10−3, ACP(B0→¯D0π0)=[+0.42±2.05(stat)±1.22(syst)]%, and ACP(B+→¯D0π+)=[+0.19±0.36(stat)±0.57(syst)]%. The measurements of B are the most precise to date and are in good agreement with previous results, as is the measurement of ACP(B+→¯D0π+). The measurement of ACP for B0→¯D0π0 is the first for this mode, and the value is consistent with Standard Model expectations.
Published: 2022

19. The study of $\gamma\gamma\to\gamma\psi(2S)$ at Belle

Author: Wang, X. L., Gao, B. S., Ayad, R., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Babu, V., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mrvar, M., Mussa, R., Nakao, M., Natkaniec, Z., Bahinipati, S., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Behera, P., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Bhardwaj, V., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Bhuyan, B., Sahoo, D., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Bilka, T., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Stanič, S., Biswal, J., Starič, M., Stottler, Z. S., Sumihama, M., Takizawa, M., Tamponi, U., Tenchini, F., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Bobrov, A., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Wang, P., Bonvicini, G., Watanabe, M., Watanuki, S., Werbycka, O., Won, E., Xu, X., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Zhu, W. J., Bozek, A., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Bračko, M., Campajola, M., Červenkov, D., Chang, M.-C., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Adachi, I., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., De Nardo, G., Dhamija, R., Di Capua, F., Aihara, H., Doležal, Z., Dong, T. V., Eidelman, S., Ferber, T., Ferlewicz, D., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Al Said, S., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Hadjivasiliou, C., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Asner, D. M., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Atmacan, H., Jin, Y., Joo, C. W., Joo, K. K., Kahn, J., Kang, K. H., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Aulchenko, V., Kim, Y.-K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Aushev, T., Kumar, M., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Lewis, P., Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Belle
Subjects: two-photon [exchange], data analysis method, BELLE, annihilation [electron positron], electron positron: annihilation, High Energy Physics - Experiment, width [mass], mass: width, KEK-B, width: upper limit, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, structure, mass spectrum: (photon psi(3685)), branching ratio [width], psi(3685), upper limit [width], exchange: two-photon, 3.7-4.2 GeV-cms, (photon psi(3685)) [mass spectrum], width: branching ratio, statistical [error], electron positron: colliding beams, Breit-Wigner, error: statistical, +photon+psi%283685%29%22">photon photon --> photon psi(3685), colliding beams [electron positron], experimental results
Abstract: Physical review / D 105(11), 112011 (2022). doi:10.1103/PhysRevD.105.112011, Using $980~\rm fb^{-1}$ of data on and around the $\Upsilon(nS)(n=1,2,3,4,5)$ resonances collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, the two-photon process $\gamma\gamma\to \gamma\psi(2S)$ is studied from $\sqrt{s} = 3.7$ to $4.2~{\rm GeV}$ for the first time. Evidence is found for a structure in the invariant mass distribution of $\gamma\psi(2S)$ at $M_1 = 3921.3\pm 2.4 \pm 1.6~{\rm MeV}/c^2$ with a width of $\Gamma_1 = 0.0\pm 5.3 \pm 2.0~{\rm MeV}$ and a significance of $4.0\sigma$ including systematic uncertainties, and another structure is seen at $M_2 = 4014.4\pm 4.1 \pm 0.5~{\rm MeV}/c^2$ with a width of $\Gamma_2 = 6\pm 16 \pm 6~{\rm MeV}$ and a global significance of $2.8\sigma$ including the look-elsewhere effect, if the mass spectrum is parametrized with the incoherent sum of two Breit-Wigner functions. The upper limits of the widths are determined to be $\Gamma_1^{\rm UL} = 11.5~{\rm MeV}$ and $\Gamma_2^{\rm UL} = 39.3~{\rm MeV}$ at 90% confidence level. The production rates are determined to be $\Gamma_{\gamma\gamma}{\cal B}(R_1\to\gamma\psi(2S)) = 8.2\pm 2.3\pm 0.9~{\rm eV}$ assuming $(J^{PC}, |\lambda|) =(0^{++}, 0)$ and $1.6\pm 0.5\pm 0.2~{\rm eV}$ with $(2^{++}, 2)$ for the first structure and $\Gamma_{\gamma\gamma}{\cal B}(R_2\to\gamma\psi(2S)) = 5.3\pm 2.7\pm 2.5~{\rm eV}$ with $(0^{++}, 0)$ and $1.1\pm 0.5\pm 0.5~{\rm eV}$ with $(2^{++}, 2)$ for the second one. Here, the first errors are statistical and the second systematic., Published by Inst., Melville, NY
Published: 2022
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20. Search for the radiative penguin decays B$^{0}$ → K$^{0}$$_{S}$K$^{0}$$_{Sγ}$ in the Belle experiment

Author: Belle Collaboration, Jeon, H. B., Kang, K. H., Park, H., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Belous, K., Bennett, J., Bernlochner, F., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Bobrov, A., Bodrov, D., Borah, J., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., 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 Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., 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., Gu, T., Gudkova, K., Hadjivasiliou, C., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Higuchi, T., Hou, W.-S., Hsu, C.-L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, K. K., Kahn, J., Kakuno, H., Kaliyar, A. B., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, K. T., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lai, Y.-T., Lalwani, K., Lam, T., Lange, J. S., Laurenza, M., Lee, S. C., Li, C. H., Li, J., 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., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Nakao, M., Narwal, D., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, S.-H., Passeri, A., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Purohit, M. V., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shebalin, V., Shen, C. P., Shiu, J.-G., Singh, J. B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Watanuki, S., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhai, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Published: 2022
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21. Measurements of the branching fractions of Ξ0c→ΛK0S, Ξ0c→Σ0K0S, and Ξ0c→Σ+K− decays at Belle

Author: Li, Y., Cui, J. X., Aushev, T., Krokovny, P., Kuhr, T., Kumar, M., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lai, Y.-T., Lam, T., Lange, J. S., Ayad, R., Laurenza, M., Lee, S. C., Li, C. H., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Babu, V., Martini, A., Masuda, M., Matsuda, T., Matvienko, D., Meier, F., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Bahinipati, S., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, K., Behera, P., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, S.-H., Patra, S., Paul, S., Belous, K., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Röhrken, M., Rostomyan, A., Rout, N., Bennett, J., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Bessner, M., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shiu, J.-G., Shwartz, B., Singh, J. B., Sokolov, A., Solovieva, E., Stanič, S., Bhardwaj, V., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Bhuyan, B., Unno, Y., Uno, K., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Waheed, E., Wang, E., Jia, S., Bilka, T., Wang, M.-Z., Watanabe, M., Watanuki, S., Werbycka, O., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Bobrov, A., Yuan, C. Z., Zhai, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Bodrov, D., Bonvicini, G., Borah, J., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Shen, C. P., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Adachi, I., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Ahn, J. K., Dingfelder, J., Doležal, Z., Dong, T. V., Dossett, D., Epifanov, D., Ferber, T., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Aihara, H., Gabyshev, N., Giri, A., Goldenzweig, P., Gu, T., Gudkova, K., Hadjivasiliou, C., Halder, S., Hartbrich, O., Hayasaka, K., Hayashii, H., Al Said, S., Hedges, M. T., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Asner, D. M., Jacobs, W. W., Jang, E.-J., Jin, Y., Joo, K. K., Kahn, J., Kaliyar, A. B., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Atmacan, H., Kim, K.-H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., and Kroeger, R.
Subjects: ddc:530
Abstract: Using the entire data sample of 980 fb−1 collected with the Belle detector at the KEKB asymmetric-energyeþe− collider, we present measurements of the branching fractions of the Cabibbo-favored decays Ξ0c → ΛK0S,Ξ0c → Σ0K0S, and Ξ0c → ΣþK−. Taking the decay Ξ0c → Ξ−πþ as the normalization mode, we measure thebranching fraction ratio BðΞ0c → ΛK0SÞ=BðΞ0c → Ξ−πþ Þ ¼ 0.229 0.008 0.012 with improved precision,and measure the branching fraction ratios BðΞ0c → Σ0K0SÞ=BðΞ0c → Ξ−πþ Þ ¼ 0.038 0.006 0.004and BðΞ0c → ΣþK−Þ=BðΞ0c → Ξ−πþ Þ ¼ 0.123 0.007 0.010 for the first time. Taking intoaccount the branching fraction of the normalization mode, the absolute branching fractions are determinedto be BðΞ0c → ΛK0SÞ ¼ ð3.27 0.11 0.17 0.73Þ × 10−3, BðΞ0c → Σ0K0SÞ ¼ ð0.54 0.09 0.060.12Þ × 10−3, and BðΞ0c → ΣþK−Þ ¼ ð1.76 0.10 0.14 0.39Þ × 10−3. The first and second uncer-tainties above are statistical and systematic, respectively, while the third ones arise from the uncertainty of thebranching fraction of Ξ0c → Ξ−πþ
Published: 2022

22. Search for the decay B0s→ηη

Author: Bhuyan, B., Nath, K. J., Borah, J., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bakich, A. M., Behera, P., Bennett, J., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S.K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Capua, F., Di Carlo, S., Doležal, Z., Dong, T. V., Dubey, S., Eidelman, S., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Haba, J., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.S., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kaliyar, A. B., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kumar, R., Kuzmin, A., Kwon, Y.J., Lange, J. S., Lee, J. K., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Lu, P.C., Luo, T., MacNaughton, J., MacQueen, C., Masuda, M., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakano, T., Nakao, M., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pang, T., Pardi, S., Park, H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J.G., Solovieva, E., Starič, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Vossen, A., Wang, C. H., Wang, M.Z., Wang, P., Wiechczynski, J., Won, E., Yang, S. B., Ye, H., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: 010308 nuclear & particles physics, Physics, 0103 physical sciences, ddc:530, 010306 general physics, 01 natural sciences
Abstract: [EN] We report results from a search for the decay B-s(0) -> eta eta using 121.4 fb(-1) of data collected at the Upsilon(5S) resonance with the Belle detector at the KEKB asymmetric-energy e(+)e(-) collider. We do not observe any signal and set an upper limit on the branching fraction of 14.3 x 10(-5) at 90% confidence level. This result represents a significant improvement over the previous most stringent limit. We thank the KEKB group for the excellent operation of the accelerator; the KEK cryogenics group for the efficient operation of the solenoid; and the KEK computer group, and the Pacific Northwest National Laboratory (PNNL) Environmental Molecular Sciences Laboratory (EMSL) computing group for strong computing support; and the National Institute of Informatics, and Science Information NETwork 5 (SINET5) for valuable network support. We acknowledge support from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT) of Japan, the Japan Society for the Promotion of Science (JSPS), and the Tau-Lepton Physics Research Center of Nagoya University; the Australian Research Council including Grants No. DP180102629, No. DP170102389, No. DP170102204, No. DP150103061, No. FT130100303; Austrian Science Fund under Grant No. P 26794-N20; the National Natural Science Foundation of China under Contracts No. 11435013, No. 11475187, No. 11521505, No. 11575017, No. 11675166, No. 11705209; Key Research Program of Frontier Sciences, Chinese Academy of Sciences (CAS), Grant No. QYZDJ-SSW-SLH011; the CAS Center for Excellence in Particle Physics (CCEPP); the Shanghai Pujiang ProgramunderGrantNo. 18PJ1401000; theMinistry of Education, Youth and Sports of the Czech Republic under Contract No. LTT17020; the Carl Zeiss Foundation, the Deutsche Forschungsgemeinschaft, the Excellence Cluster Universe, and the VolkswagenStiftung; the Department of Science and Technology of India; the Istituto Nazionale di Fisica Nucleare of Italy; National Research Foundation (NRF) of Korea Grants No. 2015H1A2A1033649, No. 2016R1D1A1B01010135, No. 2016K1A3A7A09005 603, No. 2016R1D1A1B02012900, No. 2018R1A2B3003 643, No. 2018R1A6A1A06024970, No. 2018R1D1 A1B07047294; Radiation Science Research Institute, Foreign Large-size Research Facility Application Supporting project, the Global Science Experimental Data Hub Center of the Korea Institute of Science and Technology Information and KREONET/GLORIAD; the PolishMinistry of Science and Higher Education and the National Science Center; the Grant of the Russian Federation Government, Agreement No. 14.W03.31.0026; the Slovenian Research Agency; Ikerbasque, Basque Foundation for Science, Spain; the Swiss National Science Foundation; the Ministry of Education and the Ministry of Science and Technology of Taiwan; and the United States Department of Energy and the National Science Foundation.
Published: 2022

23. Measurement of the branching fraction of $\Lambda_c^+ \to p \omega$ decay at Belle

Author: Belle Collaboration, Li, S. X., Li, L. K., Shen, C. P., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aushev, T., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bodrov, D., Borah, J., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M. -C., Chang, P., 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., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Golob, B., Graziani, E., Gu, T., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., 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., Joo, K. K., Kaliyar, A. B., Kang, K. H., Kato, Y., Kichimi, H., Kim, C. H., Kim, D. Y., Kim, K. -H., Kim, K. T., Kim, Y. -K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kumar, R., Kumara, K., Kwon, Y. -J., Lai, Y. -T., Lange, J. S., Laurenza, M., Lee, S. C., Li, J., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Mizuk, R., Mussa, R., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Park, H., Park, S. -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., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shiu, J. -G., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Vinokurova, A., Waheed, E., Wang, C. H., Wang, E., Wang, M. -Z., Wang, P., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: ratio [measure], measure, ratio, measure: ratio, BELLE, annihilation [electron positron], electron positron: annihilation, +p+omega%28783%29%22">Lambda/c+ --> p omega(783), Lambda/c+, branching ratio, High Energy Physics - Experiment, KEK-B, Lambda/c+: hadronic decay, ddc:530, Lambda/c+: rare decay, branching ratio [Lambda/c+], omega(783), rare decay [Lambda/c+], branching ratio: ratio: measured, hadronic decay [Lambda/c+], branching ratio, ratio, statistical [error], electron positron: colliding beams, error: statistical, High Energy Physics - Phenomenology, Lambda/c+: branching ratio, colliding beams [electron positron], ratio: measured [branching ratio], statistical, experimental results
Abstract: Physical review / D 104(7), 072008 (2021). doi:10.1103/PhysRevD.104.072008, Using 980.6 $\rm fb^{-1}$ of data collected with the Belle detector operating at the KEKB asymmetric-energy $e^+e^-$ collider, we present a measurement of the branching fraction of the singly Cabibbo-suppressed decay $\Lambda_c^+ \to p \omega$. A clear $\Lambda_c^+$ signal is observed for $\Lambda_c^+ \to p \omega$ with a statistical significance of 9.1 standard deviations, and we measure the ratio of branching fractions ${\cal B}(\Lambda_c^+ \to p \omega)/{\cal B}(\Lambda_c^+ \to p K^- \pi^+) = (1.32 \pm 0.12 (\rm stat) \pm 0.10 (\rm syst))\times 10^{-2}$, from which we infer the branching fraction ${\cal B}(\Lambda_c^+ \to p \omega) = (8.27 \pm 0.75 (\rm stat) \pm 0.62 (\rm syst) \pm 0.42 (\rm ref))\times 10^{-4}$. The first quoted uncertainty is statistical, the second systematic, and the third from the reference mode $\Lambda_c^+ \to p K^- \pi^+$., Published by APS, Melville, NY
Published: 2021

24. Search for the decay Bs0→η′η

Author: Nisar, N. K., Savinov, V., Bahinipati, S., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, S. C., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Behera, P., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Mizuk, R., Mohanty, G. B., Mohanty, S., Bennett, J., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Bessner, M., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Bhardwaj, V., Piilonen, L. E., Podobnik, T., Prencipe, E., Prim, M. T., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Bhuyan, B., Sangal, A., Santelj, L., Sanuki, T., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Bilka, T., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Simon, F., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Sumihama, M., Biswal, J., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Bonvicini, G., Urquijo, P., Van Tonder, R., Varner, G., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanuki, S., Bozek, A., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Adachi, I., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chang, M.-C., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Aihara, H., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Nardo, G., Dhamija, R., Al Said, S., Di Capua, F., Doležal, Z., Dong, T. V., Dubey, S., Eidelman, S., Epifanov, D., Ferber, T., Ferlewicz, D., Frey, A., Fulsom, B. G., Asner, D. M., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Atmacan, H., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hsu, C.-L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Aushev, T., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Kahn, J., Kaliyar, A. B., Kang, K. H., Ayad, R., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Babu, V., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumar, R., Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), Belle, Belle, Collaboration, Campajola, M., De Nardo, G., Di Capua, F., Merola, M., Pardi, S., Russo, G., and Et, Al.
Subjects: Physics, 010308 nuclear & particles physics, Branching fraction, Detector, Resonance, BELLE, Upsilon(10870), 01 natural sciences, ddc, law.invention, Nuclear physics, KEK-B, KEKB, law, 0103 physical sciences, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], High Energy Physics::Experiment, ddc:530, branching ratio, 010306 general physics, Collider
Abstract: International audience; We report the results of the first search for the decay Bs0→η′η using 121.4 fb-1 of data collected at the ϒ(5S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We observe no significant signal and set a 90% confidence-level upper limit of 6.5×10-5 on the branching fraction of this decay.
Published: 2021

25. Measurements of branching fractions and asymmetry parameters of $\Xi^0_c\to \Lambda\bar K^{0}$, $\Xi^0_c\to \Sigma^0\bar K^{0}$, and $\Xi^0_c\to \Sigma^+K^{*-}$ decays at Belle

Author: Belle Collaboration, Jia, S., Tang, S. S., Shen, C. P., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bennett, J., Bessner, M., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bracko, M., Browder, T. E., Campajola, M., Cervenkov, D., Chang, M. -C., 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., De Nardo, G., Dhamija, R., Di Capua, F., Dolezal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Ferber, T., Flood, K., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Grzymkowska, O., 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., Jin, Y., Joo, K. K., Karyan, G., Kato, Y., Kichimi, H., Kim, C. H., Kim, D. Y., Kim, K. -H., Kim, S. H., Kim, Y. -K., Kinoshita, K., Kodys, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Krizan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumara, K., Kuzmin, A., Kwon, Y. -J., Lalwani, K., Lange, J. S., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., McNeil, J. T., Merola, M., Metzner, F., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mussa, R., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S. -H., Patra, S., Paul, S., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Sharma, C., Shiu, J. -G., Sokolov, A., Solovieva, E., Staric, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uehara, S., Uglov, T., Unno, Y., Uno, K., Uno, S., Urquijo, P., Usov, Y., Van Tonder, R., Varner, G., Waheed, E., Wang, C. H., Wang, M. -Z., Wang, P., Watanabe, M., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Belle
Subjects: +Sigma0+K*%28892%290%22">Xi/c0 --> Sigma0 K*(892)0, BELLE, annihilation [electron positron], electron positron: annihilation, +Sigma%2B+K*%28892%29%22">Xi/c0 --> Sigma+ K*(892), High Energy Physics - Experiment, Xi/c: hadronic decay, KEK-B, talk: Prague 2020/07/30, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, +Lambda+K*%28892%290%22">Xi/c0 --> Lambda K*(892)0, Astrophysics::Galaxy Astrophysics, Lambda, Prague 2020/07/30 [talk], K*(892), branching ratio: ratio: measured, statistical [error], electron positron: colliding beams, Xi/c: branching ratio: measured, Sigma, hadronic decay [Xi/c], error: statistical, High Energy Physics - Phenomenology, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], colliding beams [electron positron], High Energy Physics::Experiment, Astrophysics::Earth and Planetary Astrophysics, branching ratio: measured [Xi/c], ratio: measured [branching ratio], asymmetry, experimental results
Abstract: Journal of high energy physics 06(6), 160 (2021). doi:10.1007/JHEP06(2021)160, Using a data sample of 980 fb$^{-1}$ collected with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider, we study the processes of $\Xi^0_c\to \Lambda\bar K^{*0}$, $\Xi^0_c\to \Sigma^0\bar K^{*0}$, and $\Xi^0_c\to \Sigma^+K^{*-}$ for the first time. The relative branching ratios to the normalization mode of $\Xi^0_c\to\Xi^-\pi^+$ are measured to be $${\cal B}(\Xi^0_c\to \Lambda\bar K^{*0})/{\cal B}(\Xi^0_c\to \Xi^-\pi^+)=0.18\pm0.02({\rm stat.})\pm0.01({\rm syst.}),$$ $${\cal B}(\Xi^0_c\to \Sigma^0\bar K^{*0})/{\cal B}(\Xi^0_c\to \Xi^-\pi^+)=0.69\pm0.03({\rm stat.})\pm0.03({\rm syst.}),$$ $${\cal B}(\Xi^0_c\to \Sigma^+K^{*-})/{\cal B}(\Xi^0_c\to \Xi^-\pi^+)=0.34\pm0.06({\rm stat.})\pm0.02({\rm syst.}),$$ where the uncertainties are statistical and systematic, respectively. We obtain %measure the branching fractions of $\Xi^0_c\to \Lambda\bar K^{*0}$, $\Xi^0_c\to \Sigma^0\bar K^{*0}$, and $\Xi^0_c\to \Sigma^+K^{*-}$ to be $${\cal B}(\Xi^0_c\to \Lambda\bar K^{*0})=(3.3\pm0.3({\rm stat.})\pm0.2({\rm syst.})\pm1.0({\rm ref.}))\times10^{-3},$$ $${\cal B}(\Xi^0_c\to \Sigma^0\bar K^{*0})=(12.4\pm0.5({\rm stat.})\pm0.5({\rm syst.})\pm3.6({\rm ref.}))\times10^{-3},$$ $${\cal B}(\Xi^0_c\to \Sigma^+K^{*-})=(6.1\pm1.0({\rm stat.})\pm0.4({\rm syst.})\pm1.8({\rm ref.}))\times10^{-3},$$ where the uncertainties are statistical, systematic, and from ${\cal B}(\Xi^0_c\to \Xi^-\pi^+)$, respectively. The asymmetry parameters $\alpha(\Xi^0_c\to \Lambda\bar K^{*0})$ and $\alpha(\Xi^0_c\to \Sigma^+K^{*-})$ are $0.15\pm0.22({\rm stat.})\pm0.04({\rm syst.})$ and $-0.52\pm0.30({\rm stat.})\pm0.02({\rm syst.})$, respectively, where the uncertainties are statistical followed by systematic., Published by SISSA, [Trieste]
Published: 2021
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26. Search for the Dark Photon in B-0 -> A ' A ', A ' -> e(+)e(-), mu(+)mu(-), and pi(+)pi(-) decays at Belle

Author: Park, S.-H., Kwon, Y.-J., Behera, P., Lee, I. S., Lee, S. C., Li, C. H., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liptak, Z., Bennett, J., Liventsev, D., Luo, T., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Bessner, M., Mizuk, R., Mohanty, G. B., Mohanty, S., Mori, T., Moser, H.-G., Mrvar, M., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Bhardwaj, V., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Bhuyan, B., Pakhlova, G., Pardi, S., Park, C. W., Park, H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Bilka, T., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sakai, Y., Sandilya, S., Biswal, J., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Bonvicini, G., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Strube, J. F., Bozek, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Bračko, M., Uno, S., Urquijo, P., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Waheed, E., Wang, C. H., Adachi, I., Browder, T. E., Wang, E., Wang, M.-Z., Wang, P., Watanabe, M., Watanuki, S., Wehle, S., Won, E., Xu, X., Yabsley, B. D., Yan, W., Campajola, M., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., Belle Collaboration, Cao, L., Červenkov, D., Chang, M.-C., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Aihara, H., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Nardo, G., Al Said, S., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Asner, D. M., Garmash, A., Giri, A., Goldenzweig, P., Guan, Y., Gudkova, K., Hadjivasiliou, C., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Atmacan, H., Hedges, M. T., Hernandez Villanueva, M., Hou, W.-S., Hsu, C.-L., Huang, K., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Aushev, T., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jaegle, I., Jang, E.-J., Jeon, H. B., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Ayad, R., Kang, K. H., Karyan, G., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Babu, V., Konno, T., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumara, K., Lalwani, K., Belle, Collaboration, Campajola, M., De Nardo, G., Di Capua, F., Merola, M., Pardi, S., Russo, G., and Et, Al.
Subjects: pair production [photon], e+-e- Experiment, Nuclear and High Energy Physics, Particle physics, pair production [charged particle], B physic, mass [photon], BELLE, QC770-798, annihilation [electron positron], 01 natural sciences, Dark photon, Prime (order theory), B physics, KEKB, KEK-B, decay modes [B0], Nuclear and particle physics. Atomic energy. Radioactivity, 0103 physical sciences, decay rate [photon], ddc:530, hidden sector [photon], pair production [electron], pair production [muon], 010306 general physics, Physics, e+-e- Experiments, 010308 nuclear & particles physics, Branching fraction, Order (ring theory), Resonance, decay modes [photon], mass [Higgs particle], Belle detector, 3. Good health, pair production [B], Rare decay, pair production [pi], Beyond Standard Model, dark photon, Higgs boson, electroproduction [Upsilon(10570)], colliding beams [electron positron], High Energy Physics::Experiment, branching ratio: upper limit [B0], experimental results
Abstract: We present a search for the dark photon A′ in the B0 → A′A′ decays, where A′ subsequently decays to e+e−, μ+μ−, and π+π−. The search is performed by analyzing 772 × 106$$ B\overline{B} $$ B B ¯ events collected by the Belle detector at the KEKB e+e− energy-asymmetric collider at the ϒ(4S) resonance. No signal is found in the dark photon mass range 0.01 GeV/c2 ≤ mA′ ≤ 2.62 GeV/c2, and we set upper limits of the branching fraction of B0 → A′A′ at the 90% confidence level. The products of branching fractions, $$ \mathrm{\mathcal{B}}\left({B}^0\to A^{\prime }A^{\prime}\right)\times \mathrm{\mathcal{B}}{\left(A\prime \to {e}^{+}{e}^{-}\right)}^2 $$ ℬ B 0 → A ′ A ′ × ℬ A ′ → e + e − 2 and $$ \mathrm{\mathcal{B}}\left({B}^0\to A^{\prime }A^{\prime}\right)\times \mathrm{\mathcal{B}}{\left(A\prime \to {\mu}^{+}{\mu}^{-}\right)}^2 $$ ℬ B 0 → A ′ A ′ × ℬ A ′ → μ + μ − 2 , have limits of the order of 10−8 depending on the A′ mass. Furthermore, considering A′ decay rate to each pair of charged particles, the upper limits of $$ \mathrm{\mathcal{B}}\left({B}^0\to A^{\prime }A^{\prime}\right) $$ ℬ B 0 → A ′ A ′ are of the order of 10−8–10−5. From the upper limits of $$ \mathrm{\mathcal{B}}\left({B}^0\to A^{\prime }A^{\prime}\right) $$ ℬ B 0 → A ′ A ′ , we obtain the Higgs portal coupling for each assumed dark photon and dark Higgs mass. The Higgs portal couplings are of the order of 10−2–10−1 at $$ {m}_{h\prime}\simeq {m}_{B^0} $$ m h ′ ≃ m B 0 ± 40 MeV/c2 and 10−1–1 at $$ {m}_{h\prime}\simeq {m}_{B^0} $$ m h ′ ≃ m B 0 ± 3 GeV/c2.
Published: 2021

27. Search for the $η_ {c 2} ( 1 D )$ in $e^ + e^ − → γ η_ {c 2} ( 1 D )$ at s near 10.6 GeV at Belle

Author: Jia, S., Shen, C. P., Belous, K., Lalwani, K., Lange, J. S., Laurenza, M., Lee, S. C., Li, C. H., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Bennett, J., Lieret, K., Liventsev, D., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Miyata, H., Mizuk, R., Bessner, M., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Bhardwaj, V., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, S.-H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Bhuyan, B., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Bilka, T., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Biswal, J., Shiu, J.-G., Shwartz, B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Takizawa, M., Tanida, K., Tao, Y., Bobrov, A., Tenchini, F., Trabelsi, K., Uglov, T., Unno, Y., Uno, K., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Bonvicini, G., Varner, G., Vinokurova, A., Waheed, E., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Watanuki, S., Werbycka, O., Won, E., Bozek, A., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, Hua, Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Adachi, I., Bračko, M., Zhilich, V., Zhukova, V., Belle Collaboration, Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., Chekelian, V., Chen, A., Aihara, H., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Al Said, 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., Asner, D. M., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Graziani, E., Gu, T., Gudkova, K., Aushev, T., Hadjivasiliou, C., Halder, S., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Inami, K., Ishikawa, A., Ayad, R., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jin, Y., Joo, K. K., Kaliyar, A. B., Kang, K. H., Karyan, G., Kato, Y., Babu, V., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Behera, P., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumara, K., Kuzmin, A., and Kwon, Y.-J.
Subjects: ddc:530
Abstract: For the first time we search for the $\eta_{c2}(1D)$ in $e^+e^-\to\gamma\eta_{c2}(1D)$ at $\sqrt{s}$ = 10.52, 10.58, and 10.867 GeV with data samples of 89.5 fb$^{-1}$, 711 fb$^{-1}$, and 121.4 fb$^{-1}$, respectively, accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant $\eta_{c2}(1D)$ signal is observed in the mass range between 3.8 and 3.88 GeV/$c^2$. The upper limit at 90\% confidence level on the product of the Born cross section for $e^+e^- \to \gamma\eta_{c2}(1D)$ and branching fraction for $\eta_{c2}(1D)\to \gamma h_c(1P)$ is determined to be $\sigma(e^+e^- \to \gamma\eta_{c2}(1D)){\cal B}(\eta_{c2}(1D)\to \gamma h_c(1P))$ $
Published: 2021
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28. Measurement of branching fractions of Λ + c→ηΛπ+, ηΣ0π+, Λ(1670)π+, and ηΣ(1385)+

Author: Belle Collaboration, Lee, J. Y., Tanida, K., Kato, Y., Kim, S. K., Yang, S. B., Adachi, I., Ahn, J. K., Aihara, H., Al Said, S., Asner, D. M., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Beleño, C., Bennett, J., Bessner, M., Bhuyan, B., Bilka, T., Biswal, J., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, M.-C., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., De Nardo, G., Di Capua, F., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Hadjivasiliou, C., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hernandez Villanueva, M., Hsu, C.-L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Kang, K. H., Karyan, G., Kichimi, H., Kiesling, C., Kim, B. H., Kim, D. Y., Kim, K.-H., Kim, K. T., Kim, S. H., Kim, Y. J., Kim, Y.-K., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liptak, Z., Liventsev, D., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Moon, T. J., Mori, T., Mussa, R., Nakano, T., Nakao, M., Natochii, A., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Olsen, S. L., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Santelj, L., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seidl, R., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Shebalin, V., Shiu, J.-G., Shwartz, B., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tenchini, F., Uchida, M., Uglov, T., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Watanabe, M., Watanuki, S., Wehle, S., Wiechczynski, J., Xu, X., Yabsley, B. D., Yan, W., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: Physics, ddc:530
Published: 2021

29. Measurement of the branching fraction and $CP$ asymmetry for $B\to\bar{D}^{0} \pi$ decays

Author: Bloomfield, T., Sevior, M. E., Bahinipati, S., Lee, I. S., Lee, S. C., Li, C. H., Li, J., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., Luo, T., Behera, P., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mohanty, S., Bennett, J., Moon, H. K., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Bessner, M., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S.-H., Paul, S., Pedlar, T. K., Bilka, T., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Rostomyan, A., Rout, N., Rozanska, M., Biswal, J., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schueler, J., Bobrov, A., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Simon, F., Bonvicini, G., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Bozek, A., Tanida, K., Tao, Y., Tenchini, Francesco, Trabelsi, K., Uchida, M., Uno, K., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Bračko, M., Varner, G., Varvell, K. E., Vossen, A., Waheed, E., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Watanabe, M., Watanuki, S., Adachi, I., Browder, T. E., Werbycka, O., Wiechczynski, J., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Campajola, M., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., Belle Collaboration, Cao, L., Červenkov, D., Chang, M.-C., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Aihara, H., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Nardo, G., Said, S. Al, Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Dubey, S., Eidelman, S., Epifanov, D., Ferber, T., Ferlewicz, D., Fulsom, B. G., Asner, D. M., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Hadjivasiliou, C., Halder, S., Hartbrich, O., Hayasaka, K., Hayashii, H., Aulchenko, V., Hedges, M. T., Villanueva, M. Hernandez, Hou, W.-S., Hsu, C.-L., Iijima, T., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Aushev, T., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Kaliyar, A. B., Kang, K. H., Karyan, G., Kawasaki, T., Ayad, R., Kim, C. H., Kim, D. Y., Kim, H. J., Kim, S. H., Kim, Y.-K., Kimmel, T. D., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Babu, V., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kumar, M., Kumar, R., Kumara, K., Kwon, Y.-J., Lalwani, K., and Lange, J. S.
Subjects: Upsilon(10570): electroproduction, B0: branching ratio, BELLE, annihilation [electron positron], electron positron: annihilation, CP [asymmetry], violation [CP], High Energy Physics - Experiment, KEK-B, 5/3, branching ratio [B0], CP: violation, ddc:530, hadronic decay [B0], +anti-D0+pi%2B%22">B+ --> anti-D0 pi+, B+: branching ratio, B0: hadronic decay, +anti-D0+pi0%22">B0 --> anti-D0 pi0, branching ratio: ratio: measured, electron positron: colliding beams, asymmetry: CP, Upsilon(10570), branching ratio [B+], B+: hadronic decay, electroproduction [Upsilon(10570)], colliding beams [electron positron], hadronic decay [B+], branching ratio, ratio: measured [branching ratio], asymmetry, experimental results
Abstract: Physical review / D 105(7), 072007 (2022). doi:10.1103/PhysRevD.105.072007, We measure the branching fractions and $CP$ asymmetries for the decays $B^{0}\to \bar{D}^{0}\pi^{0}$ and $B^{+}\to \bar{D}^{0}\pi^{+}$, using a data sample of $772\times 10^{6}$$B\bar{B}$ pairs collected at the $\Upsilon(4S)$ resonance with the Belle detector at the KEKB $e^{+}e^{-}$ collider. The branching fractions obtained and direct $CP$ asymmetries are $\mathcal{B}(B^{0}\to \bar{D}^{0}\pi^{0}) = [2.70 \pm 0.06~ \text{(stat.)} \pm 0.10~ \text{(syst.)}] \times 10^{-4}$, $\mathcal{B}(B^{+}\to \bar{D}^{0}\pi^{+}) = [4.53 \pm 0.02~ \text{(stat.)} \pm 0.15~ \text{(syst.)}] \times 10^{-3}$, $ {\cal A}_{CP}(B^{0}\to \bar{D}^{0}\pi^{0}) = [+0.42 \pm 2.05~ \text{(stat.)} \pm 1.22~ \text{(syst.)}]\%$, and $ {\cal A}_{CP}(B^{+}\to \bar{D}^{0}\pi^{+}) = [+0.19 \pm 0.36~ \text{(stat.)} \pm 0.57~ \text{(syst.)}]\%$. The measurements of $\mathcal{B}$ are the most precise to date and are in good agreement with previous results, as is the measurement of ${\cal A}_{CP}(B^{+}\to \bar{D}^{0}\pi^{+})$. The measurement of ${\cal A}_{CP}$ for $B^{0}\to \bar{D}^{0}\pi^{0}$ is the first for this mode, and the value is consistent with Standard Model expectations., Published by Inst., Melville, NY
Published: 2021
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30. Measurement of time-dependent CP violation parameters in B⁰ →K⁰$_{S}$K⁰$_{S}$K⁰$_{S}$ decays at Belle

Author: Belle Collaboration, Kang, K. H., Park, H., Higuchi, T., Miyabayashi, K., Sumisawa, K., Adachi, I., Ahn, J. K., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Bakich, A. M., Behera, P., Beleño, C., Bennett, J., Bhardwaj, V., Bilka, T., Biswal, J., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, M.-C., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S.-K., Choi, Y., Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., Doležal, Z., Dong, T. V., Eidelman, S., Fast, J. E., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Greenwald, D., Guan, Y., Hartbrich, O., Hayasaka, K., Hayashii, H., Hernandez Villanueva, M., Hou, W.-S., Hsu, C.-L., Inami, K., Inguglia, G., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Jeon, H. B., Jia, S., Jin, Y., Joo, K. K., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kulasiri, R., Kumar, R., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, I. S., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyata, H., Mizuk, R., Mohanty, G. B., Moon, T. J., Mori, T., Morii, T., Mrvar, M., Mussa, R., Nakao, M., Nakazawa, H., Natkaniec, Z., Nayak, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Purohit, M. V., Ritter, M., Röhrken, M., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., 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., Shebalin, V., Shiu, J.-G., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Varner, G., Vinokurova, A., Vorobyev, V., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Wang, X. L., Watanuki, S., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: Physics, ddc:530
Published: 2021

31. First determination of the spin and parity of the charmed-strange baryon $\Xi_ c ( 2970 )^ +$

Author: Moon, T. J., Tanida, K., Aushev, T., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liptak, Z., Liventsev, D., Luo, T., MacQueen, C., Masuda, M., Ayad, R., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Mori, T., Mussa, R., Babu, V., Nakano, T., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Bahinipati, S., Ono, H., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Behera, P., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Beleño, C., Sandilya, S., Sangal, A., Santelj, L., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Seidl, R., Seino, Y., Senyo, K., Bennett, J., Sevior, M. E., Shapkin, M., Shen, C. P., Shiu, J.-G., Shwartz, B., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumisawa, K., Bessner, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Bhuyan, B., Uno, S., Urquijo, P., Vahsen, S. E., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, C. H., Wang, E., Bilka, T., Wang, M.-Z., Wang, P., Wehle, S., Wiechczynski, J., Xu, X., Yabsley, B. D., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Kato, Y., Biswal, J., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., Zhulanov, V., Belle Collaboration, Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, M.-C., Chang, P., Kim, S. K., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Adachi, I., De Nardo, G., Di Capua, F., Doležal, Z., Dong, T. V., Dossett, D., Dubey, S., Eidelman, S., Epifanov, D., Ferber, T., Fulsom, B. G., Ahn, J. K., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Hadjivasiliou, C., Hartbrich, O., Hayasaka, K., Aihara, H., Hayashii, H., Hedges, M. T., Hou, W.-S., Hsu, C.-L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Al Said, S., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, B. H., Asner, D. M., Kim, D. Y., Kim, K. T., Kim, S. H., Kim, Y. J., Kim, Y.-K., Kimmel, T. D., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Aulchenko, V., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lee, I. S., and Lee, J. Y.
Subjects: Mathematics::Probability, Condensed Matter::Superconductivity, High Energy Physics::Experiment, ddc:530, Condensed Matter::Disordered Systems and Neural Networks
Abstract: Physical review / D 103(11), L111101 (2021). doi:10.1103/PhysRevD.103.L111101, We report results from a study of the spin and parity of $\Xi_ c ( 2970 )^ +$ a 980 fb$^{��1}$ data sample collected by the Belle detector at the KEKB asymmetric-energy e��e��collider. The decay angledistributions in the chain $\Xi_ c ( 2970 )^ +$ $\to \Xi_{c}(2645)^0 \pi^+ \to \Xi_{c}^+ \pi^- \pi^+$ are analyzed to determine the spin of this charmed-strange baryon. The angular distributions strongly favor the ��c��2970��spin 1/2 over 3/2 or 5/2, under an assumption that the lowest partial wave dominates in the decay. We also measure the ratio of $\Xi_ c ( 2970 )^ +$ decay branching fractions R = $\mathcal{B}$ [\Xi_ c ( 2970 )^ + \to\Xi_{c}(2645)^0 \pi^+$]= $\mathcal{B}[$\Xi_ c ( 2970 )^ + \to \Xi_{c}^0 \pi^+$]$ = 1.670.29(stat)_{��0.09}^{+0.15}$(syst)$\pm$0.25, where the last uncertainty is due to possible isospin-symmetry-breaking effects. This R value favors the spin-parity $J^P$ 1/2$^+$ with the spin of the light-quark degrees offreedom $s_l$ = 0. This is the first determination of the spin and parity of a charmed-strange baryon, Published by American Physical Society, Melville, NY
Published: 2021

32. Search for the $\eta_{c2}(1D)$ in $e^+e^-\to\gamma\eta_{c2}(1D)$ at $\sqrt{s}$ near 10.6 GeV at Belle

Author: Jia, S., Shen, C. P., Belous, K., Lalwani, K., Lange, J. S., Laurenza, M., Lee, S. C., Li, C. H., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Bennett, J., Lieret, K., Liventsev, D., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Miyata, H., Mizuk, R., Bessner, M., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Bhardwaj, V., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, S.-H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Bhuyan, B., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Bilka, T., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Biswal, J., Shiu, J.-G., Shwartz, B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Takizawa, M., Tanida, K., Tao, Y., Bobrov, A., Tenchini, F., Trabelsi, K., Uglov, T., Unno, Y., Uno, K., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Bonvicini, G., Varner, G., Vinokurova, A., Waheed, E., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Watanuki, S., Werbycka, O., Won, E., Bozek, A., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, Hua, Yelton, J., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Adachi, I., Bračko, M., Zhilich, V., Zhukova, V., Belle Collaboration, Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., Chekelian, V., Chen, A., Aihara, H., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Al Said, 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., Asner, D. M., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Graziani, E., Gu, T., Gudkova, K., Aushev, T., Hadjivasiliou, C., Halder, S., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Inami, K., Ishikawa, A., Ayad, R., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jin, Y., Joo, K. K., Kaliyar, A. B., Kang, K. H., Karyan, G., Kato, Y., Babu, V., Kawasaki, T., Kiesling, C., Kim, D. Y., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Behera, P., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumara, K., Kuzmin, A., Kwon, Y.-J., Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Belle
Subjects: energy, asymmetry, electron positron, BELLE, electron positron, energy, GeV, High Energy Physics - Experiment, High Energy Physics - Phenomenology, KEK-B, [PHYS.HPHE]Physics [physics]/High Energy Physics - Phenomenology [hep-ph], [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, branching ratio, asymmetry, energy
Abstract: Physical review / D 104(1), 012012 (2021). doi:10.1103/PhysRevD.104.012012, For the first time we search for the $\eta_{c2}(1D)$ in $e^+e^-\to\gamma\eta_{c2}(1D)$ at $\sqrt{s}$ = 10.52, 10.58, and 10.867 GeV with data samples of 89.5 fb$^{-1}$, 711 fb$^{-1}$, and 121.4 fb$^{-1}$, respectively, accumulated with the Belle detector at the KEKB asymmetric energy electron-positron collider. No significant $\eta_{c2}(1D)$ signal is observed in the mass range between 3.8 and 3.88 GeV/$c^2$. The upper limit at 90% confidence level on the product of the Born cross section for $e^+e^- \to \gamma\eta_{c2}(1D)$ and branching fraction for $\eta_{c2}(1D)\to \gamma h_c(1P)$ is determined to be $\sigma(e^+e^- \to \gamma\eta_{c2}(1D)){\cal B}(\eta_{c2}(1D)\to \gamma h_c(1P))$$, Published by APS, Melville, NY
Published: 2021

33. Measurement of branching fractions and CP asymmetries for D$^{+}$$_{s}$ ��K$^{+}$(��,��$^{0}$) and D$^{+}$$_{s}$ �� $^{+}$(��,��$^{0}$) decays at Belle

Author: Belle Collaboration, Guan, Y., Schwartz, A. J., Kinoshita, K., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., 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., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., De Nardo, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Eidelman, S., Epifanov, D., Ferber, T., Ferlewicz, D., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, T., 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., Joo, C. W., Joo, K. K., Kahn, J., Kaliyar, A. B., Kang, K. H., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Kim, Y.-K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kumar, M., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Lewis, P., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mrvar, M., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Purohit, M. V., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Sumihama, M., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Van Tonder, R., Varner, G., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanuki, S., Werbycka, O., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Published: 2021
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34. Measurement of the branching fraction of Λ + c→pω decay at Belle

Author: Belle Collaboration, Li, S. X., Li, L. K., Shen, C. P., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Aushev, T., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bodrov, D., Borah, J., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., 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., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Giri, A., Goldenzweig, P., Golob, B., Graziani, E., Gu, T., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., 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., Joo, K. K., Kaliyar, A. B., Kang, K. H., Kato, Y., Kichimi, H., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, K. T., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kumar, R., Kumara, K., Kwon, Y.-J., Lai, Y.-T., Lange, J. S., Laurenza, M., Lee, S. C., Li, J., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Mizuk, R., Mussa, R., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Park, H., Park, S.-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., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shiu, J.-G., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Vinokurova, A., Waheed, E., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Published: 2021

35. Measurement of branching fraction and search for CP violation in B→ϕϕK

Author: Belle Collaboration, Mohanty, S., Kaliyar, A. B., Gaur, V., Mohanty, G. B., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Aziz, T., Babu, V., Bahinipati, S., Behera, P., Bessner, M., Bhardwaj, V., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chekelian, V., 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., Doležal, Z., Dong, T. V., Eidelman, S., Ferber, T., Fulsom, B. G., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grzymkowska, O., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joo, K. K., Kang, K. H., Karyan, G., Kim, B. H., Kim, C. H., Kim, D. Y., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korpar, S., Kotchetkov, D., Križan, P., Krokovny, P., Kulasiri, R., Kumar, M., Kumar, R., Kumara, K., Kwon, Y.-J., Lalwani, K., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liptak, Z., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Merola, M., Miyabayashi, K., Mizuk, R., Moon, T. J., Mussa, R., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Onuki, Y., Oskin, P., Pakhlova, G., Pardi, S., Park, C. W., Park, H., Park, S.-H., Patra, 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., Sangal, A., Sanuki, T., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shiu, J.-G., Shwartz, B., Simon, F., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tanida, K., Tao, Y., Tenchini, F., Uchida, M., Unno, Y., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Wang, X. L., Watanuki, S., Wiechczynski, J., Won, E., Xu, X., Yabsley, B. D., Yan, W., Ye, H., Yin, J. H., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Published: 2021

36. Search for the decay $B_s^0\rightarrow\eta\eta$

Author: Bhuyan, B., Nath, K. J., Ayad, R., Lu, P.-C., Luo, T., MacNaughton, J., MacQueen, C., Masuda, M., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Babu, V., Mohanty, G. B., Mori, T., Mussa, R., Nakano, T., Nakao, M., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, K., Badhrees, I., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Pakhlova, G., Pal, B., Pang, T., Pardi, S., Park, H., Patra, S., Bakich, A. M., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Ritter, M., Rostomyan, A., Russo, G., Sakai, Y., Behera, P., Salehi, M., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Schwartz, A. J., Bennett, J., Seino, Y., Senyo, K., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J.-G., Solovieva, E., Starič, M., Sumiyoshi, T., Sutcliffe, W., Bhardwaj, V., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Bilka, T., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Vossen, A., Wang, C. H., Wang, M.-Z., Wang, P., Wiechczynski, J., Won, E., Biswal, J., Yang, S. B., Ye, H., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Bobrov, A., Borah, J., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Adachi, I., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., Di Capua, F., Di Carlo, S., Doležal, Z., Dong, T. V., Aihara, H., Dubey, S., Eidelman, S., Fast, J. E., Ferber, T., Fulsom, B. G., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Said, S. Al, Golob, B., Haba, J., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Iijima, T., Inami, K., Inguglia, G., Asner, D. M., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kaliyar, A. B., Atmacan, H., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, D. Y., Kim, H. J., Kim, K. T., Kim, S. H., Kinoshita, K., Aulchenko, V., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kumar, R., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Aushev, T., Lee, J. K., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., and Liventsev, D.
Subjects: rare decay [B/s0], BELLE, annihilation [electron positron], electron positron: annihilation, Upsilon(10870), eta: pair production, High Energy Physics - Experiment, +2eta%22">B/s0 --> 2eta, KEK-B, ddc:530, electron positron: colliding beams, B/s0: branching ratio: upper limit, Upsilon(10870): electroproduction, hadronic decay [B/s0], pair production [eta], electroproduction [Upsilon(10870)], B/s0: hadronic decay, colliding beams [electron positron], branching ratio: upper limit [B/s0], High Energy Physics::Experiment, branching ratio, B/s0: rare decay, experimental results
Abstract: Physical review / D 105(1), 012007 (2022). doi:10.1103/PhysRevD.105.012007, We report results from a search for the decay B0s→ηη using 121.4 fb−1 of data collected at the Υ(5S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. We do not observe any signal and set an upper limit on the branching fraction of 14.3×10−5 at 90% confidence level. This result represents a significant improvement over the previous most stringent limit., Published by APS, Melville, NY
Published: 2021
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37. Search for B$^{0}$→τ$^{±}$ℓ$^{∓}$ (ℓ=e , μ ) with a hadronic tagging method at Belle

Author: Belle Collaboration, Atmacan, H., Schwartz, A. J., Kinoshita, K., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Bauer, M., Behera, P., Belous, K., Bennett, J., Bernlochner, F., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Cao, L., Červenkov, D., Chang, M.-C., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., 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., 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., Graziani, E., Greenwald, D., Gu, T., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Kaliyar, A. B., Kang, K. H., Kato, Y., Kawasaki, T., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumara, K., Kwon, Y.-J., Lai, Y.-T., Lange, J. S., Laurenza, M., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S.-H., Passeri, A., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Prencipe, E., Prim, M. T., Ripp-Baudot, I., 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., Shen, C. P., Shiu, J.-G., Simon, F., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Tamponi, U., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Urquijo, P., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Waheed, E., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Watanuki, S., Wiechczynski, J., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Zhang, Z. P., Zhilich, V., Zhukova, V., Institut Pluridisciplinaire Hubert Curien (IPHC), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université de Strasbourg (UNISTRA)-Centre National de la Recherche Scientifique (CNRS), Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Belle
Subjects: electron, B: pair production, Physics, B: hadronic decay, B0: branching ratio: upper limit, +tau%2B+electron%22">B0 --> tau+ electron, B0: rare decay, BELLE, electron positron: colliding beams, electron positron: annihilation, +tau%2B+muon%22">B0 --> tau+ muon, tau: particle identification, KEK-B, muon, B: decay modes, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, B0: leptonic decay, +tau-+positron%22">B0 --> tau- positron, experimental results, +tau-+muon%2B%22">B0 --> tau- muon+
Abstract: International audience; We present a search for the lepton-flavor-violating decays B0→τ±ℓ∓, where ℓ=(e,μ), using the full data sample of 772×106 BB¯ 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. The τ± lepton is reconstructed indirectly using the momentum of the reconstructed B and that of the ℓ∓ from the signal decay. We find no evidence for B0→τ±ℓ∓ decays and set upper limits on their branching fractions at 90% confidence level of B(B0→τ±μ∓)<1.5×10-5 and B(B0→τ±e∓)<1.6×10-5.
Published: 2021

38. Measurements of the branching fractions of semileptonic decays $\Xi_{c}^{0} \to \Xi^{-} \ell^{+} \nu_{\ell}$ and asymmetry parameter of $\Xi_{c}^{0} \to \Xi^{-} \pi^{+}$ decay

Author: Li, Y. B., Shen, C. P., Behera, P., Masuda, M., Matvienko, D., McNeil, J. T., Metzner, F., Mizuk, R., Mohanty, G. B., Moon, T. J., Mori, T., Mussa, R., Natochii, A., Bennett, J., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Pakhlov, P., Bessner, M., Pakhlova, G., Pang, T., Pardi, S., Park, H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Bhardwaj, V., Popov, V., Prencipe, E., Prim, M. T., Roehrken, Markus, Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Bhuyan, B., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Shapkin, M., Sharma, C., Shiu, J.-G., Bilka, T., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Tamponi, U., Tanida, K., Tenchini, Francesco, Uchida, M., Uehara, S., Biswal, J., Uglov, T., Uno, K., Uno, S., Usov, Y., Van Tonder, R., Varner, G., Vinokurova, A., Vossen, A., Wang, C. H., Wang, M.-Z., Bonvicini, G., Wang, P., Wang, X. L., Watanabe, M., Watanuki, S., Won, E., Xu, X., Yan, W., Yang, S. B., Ye, Hua, Yin, J. H., Bozek, A., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Bračko, M., Adachi, I., Browder, T. E., Campajola, M., Cervenkov, D., Chang, M.-C., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Cho, S.-J., Choi, S.-K., Adamczyk, K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Nardo, G., Dhamija, R., Di Capua, F., Dong, T. V., Aihara, H., Eidelman, S., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Al Said, S., Grzymkowska, O., Gudkova, K., Hadjivasiliou, C., Hartbrich, O., Hayasaka, K., Hayashii, H., Villanueva, M. Hernandez, Hsu, C.-L., Ishikawa, A., Itoh, R., Asner, D. M., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Kang, K. H., Karyan, G., Kato, Y., Aushev, T., Kichimi, H., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, S. H., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Ayad, R., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Babu, V., Lalwani, K., Lange, J. S., Lee, I. S., Lee, S. C., Li, C. H., Li, L. K., Li Gioi, L., Libby, J., Lieret, K., and Liventsev, D.
Subjects: +Xi-+pi%2B%22">Xi/c0 --> Xi- pi+, +Xi-+positron+neutrino%2Fe%22">Xi/c0 --> Xi- positron neutrino/e, asymmetry: measured [decay], BELLE, annihilation [electron positron], electron positron: annihilation, Xi/c0: semileptonic decay, CP [asymmetry], 10.58 GeV-cms, violation [CP], lepton: flavor: universality, semileptonic decay [Xi/c0], KEK-B, CP: violation, ddc:530, +Xi-+muon%2B+neutrino%2Fmu%22">Xi/c0 --> Xi- muon+ neutrino/mu, decay: asymmetry: measured, Xi/c0: branching ratio: measured, branching ratio: measured [Xi/c0], branching ratio: ratio: measured, High Energy Physics::Phenomenology, statistical [error], electron positron: colliding beams, flavor: universality [lepton], asymmetry: CP, error: statistical, colliding beams [electron positron], High Energy Physics::Experiment, ratio: measured [branching ratio], experimental results
Abstract: Physical review letters 127(12), 121803 (2021). doi:10.1103/PhysRevLett.127.121803, Using a data sample of 89.5 fb$^{-1}$ recorded at the energy $\sqrt{s}=10.52$ GeV with the Belle detector at the KEKB $e^+e^-$ collider, we report measurements of branching fractions of semileptonic decays $\Xi_{c}^{0} \to \Xi^{-} \ell^{+} \nu_{\ell}$ ($\ell=e$ or $\mu$). Furthermore, based on an additional data sample of 711 fb$^{-1}$ at $\sqrt{s} = 10.58$ GeV, the $CP$-asymmetry parameter of $\Xi_{c}^{0} \to \Xi^{-} \pi^{+}$ decay is extracted. The branching fractions are measured to be ${\cal B}(\Xi_{c}^{0} \to \Xi^{-} e^{+} \nu_{e})=(1.72 \pm 0.10 \pm 0.12 \pm 0.50)\%$ and ${\cal B}(\Xi_{c}^{0} \to \Xi^{-} \mu^{+} \nu_{\mu})=(1.71 \pm 0.17 \pm 0.13 \pm 0.50)\%$ with much improved precision compared to the current world average. The first and the second uncertainty are statistical and systematic, respectively, while the third one arises due to the uncertainty of the $\Xi_{c}^{0} \to \Xi^{-} \pi^+$ branching fraction. The corresponding ratio ${\cal B}(\Xi_{c}^{0} \to \Xi^{-} e^{+} \nu_{e})/{\cal B}(\Xi_{c}^{0} \to \Xi^{-} \mu^{+} \nu_{\mu})$ is $1.00 \pm 0.11 \pm 0.09$, which is consistent with the expectation of lepton flavor universality. The first measured asymmetry parameter is found to be consistent with zero, ${\cal A}_{CP} = (\alpha_{\Xi^{-}\pi^{+}} + \alpha_{\bar{\Xi}^{+}\pi^{-}})/(\alpha_{\Xi^{-}\pi^{+}} - \alpha_{\bar{\Xi}^{+}\pi^{-}}) = 0.015 \pm 0.052 \pm 0.017$., Published by APS, College Park, Md.
Published: 2021
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39. 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$^{+}$

Author: Belle Collaboration, 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., and Zhukova, V.
Subjects: Physics, ddc:530
Abstract: Using data samples of 89.5 and 711fb$^{-1}$ 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$_{Ξ^{+}π^{-}}$)/(α$_{Ξ^{-}π^{+}}$+α$_{Ξ^{+}π^{-}}$) = 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.
Published: 2021

40. Test of lepton flavor universality and search for lepton flavor violation in B → Kℓℓ decays

Author: Abdesselam, A., Adachi, I., Aulchenko, V., Greenwald, D., Grosse Perdekamp, M., Grygier, J., Grzymkowska, O., Guan, Y., Guido, E., Guo, H., Haba, J., Hamer, P., Hara, K., Aushev, T., Hara, T., Hartbrich, O., Hasegawa, Y., Hasenbusch, J., Hayasaka, K., Hayashii, H., He, X. H., Heck, M., Hedges, M. T., Heffernan, D., Ayad, R., Heider, M., Heller, A., Higuchi, T., Hirose, S., Hoshi, Y., Hoshina, K., Hou, W.-S., Hsiung, Y. B., Hsu, C.-L., Huang, K., Aziz, T., Huschle, M., Igarashi, Y., Iijima, T., Imamura, M., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Babu, V., Iwata, S., Jacobs, W. W., Jaegle, I., Jang, E.-J., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Jones, M., Joo, C. W., Badhrees, I., Joo, K. K., Julius, T., Kahn, J., Kakuno, H., Kaliyar, A. B., Kang, J. H., Kang, K. H., Kapusta, P., Karyan, G., Kataoka, S. U., Bahinipati, S., Kato, Y., Katrenko, P., Kawai, H., Kawasaki, T., Keck, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. H., Kim, D. Y., Bakich, A. M., Kim, H. J., Kim, H.-J., Kim, J. B., Kim, K. T., Kim, S. H., Kim, S. K., Kim, Y. J., Kimmel, T., Kindo, H., Kinoshita, K., Ban, Y., Kleinwort, C., Klucar, J., Kobayashi, N., Kodyš, P., Koga, Y., Konno, T., Korpar, S., Kotchetkov, D., Kouzes, R. T., Križan, P., Bansal, V., Kroeger, R., Krohn, J.-F., Krokovny, P., Kronenbitter, B., Kuhr, T., Kulasiri, R., Kumar, R., Kumita, T., Kurihara, E., Kuroki, Y., Adamczyk, K., Barberio, E., Kuzmin, A., Kvasnička, P., Kwon, Y.-J., Lai, Y.-T., Lalwani, K., Lange, J. S., Lee, I. S., Lee, J. K., Lee, J. Y., Lee, S. C., Barrett, M., Leitgab, M., Leitner, R., Levit, D., Lewis, P., Li, C. H., Li, H., Li, L. K., Li, Y., Li, Y. B., Li Gioi, L., Bartel, W., Libby, J., Lieret, K., Limosani, A., Liptak, Z., Liu, C., Liu, Y., Liventsev, D., Loos, A., Louvot, R., Lu, P.-C., Behera, P., Lubej, M., Luo, T., MacNaughton, J., Masuda, M., Matsuda, T., Matvienko, D., McNeil, J. T., Merola, M., Metzner, F., Miyabayashi, K., Beleño, C., Miyachi, Y., Miyake, H., Miyata, H., Miyazaki, Y., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, H. K., Moon, T. J., Mori, T., Belous, K., Morii, T., Moser, H.-G., Mrvar, M., Müller, T., Muramatsu, N., Mussa, R., Nagasaka, Y., Nakahama, Y., Nakamura, I., Nakamura, K. R., Bennett, J., Nakano, E., Nakano, T., Nakao, M., Nakayama, H., Nakazawa, H., Nanut, T., Nath, K. J., Natkaniec, Z., Nayak, M., Neichi, K., Berger, M., Ng, C., Niebuhr, Carsten, Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Nitoh, O., Ogawa, A., Ogawa, K., Ogawa, S., Bernlochner, F., Ohshima, T., Okuno, S., Olsen, S. L., Ono, H., Onuki, Y., Ostrowicz, W., Oswald, C., Ozaki, H., Pakhlov, P., Pakhlova, G., Besson, D., Pal, B., Pang, T., Panzenböck, E., Pardi, S., Park, C.-S., Park, C. W., Park, H., Park, K. S., Park, S.-H., Patra, S., Ahn, J. K., Bhardwaj, V., Paul, S., Pavelkin, I., Pedlar, T. K., Peng, T., Pesántez, L., Pestotnik, R., Peters, M., Piilonen, L. E., Popov, V., Prasanth, K., Bhuyan, B., Prencipe, E., Prim, M. T., Prothmann, K., Purohit, M. V., Rabusov, A., Rauch, J., Reisert, B., Resmi, P. K., Ribežl, E., Ritter, M., Bilka, T., Rorie, J., Rostomyan, A., Rozanska, M., Russo, G., Sahoo, D., Sahoo, H., Sakai, Y., Salehi, M., Santel, D., Sandilya, Saurabh, Biswal, J., Santelj, L., Sanuki, T., Sasaki, J., Sasao, N., Sato, Y., Savinov, V., Schlüter, T., Schneider, O., Schnell, G., Schram, M., Bloomfield, T., Schueler, J., Schwanda, C., Schwartz, A. J., Schwenker, B., Seidl, R., Seino, Y., Semmler, D., Senyo, K., Seon, O., Seong, I. S., Bobrov, A., Sevior, M. E., Shang, L., Shapkin, M., Shebalin, V., Shen, C. P., Shibata, T.-A., Shibuya, H., Shinomiya, S., Shiu, J.-G., Shwartz, B., Bondar, A., Sibidanov, A., Simon, F., Singh, J. B., Sinha, R., Smith, K., Sokolov, A., Soloviev, Y., Solovieva, E., Stanič, S., Starič, M., Bonvicini, G., Steder, M., Stottler, Z., Strube, J. F., Stypula, J., Sugihara, S., Sugiyama, A., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Bozek, A., Suzuki, K., Suzuki, S., Suzuki, S. Y., Takeichi, H., Takizawa, M., Tamponi, U., Tanaka, M., Tanaka, S., Tanida, K., Bračko, M., Taniguchi, N., Tao, Y., Taylor, G. N., Tenchini, F., Teramoto, Y., Trabelsi, K., Tsuboyama, T., Uchida, M., Ueda, I., Uehara, S., Aihara, H., Braun, N., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Ushiroda, Y., Usov, Y., Vahsen, S. E., Van Hulse, C., Van Tonder, R., Vanhoefer, P., Breibeck, F., Varner, G., Varvell, K. E., Vervink, K., Vinokurova, A., Vorobyev, V., Vossen, A., Wagner, M. N., Waheed, E., Wang, B., Wang, C. H., Browder, T. E., Wang, M.-Z., Wang, P., Wang, X. L., Watanabe, M., Watanabe, Y., Watanuki, S., Wedd, R., Wehle, S., Widmann, E., Wiechczynski, J., Campajola, M., Williams, K. M., Won, E., Yabsley, B. D., Yamada, S., Yamamoto, H., Yamashita, Y., Yang, S. B., Yashchenko, S., Ye, H., Yelton, J., Cao, L., Yin, J. H., Yook, Y., Yuan, C. Z., Yusa, Y., Zakharov, S., Zhang, C. C., Zhang, J., Zhang, L. M., Zhang, Z. P., Zhao, L., Caria, G., Zhilich, V., Zhukova, V., Zhulanov, V., Zivko, T., Zupanc, A., Zwahlen, N., Belle Collaboration, Červenkov, D., Chang, M.-C., Chang, P., Chao, Y., Al Said, S., Cheaib, R., Chekelian, V., Chen, A., Chen, K.-F., Chen, Y., Cheon, B. G., Chilikin, K., Chistov, R., Cho, H. E., Cho, K., Arinstein, K., Chobanova, V., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Crnkovic, J., Cunliffe, S., Czank, T., Danilov, M., Dash, N., Arita, Y., De Nardo, G., Di Carlo, S., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Dossett, D., Drásal, Z., Drutskoy, A., Dubey, S., Asner, D. M., Dutta, D., Eidelman, S., Epifanov, D., Fast, J. E., Feindt, M., Ferber, T., Frey, A., Frost, O., Fulsom, B. G., Garg, R., Atmacan, H., Gaur, V., Gabyshev, N., Garmash, A., Gelb, M., Gemmler, J., Getzkow, D., Giordano, F., Giri, A., Goldenzweig, P., Golob, B., Belle, Collaboration, Campajola, M., De Nardo, G., Di Capua, F., Merola, M., Pardi, S., Russo, G., and Et, Al.
Subjects: FCNC Interaction, B physic, e+-e− Experiments, annihilation [electron positron], 01 natural sciences, mass spectrum [dilepton], B physics, Experiment, Flavor physics, media_common, Physics, e+-e- Experiments, e, e +-e − Experiments, mass dependence, 3. Good health, pair production [B], Isospin, flavor physics, electroproduction [Upsilon(10570)], colliding beams [electron positron], asymmetry [isospin], Nuclear and High Energy Physics, Particle physics, media_common.quotation_subject, Flavour Changing Neutral Currents, BELLE, +, Asymmetry, Standard Model, branching ratio: measured [B], KEKB, KEK-B, +K+electron+positron%22">B --> K electron positron, 0103 physical sciences, +K+muon%2B+muon%22">B --> K muon+ muon, lcsh:Nuclear and particle physics. Atomic energy. Radioactivity, ddc:530, pair production [muon], pair production [electron], 010306 general physics, Muon, 010308 nuclear & particles physics, Branching fraction, Null (mathematics), −, e(+)-e(-) experiments, flavor: universality [lepton], Flavor physic, final state [muon], lcsh:QC770-798, semileptonic decay [B], ratio: measured [branching ratio], statistical, Lepton, experimental results
Abstract: We present measurements of the branching fractions for the decays B → Kμ+μ− and B → Ke+e−, and their ratio (RK), using a data sample of 711 fb−1 that contains 772 × 106$$ B\overline{B} $$ B B ¯ events. The data were collected at the ϒ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. The ratio RK is measured in five bins of dilepton invariant-mass-squared (q2): q2 ∈ (0.1, 4.0), (4.00, 8.12), (1.0, 6.0), (10.2, 12.8) and (> 14.18) GeV2/c4, along with the whole q2 region. The RK value for q2 ∈ (1.0, 6.0) GeV2/c4 is $$ {1.03}_{-0.24}^{+0.28} $$ 1.03 − 0.24 + 0.28 ± 0.01. The first and second uncertainties listed are statistical and systematic, respectively. All results for RK are consistent with Standard Model predictions. We also measure CP-averaged isospin asymmetries in the same q2 bins. The results are consistent with a null asymmetry, with the largest difference of 2.6 standard deviations occurring for the q2 ∈ (1.0, 6.0) GeV2/c4 bin in the mode with muon final states. The measured differential branching fractions, $$ d\mathrm{\mathcal{B}} $$ d ℬ /dq2, are consistent with theoretical predictions for charged B decays, while the corresponding values are below the expectations for neutral B decays. We have also searched for lepton-flavor-violating B → Kμ±e∓ decays and set 90% confidence-level upper limits on the branching fraction in the range of 10−8 for B+ → K+μ±e∓, and B0 → K0μ±e∓ modes.
Published: 2021

41. Measurement of branching fractions and search for $CP$ violation in $D^{0}\to\pi^{+}\pi^{-}\eta$, $D^{0}\to K^{+}K^{-}\eta$, and $D^{0}\to\phi\eta$ at Belle

Author: Li, L. K., Schwartz, A. J., Ayad, R., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Masuda, M., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Babu, V., Mohanty, G. B., Mori, T., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Bahinipati, S., Nishimura, K., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, S.-H., Passeri, A., Paul, S., Pedlar, T. K., Behera, P., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Bennett, J., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Shapkin, M., Bessner, M., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Bilka, T., Takizawa, M., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Vahsen, S. E., Van Tonder, R., Biswal, J., Varner, G., Vinokurova, A., Waheed, E., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanuki, S., Won, E., Yabsley, B. D., Bobrov, A., Yan, W. B., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Bonvicini, G., Kinoshita, K., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., Chekelian, V., Adachi, I., Chen, A., Chen, Y. Q., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Choudhury, S., Aihara, H., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Al Said, S., Eidelman, S., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Giri, A., Goldenzweig, P., Golob, B., Graziani, E., Asner, D. M., Gu, T., Guan, Y., Hadjivasiliou, C., Halder, S., Hayasaka, K., Hou, W.-S., Inami, K., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Atmacan, H., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, K. K., Kang, K. H., Karyan, G., Kiesling, C., Kim, C. H., Kim, D. Y., Aulchenko, V., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Aushev, T., Krokovny, P., Kuhr, T., Kumar, M., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Laurenza, M., Lee, S. C., Li, C. H., Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Belle
Subjects: e+-e− Experiments, BELLE, annihilation [electron positron], electron positron: annihilation, CP [asymmetry], pi+, eta, D0: hadronic decay, violation [CP], pi, High Energy Physics - Experiment, +pi%2B+pi-+eta%22">D0 --> pi+ pi- eta, e+-e�� Experiments, KEK-B, +K%2B+K-+eta%22">D0 --> K+ K- eta, +Phi%281020%29+eta%22">D0 --> Phi(1020) eta, CP: violation, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], ddc:530, branching ratio: measured [D0], hadronic decay [D0], Charm physics, Phi(1020), electron positron: colliding beams, asymmetry: CP, D0: branching ratio: measured, CP violation, colliding beams [electron positron], High Energy Physics::Experiment, Branching fraction, experimental results
Abstract: Journal of high energy physics 09(9), 075 (2021). doi:10.1007/JHEP09(2021)075, We measure the branching fractions and CP asymmetries for the singly Cabibbo-suppressed decays D$^{0}$ �� $^{+}$��$^{��}$��, D$^{0}$ �� K$^{+}$K$^{��}$��, and D$^{0}$ �� , using 980 fb$^{��1}$ of data from the Belle experiment at the KEKB e$^{+}$e$^{��}$ collider. We obtain$ {\displaystyle \begin{array}{c}\mathcal{B}\left({D}^0\to {\pi}^{+}{\pi}^{-}\eta \right)=\left[1.22\pm 0.02\left(\mathrm{stat}\right)\pm 0.02\left(\mathrm{syst}\right)\pm 0.03\left({\mathcal{B}}_{\mathrm{ref}}\right)\right]\times {10}^{-3},\\ {}\mathcal{B}\left({D}^0\to {K}^{+}{K}^{-}\eta \right)=\left[{1.80}_{-0.06}^{+0.07}\left(\mathrm{stat}\right)\pm 0.04\left(\mathrm{syst}\right)\pm 0.05\left({\mathcal{B}}_{\mathrm{ref}}\right)\right]\times {10}^{-4},\\ {}\mathcal{B}\left({D}^0\to \phi \eta \right)=\left[1.84\pm 0.09\left(\mathrm{stat}\right)\pm 0.06\left(\mathrm{syst}\right)\pm 0.05\left({\mathcal{B}}_{\mathrm{ref}}\right)\right]\times {10}^{-4},\end{array}} $where the third uncertainty ($ \mathcal{B} _{ref}$) is from the uncertainty in the branching fraction of the reference mode D$^{0}$ �� K$^{��}$��$^{+}$��. The color-suppressed decay D$^{0}$ �� is observed for the first time, with very high significance. The results for the CP asymmetries are$ {\displaystyle \begin{array}{c}{A}_{CP}\left({D}^0\ {\pi}^{+}{\pi}^{-}\eta \right)=\left[0.9\pm 1.2\left(\mathrm{stat}\right)\pm 0.5\left(\mathrm{syst}\right)\right]\%,\\ {}{A}_{CP}\left({D}^0\to {K}^{+}{K}^{-}\eta \right)=\left[-1.4\pm 3.3\left(\mathrm{stat}\right)\pm 1.1\left(\mathrm{syst}\right)\right]\%,\\ {} ACP\ \left({D}^0\to \phi \eta \right)=\left[-1.9\pm 4.4\left(\mathrm{stat}\right)\pm 0.6\left(\mathrm{syst}\right)\right]\%.\end{array}} $The results for D$^{0}$ �� $^{+}$��$^{��}$�� are a significant improvement over previous results. The branching fraction and A$_{CP}$ results for D$^{0}$ �� K$^{+}$K$^{��}$��, and the ACP result for D$^{0}$ �� , are the first such measurements. No evidence for CP violation is found in any of these decays.[graphic not available: see fulltext], Published by SISSA, [Trieste]
Published: 2021

42. Study of $\overline{B}{}^0\rightarrow D^{+}h^{-} (h=K/\pi)$ decays at Belle

Author: Belle Collaboration, Waheed, E., Urquijo, P., Adachi, I., Aihara, H., Said, S. Al, Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Bahinipati, S., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bodrov, D., Borah, J., Bozek, A., Bracko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Cervenkov, D., Chang, M. -C., Chang, P., 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., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Dolezal, 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., Gu, T., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., 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., Joo, K. K., Kaliyar, A. B., Kang, K. H., Kichimi, H., Kim, C. H., Kim, D. Y., Kim, K. -H., Kim, K. T., Kim, Y. -K., Kinoshita, K., Kodys, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Krizan, P., Kroeger, R., Krokovny, P., Kumar, M., Kumar, R., Kumara, K., Kwon, Y. -J., Lai, Y. -T., Lange, J. S., Laurenza, M., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Gioi, L. Li, Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mussa, R., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Park, H., Park, S. -H., Passeri, A., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Rohrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J. -G., Simon, F., Singh, J. B., Sokolov, A., Solovieva, E., Staric, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Wang, C. H., Wang, E., Wang, M. -Z., Wang, P., Wang, X. L., Wiechczynski, J., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: +D%2B+K%22">anti-B0 --> D+ K, BELLE, annihilation [electron positron], electron positron: annihilation, anti-B0: branching ratio: measured, High Energy Physics - Experiment, KEK-B, branching ratio: measured [anti-B0], D+: hadronic decay, ddc:530, +D%2B+pi%22">anti-B0 --> D+ pi, B: pair production, branching ratio: ratio: measured, branching ratio, ratio, statistical [error], +2pi%2B+K%22">D+ --> 2pi+ K, electron positron: colliding beams, hadronic decay [anti-B0], suppression, pair production [B], error: statistical, anti-B0: hadronic decay, hadronic decay [D+], colliding beams [electron positron], ratio: measured [branching ratio], statistical, experimental results
Abstract: Physical review / D 105(1), 012003 (2022). doi:10.1103/PhysRevD.105.012003, We present a measurement of the branching fractions of the Cabibbo favored $\overline{B}{}^0\rightarrow D^{+}\pi^{-}$ and the Cabibbo suppressed $\overline{B}{}^0\rightarrow D^{+}K^{-}$ decays. We find $\mathcal{B}(\overline{B}{}^0\rightarrow D^{+}\pi^{-}) = (2.48 \pm 0.01 \pm 0.09 \pm 0.04) \times 10^{-3}$ and $\mathcal{B}(\overline{B}{}^0\rightarrow D^{+}K^{-})= (2.03 \pm 0.05 \pm 0.07 \pm 0.03) \times 10^{-4}$ decays, where the first uncertainty is statistical, the second is systematic, and the third uncertainty is due to the $D^{+} \rightarrow K^{-}\pi^{+}\pi^{+}$ branching fraction. The ratio of branching fractions of $\overline{B}{}^0\rightarrow D^{+}K^{-}$ and $\overline{B}{}^0\rightarrow D^{+}\pi^{-}$ is measured to be $R^{D} = [8.19 \pm 0.20(\rm stat) \pm 0.23(\rm syst)] \times 10^{-2} $. These measurements are performed using the full Belle data set, which corresponds to $772 \times 10^{6} B\overline{B} $ pairs., Published by Inst., Melville, NY
Published: 2021
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43. Measurement of the masses and widths of the Σc(2455)⁺ andΣc(2520)⁺ baryons

Author: Belle Collaboration, Yelton, J., Adachi, I., Ahn, J. K., 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., Bhardwaj, V., Bhuyan, B., Bilka, T., Biswal, 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., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Nardo, G., De Pietro, G., Dhamija, R., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Epifanov, D., Ferber, T., Ferlewicz, D., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Graziani, E., Gu, T., Gudkova, K., Hadjivasiliou, C., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hou, W.-S., Hsu, C.-L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Kaliyar, A. B., Kang, K. H., Kato, Y., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kumara, K., Kwon, Y.-J., Lange, J. S., Laurenza, M., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., McNeil, J. T., Merola, M., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Moon, T. J., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, H., Park, S.-H., 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., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tao, Y., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Vinokurova, A., Waheed, E., Wang, C. H., Wang, D., Wang, E., Wang, M.-Z., Wang, P., Watanabe, M., Watanuki, S., Won, E., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Published: 2021
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44. Measurement of branching fraction and search for $C P$ violation in $B → ϕ ϕ K$

Author: Mohanty, Subhashree, Kaliyar, A. B., Aulchenko, V., Matsuda, T., Merola, M., Miyabayashi, K., Mizuk, R., Moon, T. J., Mussa, R., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Aushev, T., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Onuki, Y., Oskin, P., Pakhlova, G., Pardi, S., Park, C. W., Park, H., Aziz, T., Park, S.-H., Patra, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Roehrken, Markus, Babu, V., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Sanuki, T., Savinov, V., Schnell, G., Bahinipati, S., Schueler, J., Schwanda, C., Schwartz, A. J., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shiu, J.-G., Shwartz, B., Behera, P., Simon, F., Solovieva, E., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tanida, K., Tao, Y., Tenchini, Francesco, Bessner, M., Uchida, M., Unno, Y., Uno, S., Usov, Y., Vahsen, S. E., Van Tonder, R., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Bhardwaj, V., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Wang, X. L., Watanuki, S., Wiechczynski, J., Won, E., Xu, X., Yabsley, B. D., Bilka, T., Yan, W., Ye, Hua, Yin, J. H., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Biswal, J., Gaur, V., Bobrov, A., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Mohanty, G. B., Cho, K., Cho, S.-J., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Nardo, G., Adachi, I., Dhamija, R., Di Capua, F., Doležal, Z., Dong, T. V., Eidelman, S., Ferber, T., Fulsom, B. G., Gabyshev, N., Garmash, A., Giri, A., Adamczyk, K., Goldenzweig, P., Golob, B., Grzymkowska, O., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Hayasaka, K., Hayashii, H., Hou, W.-S., Aihara, H., Hsu, C.-L., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joo, K. K., Al Said, S., Kang, K. H., Karyan, G., Kim, B. H., Kim, C. H., Kim, D. Y., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Asner, D. M., Korpar, S., Kotchetkov, D., Križan, P., Krokovny, P., Kulasiri, R., Kumar, M., Kumar, R., Kumara, K., Kwon, Y.-J., Lalwani, K., Atmacan, H., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liptak, Z., Liventsev, D., MacQueen, C., and Masuda, M.
Subjects: +K+2Phi%281020%29%22">B --> K 2Phi(1020), Upsilon(10570): electroproduction, B: hadronic decay, asymmetry: measured [decay], BELLE, annihilation [electron positron], electron positron: annihilation, CP [asymmetry], violation [CP], KEK-B, CP: violation, Particle Physics Experiments, ddc:530, decay: asymmetry: measured, hadronic decay [B], B: pair production, Phi(1020): pair production, electron positron: colliding beams, pair production [Phi(1020)], asymmetry: CP, pair production [B], electroproduction [Upsilon(10570)], colliding beams [electron positron], branching ratio, experimental results
Abstract: Physical review / D 103(5), 052013 (1-9) (2021). doi:10.1103/PhysRevD.103.052013, We report the measurement of branching fractions and CP-violation asymmetries in B→ϕϕK decays based on a 711 fb−1 data sample containing 772×106 B¯B events. The data were recorded at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e− collider. For B+→ϕϕK+, the branching fraction and CP-violation asymmetry measured below the ηc threshold (mϕϕ, Published by Inst., Woodbury, NY
Published: 2021

45. Measurement of the Resonant and Non-Resonant Branching Ratios in $\Xi_{c}^{0} \rightarrow \Xi^{0} K^+ K^-$

Author: McNeil, J. T., Yelton, J., Aulchenko, V., Libby, J., Lieret, K., Liptak, Z., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Aushev, T., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mohanty, S., Moon, T. J., Mussa, R., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Ayad, R., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlova, G., Pardi, S., Babu, Varghese, Park, H., Park, S. H., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Bahinipati, S., Roehrken, Markus, Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Santelj, L., Savinov, V., Behera, P., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Sharma, C., Shebalin, V., Shiu, J. G., Bessner, M., Simon, F., Solovieva, E., Staric, M., Stottler, Z. S., Strube, J. F., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Bilka, T., Tao, Y., Tenchini, Francesco, Uchida, M., Uehara, S., Unno, Y., Uno, S., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Biswal, J., Wang, C. H., Wang, E., Wang, M. Z., Wang, P., Watanabe, M., Watanuki, S., Won, E., Xu, X., Yabsley, B. D., Yan, W., Bobrov, A., Ye, Hua, Yin, J. H., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Bennett, J., Bonvicini, G., Bozek, A., Bracko, M., Browder, T. E., Campajola, M., Cao, L., Cervenkov, D., Chang, P., Chekelian, V., Chen, A., Adachi, I., Cheon, B. G., Chilikin, K., Cho, K., Cho, S. J., Choi, S. K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Adamczyk, K., Dash, N., De Nardo, G., Dhamija, R., Di Capua, F., Dolezal, Z., Dong, T. V., Eidelman, S., Ferber, T., Fulsom, B. G., Gaur, V., Ahn, J. K., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, Pablo, Golob, B., Grzymkowska, O., Guan, Y., Gudkova, K., Hadjivasiliou, C., Hayasaka, K., Aihara, H., Hayashii, H., Hou, W. S., Hsu, C. L., Huang, K., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Jacobs, W. W., Jeon, H. B., Said, S. Al, Jia, S., Jin, Y., Joo, K. K., Kaliyar, A. B., Kang, K. H., Karyan, G., Kichimi, H., Kim, B. H., Kim, C. H., Kim, D. Y., Asner, D. M., Kim, S. H., Kim, Y. K., Kinoshita, K., Kodys, P., Konno, T., Korpar, S., Krizan, P., Kroeger, R., Krokovny, P., Kuhr, T., Atmacan, H., Kulasiri, R., Kumar, M., Kumara, K., Kwon, Y. J., Lalwani, K., Lee, S. C., Li, J., Li, L. K., Li, Y. B., Gioi, L. Li, Laboratoire de Physique des 2 Infinis Irène Joliot-Curie (IJCLab), Institut National de Physique Nucléaire et de Physique des Particules du CNRS (IN2P3)-Université Paris-Saclay-Centre National de la Recherche Scientifique (CNRS), and Belle
Subjects: pair production [K], Phi(1020): polarization, +K%2B+K%22">Phi(1020) --> K+ K, BELLE, annihilation [electron positron], electron positron: annihilation, +Xi0+K%2B+K%22">Xi/c0 --> Xi0 K+ K, mass spectrum: (K+ K-), High Energy Physics - Experiment, Xi/c: hadronic decay, branching ratio [Xi/c], KEK-B, K: pair production, [PHYS.HEXP]Physics [physics]/High Energy Physics - Experiment [hep-ex], Particle Physics Experiments, ddc:530, +Xi0+Phi%281020%29%22">Xi/c0 --> Xi0 Phi(1020), Xi/c: branching ratio, background, branching ratio: ratio: measured, (K+ K-) [mass spectrum], amplitude analysis, electron positron: colliding beams, hadronic decay [Xi/c], hadronic decay [Phi(1020)], polarization [Phi(1020)], colliding beams [electron positron], High Energy Physics::Experiment, ratio: measured [branching ratio], Phi(1020): hadronic decay, experimental results
Abstract: Physical review / D 103(11), 112002 (2021). doi:10.1103/PhysRevD.103.112002, Using the entire data sample of $980$ $fb^{-1}$ integrated luminosity collected with the Belle detector at the KEKB asymmetric-energy $e^{+}e^{-}$ collider, we present an amplitude analysis measuring the branching fractions of the Cabibbo-allowed, $W$-exchange resonant decay $\Xi_{c}^{0} \rightarrow \Xi^{0} \phi (\to K^+ K^-)$ with a polarized $\phi$ and the non-resonant decay via a direct process $\Xi_{c}^{0} \rightarrow \Xi^{0} K^+ K^-$. We present these measurements, relative to the normalization mode $\Xi^{-}\pi^{+}$, and find branching ratios $\frac{\mathcal{B}(\Xi_{c}^{0} \rightarrow \Xi^{0} \phi (\rightarrow K^{+}K^{-}))}{\mathcal{B}(\Xi_{c}^{0} \rightarrow \Xi^{-} \pi^{+})} = 0.036 \pm 0.004 (stat.) \pm 0.002 (syst.)$ and $\frac{\mathcal{B}(\Xi_{c}^{0} \rightarrow \Xi^{0} K^{+} K^{-})}{\mathcal{B}(\Xi_{c}^{0} \rightarrow \Xi^{-} \pi^{+})} = 0.039 \pm 0.004 (stat.) \pm 0.002 (syst.)$ which suggest that only minor cusping peaks occur in the combinatorial background of $\Omega^{*-} \to \Xi^{0}K^{-}$ due to these $\Xi_{c}^{0}$ decays., Published by APS, Melville, NY
Published: 2021
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46. First determination of the spin and parity of the charmed-strange baryon Ξ$_{c}$(2970)$^{+}$

Author: Belle Collaboration, Moon, T. J., Tanida, K., Kato, Y., Kim, S. K., Adachi, I., Ahn, J. K., Aihara, H., Al Said, S., Asner, D. M., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Beleño, C., Bennett, J., Bessner, M., Bhuyan, B., Bilka, T., Biswal, J., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Cao, L., Červenkov, D., Chang, M.-C., Chang, P., Chen, A., Cheon, B. G., Chilikin, K., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Dash, N., De Nardo, G., Di Capua, F., Doležal, Z., Dong, T. V., Dossett, D., Dubey, S., Eidelman, S., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Hadjivasiliou, C., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W.-S., Hsu, C.-L., Inami, K., Inguglia, G., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, K. K., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, D. Y., Kim, K. T., Kim, S. H., Kim, Y. J., Kim, Y.-K., Kimmel, T. D., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, R., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lee, I. S., Lee, J. Y., Lee, S. C., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Liptak, Z., Liventsev, D., Luo, T., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mohanty, S., Mori, T., Mussa, R., Nakano, T., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Ogawa, K., Ogawa, S., Ono, H., 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., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Santelj, L., Savinov, V., Schnell, G., Schueler, J., Schwanda, C., Seidl, R., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Shen, C. P., Shiu, J.-G., Shwartz, B., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumisawa, K., Sumiyoshi, T., Sutcliffe, W., Takizawa, M., Tamponi, U., Tenchini, F., Trabelsi, K., Uchida, M., Uehara, S., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Vahsen, S. E., Van Tonder, R., Varner, G., Vinokurova, A., Vorobyev, V., Vossen, A., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Wehle, S., Wiechczynski, J., Xu, X., Yabsley, B. D., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yuan, C. Z., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: Physics, ddc:530
Published: 2021

47. Measurements of partial branching fractions of inclusive B → X$_{U}$l$^{+}$v$_{l}$ decays with hadronic tagging

Author: Belle Collaboration, Cao, L., Sutcliffe, W., Van Tonder, R., Bernlochner, F. U., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Bauer, M., Behera, P., Belous, K., Bennett, J., Bessner, M., Bhardwaj, V., Bilka, T., Biswal, J., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., 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., Di Capua, F., Dingfelder, J., Doležal, Z., Dong, T. V., Dubey, S., Eidelman, S., Epifanov, D., Ferber, T., Ferlewicz, D., Frey, A., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Guan, Y., Hadjivasiliou, C., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hernandez Villanueva, M., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Jeon, H. B., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Kang, K. H., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, B. H., Kim, C. H., Kim, D. Y., Kim, H. J., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kotchetkov, D., 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., Lewis, P., Li, C. H., Li, J., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liptak, Z., Liventsev, D., MacNaughton, J., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Moon, T. J., Mori, T., Mrvar, M., Mussa, R., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, C. W., Park, H., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Ritter, M., Röhrken, M., Rostomyan, A., Rout, N., Rozanska, M., Russo, G., Sahoo, D., Sakai, Y., 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., Simon, F., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Urquijo, P., Usov, Y., Vahsen, S. E., Varner, G., Varvell, K. E., Vinokurova, A., Vorobyev, V., Vossen, A., Waheed, E., Wang, C. H., Wang, E., Wang, M.-Z., Wang, P., Watanabe, M., Watanuki, S., Wehle, S., Wiechczynski, J., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Yin, J. H., Yuan, C. Z., Yusa, Y., Zhang, Z. P., Zhilich, V., Zhukova, V., and Zhulanov, V.
Subjects: Physics, ddc:530
Published: 2021
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48. Search for the decay $B_ s^ 0 → η ′ η$

Author: Nisar, N. K., Savinov, V., Bahinipati, S., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Lange, J. S., Lee, S. C., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Behera, P., Liventsev, D., MacQueen, C., Masuda, M., Matsuda, T., Matvienko, D., Merola, M., Metzner, F., Mizuk, R., Mohanty, G. B., Mohanty, S., Bennett, J., Nakao, M., Natochii, A., Nayak, L., Nayak, M., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Onuki, Y., Oskin, P., Bessner, M., Pakhlov, P., Pakhlova, G., Pang, T., Pardi, S., Park, H., Park, S.-H., Patra, S., Paul, S., Pedlar, T. K., Pestotnik, R., Bhardwaj, V., Piilonen, L. E., Podobnik, T., Prencipe, E., Prim, M. T., Röhrken, M., Rostomyan, A., Rout, N., Russo, G., Sahoo, D., Sandilya, S., Bhuyan, B., Sangal, A., Santelj, L., Sanuki, T., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Sevior, M. E., Shapkin, M., Bilka, T., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Simon, F., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Sumihama, M., Biswal, J., Sumiyoshi, T., Takizawa, M., Tamponi, U., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Bonvicini, G., Urquijo, P., Van Tonder, R., Varner, G., Vossen, A., Waheed, E., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanuki, S., Bozek, A., Won, E., Xu, X., Yabsley, B. D., Yan, W., Yang, S. B., Ye, H., Zhang, Z. P., Zhilich, V., Zhukova, V., Belle Collaboration, Adachi, I., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chang, M.-C., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Aihara, H., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Das, S., Dash, N., De Nardo, G., Dhamija, R., Al Said, S., Di Capua, F., Doležal, Z., Dong, T. V., Dubey, S., Eidelman, S., Epifanov, D., Ferber, T., Ferlewicz, D., Frey, A., Fulsom, B. G., Asner, D. M., Garg, R., Gaur, V., Gabyshev, N., Garmash, A., Giri, A., Goldenzweig, P., Guan, Y., Gudkova, K., Hadjivasiliou, C., Halder, S., Atmacan, H., Hara, T., Hartbrich, O., Hayasaka, K., Hayashii, H., Hedges, M. T., Hsu, C.-L., Iijima, T., Inami, K., Ishikawa, A., Itoh, R., Aushev, T., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jia, S., Jin, Y., Joo, C. W., Joo, K. K., Kahn, J., Kaliyar, A. B., Kang, K. H., Ayad, R., Karyan, G., Kawasaki, T., Kichimi, H., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, S. H., Kim, Y.-K., Kinoshita, K., Kodyš, P., Babu, V., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., and Kumar, R.
Subjects: KEK-B, High Energy Physics::Experiment, ddc:530, BELLE, branching ratio, Upsilon(10870)
Abstract: We report the results of the first search for the decay $B_s^0 \rightarrow \eta^\prime \eta$ using $121.4~\textrm{fb}^{-1}$ of data collected at the $\Upsilon(5S)$ resonance with the Belle detector at the KEKB asymmetric-energy $e^+e^-$ collider. We observe no significant signal and set a 90\% confidence-level upper limit of %$7.1 \times 10^{-5}$ $6.5 \times 10^{-5}$ on the branching fraction of this decay.
Published: 2021
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49. Measurement of branching fractions and search for CP violation in D$^{0}$ → π$^{+}$ π$^{-}$ η, D$^{0}$ → K$^{+}$ K$^{-}$ η, and D$^{0}$ → ϕη at Belle

Author: Belle Collaboration, Li, L. K., Schwartz, A. J., Kinoshita, K., Adachi, I., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aulchenko, V., Aushev, T., Ayad, R., Babu, V., Bahinipati, S., Behera, P., Bennett, J., Bessner, M., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Branchini, P., Browder, T. E., Budano, A., Campajola, M., Červenkov, D., Chang, M.-C., Chang, P., Chekelian, V., Chen, A., Chen, Y. Q., 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., Eidelman, S., Epifanov, D., Ferber, T., Fulsom, B. G., Garg, R., Gaur, V., Giri, A., Goldenzweig, P., Golob, B., Graziani, E., Gu, T., Guan, Y., Hadjivasiliou, C., Halder, S., Hayasaka, K., Hou, W.-S., Inami, K., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jang, E.-J., Jia, S., Jin, Y., Joo, K. K., Kang, K. H., Karyan, G., Kiesling, C., Kim, C. H., Kim, D. Y., Kim, K.-H., Kim, S. H., Kim, Y.-K., Kodyš, P., Konno, T., Korobov, A., Korpar, S., Kovalenko, E., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kumar, M., Kumara, K., Kuzmin, A., Kwon, Y.-J., Lalwani, K., Laurenza, M., Lee, S. C., Li, C. H., Gioi, L. L., Libby, J., Lieret, K., Liventsev, D., Masuda, M., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Mizuk, R., Mohanty, G. B., Mori, T., Nakao, M., Natkaniec, Z., Natochii, A., Nayak, L., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ono, H., Oskin, P., Pakhlov, P., Pakhlova, G., Pardi, S., Park, S.-H., Passeri, A., Paul, S., Pedlar, T. K., Pestotnik, R., Piilonen, L. E., Podobnik, T., Popov, V., Prencipe, E., Prim, M. T., Rout, N., Russo, G., Sahoo, D., Sakai, Y., Sandilya, S., Sangal, A., Santelj, L., Sanuki, T., Savinov, V., Schnell, G., Schwanda, C., Seino, Y., Senyo, K., Shapkin, M., Sharma, C., Shen, C. P., Shiu, J.-G., Shwartz, B., Sokolov, A., Solovieva, E., Starič, M., Stottler, Z. S., Sumihama, M., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Uchida, M., Uglov, T., Unno, Y., Uno, K., Uno, S., Vahsen, S. E., Van Tonder, R., Varner, G., Vinokurova, A., Waheed, E., Wang, C. H., Wang, M.-Z., Wang, P., Wang, X. L., Watanuki, S., Won, E., Yabsley, B. D., Yan, W. B., Yang, S. B., Ye, H., Yelton, J., Yin, J. H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Abstract: We measure the branching fractions and CP asymmetries for the singly Cabibbo-suppressed decays D$^{0}$ → π$^{+}$ π$^{-}$ η, D$^{0}$ → K$^{+}$ K$^{-}$ η, and D$^{0}$ → ϕη, using 980 fb$^{-1}$ of data from the Belle experiment at the KEKB e$^{+}$e$^{-}$ collider. We obtain B(D$^{0}$ → π$^{+}$ π$^{-}$ η) = [1.22 ± 0.02 (stat) ± 0.02 (syst) ± 0.03(B$_{ref}$)] x 10$^{-3}$ B(D$^{0}$ → K$^{+}$ K$^{-}$ η) = [1.22$_{-0.06}$$^{+0.07}$(stat) ± 0.04 (syst) ± 0.05(B$_{ref}$)] x 10$^{-4}$ B(D$^{0}$ → ϕη) = [1.84 ± 0.09 (stat) ± 0.06 (syst) ± 0.05(B$_{ref}$)] x 10$^{-4}$ where the third uncertainty (B$_{ref}$) is from the uncertainty in the branching fraction of the reference mode D$^{0}$ → K$^{-}$π$^{+}$η . The color-suppressed decay D$^{0}$ → ϕη is observed for the first time, with very high significance. The results for the CP asymmetries are A$_{CP}$(D$^{0}$ → π$^{+}$ π$^{-}$ η) = [0.9 ± 1.2 (stat) ± 0.5 (syst)]%, A$_{CP}$(D$^{0}$ → K$^{+}$ K$^{-}$ η) = [-1.4 ± 3.3 (stat) ± 0.6 (syst)]%, A$_{CP}$(D$^{0}$ → ϕη) = [-1.9 ± 4.4 (stat) ± 0.6 (syst)]%, The results for D$^{0}$ → π$^{+}$ π$^{-}$ η are a significant improvement over previous results. The branching fraction and A$_{CP}$ results for D$^{0}$ → K$^{+}$ K$^{-}$ η, and the ACP result for D$^{0}$ → ϕη, are the first such measurements. No evidence for CP violation is found in any of these decays.
Published: 2021

50. Erratum: Measurement of the CKM matrix element |V$_{cb}$| from B$^{0}$ → D$^{*-}$ l$^{+}$v$_{l}$ at Belle [Phys. Rev. / D, vol. 100, Art.Nr. 052007, 2019; DOI: 10.1103/PhysRevD.100.052007 ]

Author: Belle Collaboration, Waheed, E., Urquijo, P., Ferlewicz, D., Adachi, I., Adamczyk, K., Aihara, H., Al Said, S., Asner, D. M., Atmacan, H., Aushev, T., Ayad, R., Babu, V., Badhrees, I., Bansal, V., Behera, P., Beleño, C., Bernlochner, F., Bhuyan, B., Bilka, T., Biswal, J., Bobrov, A., Bonvicini, G., Bozek, A., Bračko, M., Browder, T. E., Campajola, M., Červenkov, D., Chang, P., Chekelian, V., Chen, A., Cheon, B. G., Chilikin, K., Cho, H. E., Cho, K., Choi, S.-K., Choi, Y., Choudhury, S., Cinabro, D., Cunliffe, S., Di Carlo, S., Doležal, Z., Dong, T. V., Dossett, D., Eidelman, S., Epifanov, D., Fast, J. E., Fulsom, B. G., Garg, R., Gaur, V., Garmash, A., Giri, A., Goldenzweig, P., Golob, B., Grzymkowska, O., Haba, J., Hara, T., Hayasaka, K., Hayashii, H., Hedges, M. T., Hou, W.-S., Hsu, C.-L., Iijima, T., Inami, K., Inguglia, G., Ishikawa, A., Iwasaki, M., Iwasaki, Y., Jacobs, W. W., Jeon, H. B., Jia, S., Jin, Y., Joffe, D., Joo, K. K., Kahn, J., Kaliyar, A. B., Karyan, G., Kawasaki, T., Kim, C. H., Kim, D. Y., Kim, K. T., Kim, S. H., Kinoshita, K., Kodyš, P., Korpar, S., Kotchetkov, D., Križan, P., Kroeger, R., Krokovny, P., Kuhr, T., Kulasiri, R., Kuzmin, A., Kwon, Y.-J., Lange, J. S., Lee, J. Y., Lee, S. C., Li, C. H., Li, L. K., Li, Y. B., Li Gioi, L., Libby, J., Lieret, K., Liventsev, D., Lu, P.-C., Luo, T., MacNaughton, J., Masuda, M., Matvienko, D., Merola, M., Metzner, F., Miyabayashi, K., Miyata, H., Mizuk, R., Mohanty, G. B., Mori, T., Mussa, R., Nakamura, I., Nakao, M., Nath, K. J., Natkaniec, Z., Nayak, M., Niiyama, M., Nisar, N. K., Nishida, S., Nishimura, K., Ogawa, S., Ono, H., Pakhlov, P., Pakhlova, G., Pal, B., Pardi, S., Park, H., Park, S.-H., Paul, S., Pestotnik, R., Piilonen, L. E., Popov, V., Prencipe, E., Prim, M., Rostomyan, A., Russo, G., Sakai, Y., Salehi, M., Sandilya, S., Sanuki, T., Savinov, V., Schneider, O., Schnell, G., Schueler, J., Schwanda, C., Seino, Y., Senyo, K., Seon, O., Sevior, M. E., Shebalin, V., Shen, C. P., Shiu, J.-G., Shwartz, B., Simon, F., Sokolov, A., Solovieva, E., Stanič, S., Starič, M., Stottler, Z. S., Strube, J. F., Sumiyoshi, T., Takizawa, M., Tanida, K., Tenchini, F., Trabelsi, K., Uchida, M., Uglov, T., Unno, Y., Uno, S., Usov, Y., Varner, G., Varvell, K. E., Vinokurova, A., Vossen, A., Wang, C. H., Wang, M.-Z., Wang, P., Won, E., Yang, S. B., Ye, H., Yusa, Y., Zhang, Z. P., Zhilich, V., and Zhukova, V.
Subjects: Physics, ddc:530
Published: 2021

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