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1. Observation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e $$ {\textrm{D}}^0\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{-}{\pi}^0{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$ and D + → K S 0 π + π − e + ν e $$ {\textrm{D}}^{+}\to {\textrm{K}}_{\textrm{S}}^0{\pi}^{+}{\pi}^{-}{\textrm{e}}^{+}{\nu}_{\textrm{e}} $$

Author: The BESIII collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, M. R. An, Q. An, Y. Bai, O. Bakina, I. Balossino, Y. Ban, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Cetin, J. F. Chang, T. T. Chang, W. L. Chang, G. R. Che, G. Chelkov, C. Chen, Chao Chen, G. Chen, H. S. Chen, M. L. Chen, S. J. Chen, S. M. Chen, T. Chen, X. R. Chen, X. T. Chen, Y. B. Chen, Y. Q. Chen, Z. J. Chen, W. S. Cheng, S. K. Choi, X. Chu, G. Cibinetto, S. C. Coen, F. Cossio, J. J. Cui, H. L. Dai, J. P. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, B. Ding, X. X. Ding, Y. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, S. X. Du, Z. H. Duan, P. Egorov, Y. L. Fan, J. Fang, S. S. Fang, W. X. Fang, Y. Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, K. Fischer, M. Fritsch, C. Fritzsch, C. D. Fu, J. L. Fu, Y. W. Fu, H. Gao, Y. N. Gao, Yang Gao, S. Garbolino, I. Garzia, P. T. Ge, Z. W. Ge, C. Geng, E. M. Gersabeck, A. Gilman, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. H. Gu, Y. T. Gu, C. Y. Guan, Z. L. Guan, A. Q. Guo, L. B. Guo, M. J. Guo, R. P. Guo, Y. P. Guo, A. Guskov, T. T. Han, W. Y. Han, X. Q. Hao, F. A. Harris, K. K. He, K. L. He, F. H. H. Heinsius, C. H. Heinz, Y. K. Heng, C. Herold, T. Holtmann, P. C. Hong, G. Y. Hou, X. T. Hou, Y. R. Hou, Z. L. Hou, H. M. Hu, J. F. Hu, T. Hu, Y. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, X. T. Huang, Y. P. Huang, T. Hussain, N. Hüsken, W. Imoehl, J. Jackson, S. Jaeger, S. Janchiv, J. H. Jeong, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, Y. Y. Ji, X. Q. Jia, Z. K. Jia, H. J. Jiang, P. C. Jiang, S. S. Jiang, T. J. Jiang, X. S. Jiang, Y. Jiang, J. B. Jiao, Z. Jiao, S. Jin, Y. Jin, M. Q. Jing, T. Johansson, X. Kui, S. Kabana, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, R. Kappert, M. Kavatsyuk, B. C. Ke, A. Khoukaz, R. Kiuchi, R. Kliemt, O. B. Kolcu, B. Kopf, M. Kuessner, A. Kupsc, W. Kühn, J. J. Lane, P. Larin, A. Lavania, L. Lavezzi, T. T. Lei, Z. H. Lei, H. Leithoff, M. Lellmann, T. Lenz, C. Li, C. H. Li, Cheng Li, D. M. Li, F. Li, G. Li, H. Li, H. B. Li, H. J. Li, H. N. Li, Hui Li, J. R. Li, J. S. Li, J. W. Li, K. L. Li, Ke Li, L. J. Li, L. K. Li, Lei Li, M. H. Li, P. R. Li, Q. X. Li, S. X. Li, T. Li, W. D. Li, W. G. Li, X. H. Li, X. L. Li, Xiaoyu Li, Y. G. Li, Z. J. Li, Z. X. Li, C. Liang, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, L. Z. Liao, Y. P. Liao, J. Libby, A. Limphirat, D. X. Lin, T. Lin, B. J. Liu, B. X. Liu, C. Liu, C. X. Liu, F. H. Liu, Fang Liu, Feng Liu, G. M. Liu, H. Liu, H. B. Liu, H. M. Liu, Huanhuan Liu, Huihui Liu, J. B. Liu, J. L. Liu, J. Y. Liu, K. Liu, K. Y. Liu, Ke Liu, L. Liu, L. C. Liu, Lu Liu, M. H. Liu, P. L. Liu, Q. Liu, S. B. Liu, T. Liu, W. K. Liu, W. M. Liu, X. Liu, Y. Liu, Y. B. Liu, Z. A. Liu, Z. Q. Liu, X. C. Lou, F. X. Lu, H. J. Lu, J. G. Lu, X. L. Lu, Y. Lu, Y. P. Lu, Z. H. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lyu, Y. F. Lyu, F. C. Ma, H. L. Ma, J. L. Ma, L. L. Ma, M. M. Ma, Q. M. Ma, R. Q. Ma, R. T. Ma, X. Y. Ma, Y. Ma, Y. M. Ma, F. E. Maas, M. Maggiora, S. Malde, Q. A. Malik, A. Mangoni, Y. J. Mao, Z. P. Mao, S. Marcello, Z. X. Meng, J. G. Messchendorp, G. Mezzadri, H. Miao, T. J. Min, R. E. Mitchell, X. H. Mo, N. Yu. Muchnoi, J. Muskalla, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, X. Pan, Y. Pan, A. Pathak, P. Patteri, Y. P. Pei, M. Pelizaeus, H. P. Peng, K. Peters, J. L. Ping, R. G. Ping, S. Plura, S. Pogodin, V. Prasad, F. Z. Qi, H. Qi, H. R. Qi, M. Qi, T. Y. Qi, S. Qian, W. B. Qian, C. F. Qiao, J. J. Qin, L. Q. Qin, X. P. Qin, X. S. Qin, Z. H. Qin, J. F. Qiu, S. Q. Qu, C. F. Redmer, K. J. Ren, A. Rivetti, V. Rodin, M. Rolo, G. Rong, Ch. Rosner, S. N. Ruan, N. Salone, A. Sarantsev, Y. Schelhaas, K. Schoenning, M. Scodeggio, K. Y. Shan, W. Shan, X. Y. Shan, J. F. Shangguan, L. G. Shao, M. Shao, C. P. Shen, H. F. Shen, W. H. Shen, X. Y. Shen, B. A. Shi, H. C. Shi, J. L. Shi, J. Y. Shi, Q. Q. Shi, R. S. Shi, X. Shi, J. J. Song, T. Z. Song, W. M. Song, Y. J. Song, Y. X. Song, S. Sosio, S. Spataro, F. Stieler, Y. J. Su, G. B. Sun, G. X. Sun, H. Sun, H. K. Sun, J. F. Sun, K. Sun, L. Sun, S. S. Sun, T. Sun, W. Y. Sun, Y. Sun, Y. J. Sun, Y. Z. Sun, Z. T. Sun, Y. X. Tan, C. J. Tang, G. Y. Tang, J. Tang, Y. A. Tang, L. Y. Tao, Q. T. Tao, M. Tat, J. X. Teng, V. Thoren, W. H. Tian, Y. Tian, Z. F. Tian, I. Uman, S. J. Wang, B. Wang, B. L. Wang, Bo Wang, C. W. Wang, D. Y. Wang, F. Wang, H. J. Wang, H. P. Wang, J. P. Wang, K. Wang, L. L. Wang, M. Wang, Meng Wang, S. Wang, T. Wang, T. J. Wang, W. Wang, W. P. Wang, X. Wang, X. F. Wang, X. J. Wang, X. L. Wang, Y. Wang, Y. D. Wang, Y. F. Wang, Y. H. Wang, Y. N. Wang, Y. Q. Wang, Yaqian Wang, Yi Wang, Z. Wang, Z. L. Wang, Z. Y. Wang, Ziyi Wang, D. Wei, D. H. Wei, F. Weidner, S. P. Wen, C. W. Wenzel, U. Wiedner, G. Wilkinson, M. Wolke, L. Wollenberg, C. Wu, J. F. Wu, L. H. Wu, L. J. Wu, X. Wu, X. H. Wu, Y. Wu, Y. J. Wu, Z. Wu, L. Xia, X. M. Xian, T. Xiang, D. Xiao, G. Y. Xiao, S. Y. Xiao, Y. L. Xiao, Z. J. Xiao, C. Xie, X. H. Xie, Y. Xie, Y. G. Xie, Y. H. Xie, Z. P. Xie, T. Y. Xing, C. F. Xu, C. J. Xu, G. F. Xu, H. Y. Xu, Q. J. Xu, Q. N. Xu, W. Xu, W. L. Xu, X. P. Xu, Y. C. Xu, Z. P. Xu, Z. S. Xu, F. Yan, L. Yan, W. B. Yan, W. C. Yan, X. Q. Yan, H. J. Yang, H. L. Yang, H. X. Yang, Tao Yang, Y. Yang, Y. F. Yang, Y. X. Yang, Yifan Yang, Z. W. Yang, Z. P. Yao, M. Ye, M. H. Ye, J. H. Yin, Z. Y. You, B. X. Yu, C. X. Yu, G. Yu, J. S. Yu, T. Yu, X. D. Yu, C. Z. Yuan, L. Yuan, S. C. Yuan, X. Q. Yuan, Y. Yuan, Z. Y. Yuan, C. X. Yue, A. A. Zafar, F. R. Zeng, X. Zeng, Y. Zeng, Y. J. Zeng, X. Y. Zhai, Y. C. Zhai, Y. H. Zhan, A. Q. Zhang, B. L. Zhang, B. X. Zhang, D. H. Zhang, G. Y. Zhang, H. Zhang, H. H. Zhang, H. Q. Zhang, H. Y. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, J. X. Zhang, J. Y. Zhang, J. Z. Zhang, Jianyu Zhang, Jiawei Zhang, L. M. Zhang, L. Q. Zhang, Lei Zhang, P. Zhang, Q. Y. Zhang, Shuihan Zhang, Shulei Zhang, X. D. Zhang, X. M. Zhang, X. Y. Zhang, Xuyan Zhang, Y. Zhang, Y. T. Zhang, Y. H. Zhang, Yan Zhang, Yao Zhang, Z. H. Zhang, Z. L. Zhang, Z. Y. Zhang, G. Zhao, J. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, S. J. Zhao, Y. B. Zhao, Y. X. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, X. Zhong, H. Zhou, L. P. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Y. Z. Zhou, J. Zhu, K. Zhu, K. J. Zhu, L. Zhu, L. X. Zhu, S. H. Zhu, S. Q. Zhu, T. J. Zhu, W. J. Zhu, Y. C. Zhu, Z. A. Zhu, J. H. Zou, and J. Zu
Subjects: Branching fraction, Charm Physics, e +-e − Experiments, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract By analyzing e + e − annihilation data corresponding to an integrated luminosity of 2.93 fb −1 collected at a center-of-mass energy of 3.773 GeV with the BESIII detector, the first observation of the semileptonic decays D 0 → K S 0 π − π 0 e + ν e $$ {D}^0\to {K}_S^0{\pi}^{-}{\pi}^0{e}^{+}{\nu}_e $$ and D + → K S 0 π + π − e + ν e $$ {D}^{+}\to {K}_S^0{\pi}^{+}{\pi}^{-}{e}^{+}{\nu}_e $$ is reported. In the hypothesis that all events correspond to K 1(1270) decays, the branching fractions are measured to be B D 0 → K 1 1270 − → K S 0 π − π 0 e + ν e = 1.69 − 0.46 + 0.53 ± 0.15 × 10 − 4 $$ \mathcal{B}\left({D}^0\to {K}_1{(1270)}^{-}\left(\to {K}_S^0{\pi}^{-}{\pi}^0\right){e}^{+}{\nu}_e\right)=\left({1.69}_{-0.46}^{+0.53}\pm 0.15\right)\times {10}^{-4} $$ and B D + → K ¯ 1 1270 0 → K S 0 π + π − e + ν e = 1.47 − 0.40 + 0.45 ± 0.14 × 10 − 4 $$ \mathcal{B}\left({D}^{+}\to {\overline{K}}_1{(1270)}^0\left(\to {K}_S^0{\pi}^{+}{\pi}^{-}\right){e}^{+}{\nu}^e\right)=\left({1.47}_{-0.40}^{+0.45}\pm 0.14\right)\times {10}^{-4} $$ with statistical significance of 5.4σ and 5.6σ, respectively. When combined with measurements of the K 1(1270) → K + π − π decays, the absolute branching fractions are determined to be B D 0 → K 1 1270 − e + ν e = 1.08 − 0.13 − 0.10 + 0.14 + 0.08 ± 0.21 × 10 − 3 $$ \mathcal{B}\left({D}^0\to {K}_1{(1270)}^{-}{e}^{+}{\nu}_e\right)=\left({1.08}_{-0.13-0.10}^{+0.14+0.08}\pm 0.21\right)\times {10}^{-3} $$ and B D + → K ¯ 1 1270 0 e + ν e = 1.70 − 0.23 + 0.26 ± 0.13 ± 0.35 × 10 − 3 $$ \mathcal{B}\left({D}^{+}\to {\overline{K}}_1{(1270)}^0{e}^{+}{\nu}_e\right)=\left({1.70}_{-0.23}^{+0.26}\pm 0.13\pm 0.35\right)\times {10}^{-3} $$ . The first and second uncertainties are statistical and systematic, respectively, and the third uncertainties originate from the assumed branching fractions of the K 1(1270) → Kππ decays.
Published: 2024
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2. Measurement of e + e − → ωη′ cross sections at s $$ \sqrt{s} $$ = 2.000 to 3.080 GeV

Author: The BESIII collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, M. R. An, Q. An, Y. Bai, O. Bakina, I. Balossino, Y. Ban, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Cetin, J. F. Chang, T. T. Chang, W. L. Chang, G. R. Che, G. Chelkov, C. Chen, Chao Chen, G. Chen, H. S. Chen, M. L. Chen, S. J. Chen, S. M. Chen, T. Chen, X. R. Chen, X. T. Chen, Y. B. Chen, Y. Q. Chen, Z. J. Chen, W. S. Cheng, S. K. Choi, X. Chu, G. Cibinetto, S. C. Coen, F. Cossio, J. J. Cui, H. L. Dai, J. P. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, B. Ding, X. X. Ding, Y. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, S. X. Du, Z. H. Duan, P. Egorov, Y. H. Y. Fan, Y. L. Fan, J. Fang, S. S. Fang, W. X. Fang, Y. Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, K Fischer, M. Fritsch, C. Fritzsch, C. D. Fu, J. L. Fu, Y. W. Fu, H. Gao, Y. N. Gao, Yang Gao, S. Garbolino, I. Garzia, P. T. Ge, Z. W. Ge, C. Geng, E. M. Gersabeck, A Gilman, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. H. Gu, C. Y Guan, Z. L. Guan, A. Q. Guo, L. B. Guo, M. J. Guo, R. P. Guo, Y. P. Guo, A. Guskov, T. T. Han, W. Y. Han, X. Q. Hao, F. A. Harris, K. K. He, K. L. He, F. H. H. Heinsius, C. H. Heinz, Y. K. Heng, C. Herold, T. Holtmann, P. C. Hong, G. Y. Hou, X. T. Hou, Y. R. Hou, Z. L. Hou, H. M. Hu, J. F. Hu, T. Hu, Y. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, X. T. Huang, Y. P. Huang, T. Hussain, N Hüsken, W. Imoehl, J. Jackson, S. Jaeger, S. Janchiv, J. H. Jeong, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, Y. Y. Ji, X. Q. Jia, Z. K. Jia, H. J. Jiang, P. C. Jiang, S. S. Jiang, T. J. Jiang, X. S. Jiang, Y. Jiang, J. B. Jiao, Z. Jiao, S. Jin, Y. Jin, M. Q. Jing, T. Johansson, X. Kui, S. Kabana, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, R. Kappert, M. Kavatsyuk, B. C. Ke, A. Khoukaz, R. Kiuchi, R. Kliemt, O. B. Kolcu, B. Kopf, M. Kuessner, A. Kupsc, W. Kühn, J. J. Lane, P. Larin, A. Lavania, L. Lavezzi, T. T. Lei, Z. H. Lei, H. Leithoff, M. Lellmann, T. Lenz, C. Li, C. H. Li, Cheng Li, D. M. Li, F. Li, G. Li, H. Li, H. B. Li, H. J. Li, H. N. Li, Hui Li, J. R. Li, J. S. Li, J. W. Li, K. L. Li, Ke Li, L. J Li, L. K. Li, Lei Li, M. H. Li, P. R. Li, Q. X. Li, S. X. Li, T. Li, W. D. Li, W. G. Li, X. H. Li, X. L. Li, Xiaoyu Li, Y. G. Li, Z. J. Li, C. Liang, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, L. Z. Liao, Y. P. Liao, J. Libby, A. Limphirat, D. X. Lin, T. Lin, B. J. Liu, B. X. Liu, C. Liu, C. X. Liu, F. H. Liu, Fang Liu, Feng Liu, G. M. Liu, H. Liu, H. M. Liu, Huanhuan Liu, Huihui Liu, J. B. Liu, J. L. Liu, J. Y. Liu, K. Liu, K. Y. Liu, Ke Liu, L. Liu, L. C. Liu, Lu Liu, M. H. Liu, P. L. Liu, Q. Liu, S. B. Liu, T. Liu, W. K. Liu, W. M. Liu, X. Liu, Y. Liu, Y. B. Liu, Z. A. Liu, Z. Q. Liu, X. C. Lou, F. X. Lu, H. J. Lu, J. G. Lu, X. L. Lu, Y. Lu, Y. P. Lu, Z. H. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lyu, Y. F. Lyu, F. C. Ma, H. L. Ma, J. L. Ma, L. L. Ma, M. M. Ma, Q. M. Ma, R. Q. Ma, R. T. Ma, X. Y. Ma, Y. Ma, Y. M. Ma, F. E. Maas, M. Maggiora, S. Malde, Q. A. Malik, A. Mangoni, Y. J. Mao, Z. P. Mao, S. Marcello, Z. X. Meng, J. G. Messchendorp, G. Mezzadri, H. Miao, T. J. Min, R. E. Mitchell, X. H. Mo, N. Yu. Muchnoi, J. Muskalla, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, X. Pan, Y. Pan, A. Pathak, P. Patteri, Y. P. Pei, M. Pelizaeus, H. P. Peng, K. Peters, J. L. Ping, R. G. Ping, S. Plura, S. Pogodin, V. Prasad, F. Z. Qi, H. Qi, H. R. Qi, M. Qi, T. Y. Qi, S. Qian, W. B. Qian, C. F. Qiao, J. J. Qin, L. Q. Qin, X. P. Qin, X. S. Qin, Z. H. Qin, J. F. Qiu, S. Q. Qu, C. F. Redmer, K. J. Ren, A. Rivetti, V. Rodin, M. Rolo, G. Rong, Ch. Rosner, S. N. Ruan, N. Salone, A. Sarantsev, Y. Schelhaas, K. Schoenning, M. Scodeggio, K. Y. Shan, W. Shan, X. Y. Shan, J. F. Shangguan, L. G. Shao, M. Shao, C. P. Shen, H. F. Shen, W. H. Shen, X. Y. Shen, B. A. Shi, H. C. Shi, J. L. Shi, J. Y. Shi, Q. Q. Shi, R. S. Shi, X. Shi, J. J. Song, T. Z. Song, W. M. Song, Y. J. Song, Y. X. Song, S. Sosio, S. Spataro, F. Stieler, Y. J. Su, G. B. Sun, G. X. Sun, H. Sun, H. K. Sun, J. F. Sun, K. Sun, L. Sun, S. S. Sun, T. Sun, W. Y. Sun, Y. Sun, Y. J. Sun, Y. Z. Sun, Z. T. Sun, Y. X. Tan, C. J. Tang, G. Y. Tang, J. Tang, Y. A. Tang, L. Y Tao, Q. T. Tao, M. Tat, J. X. Teng, V. Thoren, W. H. Tian, Y. Tian, Z. F. Tian, I. Uman, S. J. Wang, B. Wang, B. L. Wang, Bo Wang, C. W. Wang, D. Y. Wang, F. Wang, H. J. Wang, H. P. Wang, J. P. Wang, K. Wang, L. L. Wang, M. Wang, Meng Wang, S. Wang, T. Wang, T. J. Wang, W. Wang, W. P. Wang, X. Wang, X. F. Wang, X. J. Wang, X. L. Wang, Y. Wang, Y. D. Wang, Y. F. Wang, Y. H. Wang, Y. N. Wang, Y. Q. Wang, Yaqian Wang, Yi Wang, Z. Wang, Z. L. Wang, Z. Y. Wang, Ziyi Wang, D. Wei, D. H. Wei, F. Weidner, S. P. Wen, C. W. Wenzel, U. Wiedner, G. Wilkinson, M. Wolke, L. Wollenberg, C. Wu, J. F. Wu, L. H. Wu, L. J. Wu, X. Wu, X. H. Wu, Y. Wu, Y. J. Wu, Z. Wu, L. Xia, X. M. Xian, T. Xiang, D. Xiao, G. Y. Xiao, S. Y. Xiao, Y. L. Xiao, Z. J. Xiao, C. Xie, X. H. Xie, Y. Xie, Y. G. Xie, Y. H. Xie, Z. P. Xie, T. Y. Xing, C. F. Xu, C. J. Xu, G. F. Xu, H. Y. Xu, Q. J. Xu, Q. N. Xu, W. Xu, W. L. Xu, X. P. Xu, Y. C. Xu, Z. P. Xu, Z. S. Xu, F. Yan, L. Yan, W. B. Yan, W. C. Yan, X. Q. Yan, H. J. Yang, H. L. Yang, H. X. Yang, Tao Yang, Y. Yang, Y. F. Yang, Y. X. Yang, Yifan Yang, Z. W. Yang, Z. P. Yao, M. Ye, M. H. Ye, J. H. Yin, Z. Y. You, B. X. Yu, C. X. Yu, G. Yu, J. S. Yu, T. Yu, X. D. Yu, C. Z. Yuan, L. Yuan, S. C. Yuan, X. Q. Yuan, Y. Yuan, Z. Y. Yuan, C. X. Yue, A. A. Zafar, F. R. Zeng, X. Zeng, Y. Zeng, Y. J. Zeng, X. Y. Zhai, Y. C. Zhai, Y. H. Zhan, A. Q. Zhang, B. L. Zhang, B. X. Zhang, D. H. Zhang, G. Y. Zhang, H. Zhang, H. H. Zhang, H. Q. Zhang, H. Y. Zhang, J. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, J. X. Zhang, J. Y. Zhang, J. Z. Zhang, Jianyu Zhang, Jiawei Zhang, L. M. Zhang, L. Q. Zhang, Lei Zhang, P. Zhang, Q. Y. Zhang, Shuihan Zhang, Shulei Zhang, X. D. Zhang, X. M. Zhang, X. Y. Zhang, Xuyan Zhang, Y. Zhang, Y. T. Zhang, Y. H. Zhang, Yan Zhang, Yao Zhang, Z. H. Zhang, Z. L. Zhang, Z. Y. Zhang, G. Zhao, J. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, S. J. Zhao, Y. B. Zhao, Y. X. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, X. Zhong, H. Zhou, L. P. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Y. Z. Zhou, J. Zhu, K. Zhu, K. J. Zhu, L. Zhu, L. X. Zhu, S. H. Zhu, S. Q. Zhu, T. J. Zhu, W. J. Zhu, Y. C. Zhu, Z. A. Zhu, J. H. Zou, and J. Zu
Subjects: e +-e − Experiments, Particle and Resonance Production, Spectroscopy, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract We measured the Born cross sections for the process e + e − → ωη′ at 22 center-of-mass energies from 2.000 to 3.080 GeV with the BESIII detector at the BEPCII collider. We observed a resonant structure with a statistical significance of 9.6σ. A Breit-Wigner fit determines its mass to be M R = (2153 ± 30 ± 31) MeV/c 2 and its width to be Γ R = (167 ± 77 ± 7) MeV, where the first uncertainties are statistical and the second are systematic.
Published: 2024
Full Text: View/download PDF

3. Measurement of the e + e − → K S 0 K L 0 $$ {K}_S^0{K}_L^0 $$ π 0 cross sections from s $$ \sqrt{s} $$ = 2.000 to 3.080 GeV

Author: The BESIII collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, M. R. An, Q. An, Y. Bai, O. Bakina, I. Balossino, Y. Ban, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Cetin, J. F. Chang, T. T. Chang, W. L. Chang, G. R. Che, G. Chelkov, C. Chen, Chao Chen, G. Chen, H. S. Chen, M. L. Chen, S. J. Chen, S. L. Chen, S. M. Chen, T. Chen, X. R. Chen, X. T. Chen, Y. B. Chen, Y. Q. Chen, Z. J. Chen, W. S. Cheng, S. K. Choi, X. Chu, G. Cibinetto, S. C. Coen, F. Cossio, J. J. Cui, H. L. Dai, J. P. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, B. Ding, X. X. Ding, Y. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, S. X. Du, Z. H. Duan, P. Egorov, Y. H. Fan, J. Fang, S. S. Fang, W. X. Fang, Y. Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, K Fischer, M. Fritsch, C. D. Fu, J. L. Fu, Y. W. Fu, H. Gao, Y. N. Gao, Yang Gao, S. Garbolino, I. Garzia, P. T. Ge, Z. W. Ge, C. Geng, E. M. Gersabeck, A Gilman, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. H. Gu, Y. T. Gu, C. Y Guan, Z. L. Guan, A. Q. Guo, L. B. Guo, M. J. Guo, R. P. Guo, Y. P. Guo, A. Guskov, T. T. Han, W. Y. Han, X. Q. Hao, F. A. Harris, K. K. He, K. L. He, F. H. H. Heinsius, C. H. Heinz, Y. K. Heng, C. Herold, T. Holtmann, P. C. Hong, G. Y. Hou, X. T. Hou, Y. R. Hou, Z. L. Hou, H. M. Hu, J. F. Hu, T. Hu, Y. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, X. T. Huang, Y. P. Huang, T. Hussain, N Hüsken, N. in der Wiesche, M. Irshad, J. Jackson, S. Jaeger, S. Janchiv, J. H. Jeong, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, Y. Y. Ji, X. Q. Jia, Z. K. Jia, H. J. Jiang, P. C. Jiang, S. S. Jiang, T. J. Jiang, X. S. Jiang, Y. Jiang, J. B. Jiao, Z. Jiao, S. Jin, Y. Jin, M. Q. Jing, T. Johansson, X. Kui, S. Kabana, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, M. Kavatsyuk, B. C. Ke, A. Khoukaz, R. Kiuchi, R. Kliemt, O. B. Kolcu, B. Kopf, M. Kuessner, A. Kupsc, W. Kühn, J. J. Lane, P. Larin, A. Lavania, L. Lavezzi, T. T. Lei, Z. H. Lei, H. Leithoff, M. Lellmann, T. Lenz, C. Li, C. H. Li, Cheng Li, D. M. Li, F. Li, G. Li, H. Li, H. B. Li, H. J. Li, H. N. Li, Hui Li, J. R. Li, J. S. Li, J. W. Li, K. L. Li, Ke Li, L. J Li, L. K. Li, Lei Li, M. H. Li, P. R. Li, Q. X. Li, S. X. Li, T. Li, W. D. Li, W. G. Li, X. H. Li, X. L. Li, Xiaoyu Li, Y. G. Li, Z. J. Li, Z. X. Li, C. Liang, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, L. Z. Liao, Y. P. Liao, J. Libby, A. Limphirat, D. X. Lin, T. Lin, B. J. Liu, B. X. Liu, C. Liu, C. X. Liu, F. H. Liu, Fang Liu, Feng Liu, G. M. Liu, H. Liu, H. B. Liu, H. M. Liu, Huanhuan Liu, Huihui Liu, J. B. Liu, J. L. Liu, J. Y. Liu, K. Liu, K. Y. Liu, Ke Liu, L. Liu, L. C. Liu, Lu Liu, M. H. Liu, P. L. Liu, Q. Liu, S. B. Liu, T. Liu, W. K. Liu, W. M. Liu, X. Liu, Y. Liu, Y. B. Liu, Z. A. Liu, Z. Q. Liu, X. C. Lou, F. X. Lu, H. J. Lu, J. G. Lu, X. L. Lu, Y. Lu, Y. P. Lu, Z. H. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lyu, Y. F. Lyu, F. C. Ma, H. L. Ma, J. L. Ma, L. L. Ma, M. M. Ma, Q. M. Ma, R. Q. Ma, R. T. Ma, X. Y. Ma, Y. Ma, Y. M. Ma, F. E. Maas, M. Maggiora, S. Malde, Q. A. Malik, A. Mangoni, Y. J. Mao, Z. P. Mao, S. Marcello, Z. X. Meng, J. G. Messchendorp, G. Mezzadri, H. Miao, T. J. Min, R. E. Mitchell, X. H. Mo, N. Yu. Muchnoi, J. Muskalla, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, Q. L. Niu, W. D. Niu, Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, X. Pan, Y. Pan, A. Pathak, P. Patteri, Y. P. Pei, M. Pelizaeus, H. P. Peng, Y. Y. Peng, K. Peters, J. L. Ping, R. G. Ping, S. Plura, V. Prasad, F. Z. Qi, H. Qi, H. R. Qi, M. Qi, T. Y. Qi, S. Qian, W. B. Qian, C. F. Qiao, J. J. Qin, L. Q. Qin, X. P. Qin, X. S. Qin, Z. H. Qin, J. F. Qiu, S. Q. Qu, C. F. Redmer, K. J. Ren, A. Rivetti, M. Rolo, G. Rong, Ch. Rosner, S. N. Ruan, N. Salone, A. Sarantsev, Y. Schelhaas, K. Schoenning, M. Scodeggio, K. Y. Shan, W. Shan, X. Y. Shan, J. F. Shangguan, L. G. Shao, M. Shao, C. P. Shen, H. F. Shen, W. H. Shen, X. Y. Shen, B. A. Shi, H. C. Shi, J. L. Shi, J. Y. Shi, Q. Q. Shi, R. S. Shi, X. Shi, J. J. Song, T. Z. Song, W. M. Song, Y. J. Song, Y. X. Song, S. Sosio, S. Spataro, F. Stieler, Y. J. Su, G. B. Sun, G. X. Sun, H. Sun, H. K. Sun, J. F. Sun, K. Sun, L. Sun, S. S. Sun, T. Sun, W. Y. Sun, Y. Sun, Y. J. Sun, Y. Z. Sun, Z. T. Sun, Y. X. Tan, C. J. Tang, G. Y. Tang, J. Tang, Y. A. Tang, L. Y Tao, Q. T. Tao, M. Tat, J. X. Teng, V. Thoren, W. H. Tian, Y. Tian, Z. F. Tian, I. Uman, S. J. Wang, B. Wang, B. L. Wang, Bo Wang, C. W. Wang, D. Y. Wang, F. Wang, H. J. Wang, H. P. Wang, J. P. Wang, K. Wang, L. L. Wang, M. Wang, Meng Wang, S. Wang, T. Wang, T. J. Wang, W. Wang, W. P. Wang, X. Wang, X. F. Wang, X. J. Wang, X. L. Wang, Y. Wang, Y. D. Wang, Y. F. Wang, Y. H. Wang, Y. N. Wang, Y. Q. Wang, Yaqian Wang, Yi Wang, Z. Wang, Z. L. Wang, Z. Y. Wang, Ziyi Wang, D. Wei, D. H. Wei, F. Weidner, S. P. Wen, C. W. Wenzel, U. Wiedner, G. Wilkinson, M. Wolke, L. Wollenberg, C. Wu, J. F. Wu, L. H. Wu, L. J. Wu, X. Wu, X. H. Wu, Y. Wu, Y. H. Wu, Y. J. Wu, Z. Wu, L. Xia, X. M. Xian, T. Xiang, D. Xiao, G. Y. Xiao, S. Y. Xiao, Y. L. Xiao, Z. J. Xiao, C. Xie, X. H. Xie, Y. Xie, Y. G. Xie, Y. H. Xie, Z. P. Xie, T. Y. Xing, C. F. Xu, C. J. Xu, G. F. Xu, H. Y. Xu, Q. J. Xu, Q. N. Xu, W. Xu, W. L. Xu, X. P. Xu, Y. C. Xu, Z. P. Xu, Z. S. Xu, F. Yan, L. Yan, W. B. Yan, W. C. Yan, X. Q. Yan, H. J. Yang, H. L. Yang, H. X. Yang, Tao Yang, Y. Yang, Y. F. Yang, Y. X. Yang, Yifan Yang, Z. W. Yang, Z. P. Yao, M. Ye, M. H. Ye, J. H. Yin, Z. Y. You, B. X. Yu, C. X. Yu, G. Yu, J. S. Yu, T. Yu, X. D. Yu, C. Z. Yuan, L. Yuan, S. C. Yuan, X. Q. Yuan, Y. Yuan, Z. Y. Yuan, C. X. Yue, A. A. Zafar, F. R. Zeng, X. Zeng, Y. Zeng, Y. J. Zeng, X. Y. Zhai, Y. C. Zhai, Y. H. Zhan, A. Q. Zhang, B. L. Zhang, B. X. Zhang, D. H. Zhang, G. Y. Zhang, H. Zhang, H. C. Zhang, H. H. Zhang, H. Q. Zhang, H. Y. Zhang, J. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, J. X. Zhang, J. Y. Zhang, J. Z. Zhang, Jianyu Zhang, Jiawei Zhang, L. M. Zhang, L. Q. Zhang, Lei Zhang, P. Zhang, Q. Y. Zhang, Shuihan Zhang, Shulei Zhang, X. D. Zhang, X. M. Zhang, X. Y. Zhang, Xuyan Zhang, Y. Zhang, Y. T. Zhang, Y. H. Zhang, Yan Zhang, Yao Zhang, Z. H. Zhang, Z. L. Zhang, Z. Y. Zhang, G. Zhao, J. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, S. J. Zhao, Y. B. Zhao, Y. X. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, X. Zhong, H. Zhou, L. P. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Y. Z. Zhou, J. Zhu, K. Zhu, K. J. Zhu, L. Zhu, L. X. Zhu, S. H. Zhu, S. Q. Zhu, T. J. Zhu, W. J. Zhu, Y. C. Zhu, Z. A. Zhu, J. H. Zou, and J. Zu
Subjects: e +-e − Experiments, Particle and Resonance Production, Spectroscopy, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Based on e + e − collision data collected at center-of-mass energies from 2.000 to 3.080 GeV by the BESIII detector at the BEPCII collider, a partial wave analysis is performed for the process e + e − → K S 0 K L 0 $$ {K}_S^0{K}_L^0 $$ π 0. The results allow the Born cross sections of the process e + e − → K S 0 K L 0 $$ {K}_S^0{K}_L^0 $$ π 0, as well as its subprocesses e + e − → K ∗(892)0 K ¯ $$ \overline{K} $$ 0 and K 2 ∗ $$ {K}_2^{\ast } $$ (1430)0 K ¯ $$ \overline{K} $$ 0 to be measured. The Born cross sections for e + e − → K S 0 K L 0 $$ {K}_S^0{K}_L^0 $$ π 0 are consistent with previous measurements by BaBar, but with substantially improved precision. The Born cross section lineshape of the process e + e − K ∗(892)0 K ¯ $$ \overline{K} $$ 0 is consistent with a vector meson state around 2.2 GeV with a significance of 3.2σ. A Breit-Wigner fit determines its mass as M Y = (2164.7 ± 9.1 ± 3.1) MeV/c 2 and its width as Γ Y = (32.4 ± 21.0 ± 1.8) MeV.
Published: 2024
Full Text: View/download PDF

4. Search for the semi-muonic charmonium decay J/ψ → D − μ + ν μ + c.c.

Author: The BESIII collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, M. R. An, Q. An, Y. Bai, O. Bakina, I. Balossino, Y. Ban, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Cetin, J. F. Chang, T. T. Chang, W. L. Chang, G. R. Che, G. Chelkov, C. Chen, G. Chen, H. S. Chen, M. L. Chen, S. J. Chen, S. M. Chen, T. Chen, X. R. Chen, X. T. Chen, Y. B. Chen, Y. Q. Chen, Z. J. Chen, W. S. Cheng, S. K. Choi, X. Chu, G. Cibinetto, S. C. Coen, F. Cossio, J. J. Cui, H. L. Dai, J. P. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, B. Ding, X. X. Ding, Y. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, S. X. Du, Z. H. Duan, P. Egorov, Y. L. Fan, J. Fang, S. S. Fang, W. X. Fang, Y. Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, K Fischer, M. Fritsch, C. Fritzsch, C. D. Fu, J. L. Fu, Y. W. Fu, H. Gao, Y. N. Gao, Y. Gao, S. Garbolino, I. Garzia, P. T. Ge, Z. W. Ge, C. Geng, E. M. Gersabeck, A Gilman, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. H. Gu, Y. T. Gu, C. Y Guan, Z. L. Guan, A. Q. Guo, L. B. Guo, M. J. Guo, R. P. Guo, Y. P. Guo, A. Guskov, T. T. Han, W. Y. Han, X. Q. Hao, F. A. Harris, K. K. He, K. L. He, F. H. H. Heinsius, C. H. Heinz, Y. K. Heng, C. Herold, T. Holtmann, P. C. Hong, G. Y. Hou, X. T. Hou, Y. R. Hou, Z. L. Hou, H. M. Hu, J. F. Hu, T. Hu, Y. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, X. T. Huang, Y. P. Huang, T. Hussain, N. Hüsken, W. Imoehl, M. Irshad, J. Jackson, S. Jaeger, S. Janchiv, J. H. Jeong, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, Y. Y. Ji, X. Q. Jia, Z. K. Jia, H. J. Jiang, P. C. Jiang, S. S. Jiang, T. J. Jiang, X. S. Jiang, Y. Jiang, J. B. Jiao, Z. Jiao, S. Jin, Y. Jin, M. Q. Jing, T. Johansson, X. Kui, S. Kabana, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, R. Kappert, M. Kavatsyuk, B. C. Ke, A. Khoukaz, R. Kiuchi, R. Kliemt, O. B. Kolcu, B. Kopf, M. K. Kuessner, A. Kupsc, W. Kühn, J. J. Lane, P. Larin, A. Lavania, L. Lavezzi, T. T. Lei, Z. H. Lei, H. Leithoff, M. Lellmann, T. Lenz, C. Li, C. H. Li, D. M. Li, F. Li, G. Li, H. Li, H. B. Li, H. J. Li, H. N. Li, J. R. Li, J. S. Li, J. W. Li, K. L. Li, K. Li, L. J Li, L. K. Li, Lei Li, M. H. Li, P. R. Li, Q. X. Li, S. X. Li, T. Li, W. D. Li, W. G. Li, X. H. Li, X. L. Li, X. Li, Y. G. Li, Z. J. Li, Z. X. Li, Z. Y. Li, C. Liang, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, L. Z. Liao, Y. P. Liao, J. Libby, A. Limphirat, C. X. Lin, D. X. Lin, T. Lin, B. J. Liu, B. X. Liu, C. Liu, C. X. Liu, F. H. Liu, F. Liu, G. M. Liu, H. Liu, H. B. Liu, H. M. Liu, J. B. Liu, J. L. Liu, J. Y. Liu, K. Liu, K. Y. Liu, L. Liu, L. C. Liu, M. H. Liu, P. L. Liu, Q. Liu, S. B. Liu, T. Liu, W. K. Liu, W. M. Liu, X. Liu, Y. Liu, Y. B. Liu, Z. A. Liu, Z. Q. Liu, X. C. Lou, F. X. Lu, H. J. Lu, J. G. Lu, X. L. Lu, Y. Lu, Y. P. Lu, Z. H. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lyu, Y. F. Lyu, F. C. Ma, H. L. Ma, J. L. Ma, L. L. Ma, M. M. Ma, Q. M. Ma, R. Q. Ma, R. T. Ma, X. Y. Ma, Y. Ma, Y. M. Ma, F. E. Maas, M. Maggiora, S. Malde, Q. A. Malik, A. Mangoni, Y. J. Mao, Z. P. Mao, S. Marcello, Z. X. Meng, J. G. Messchendorp, G. Mezzadri, H. Miao, T. J. Min, R. E. Mitchell, X. H. Mo, N. Yu. Muchnoi, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, X. Pan, Y. Pan, A. Pathak, P. Patteri, Y. P. Pei, M. Pelizaeus, H. P. Peng, K. Peters, J. L. Ping, R. G. Ping, S. Plura, S. Pogodin, V. Prasad, F. Z. Qi, H. Qi, H. R. Qi, M. Qi, T. Y. Qi, S. Qian, W. B. Qian, C. F. Qiao, J. J. Qin, L. Q. Qin, X. P. Qin, X. S. Qin, Z. H. Qin, J. F. Qiu, S. Q. Qu, C. F. Redmer, K. J. Ren, A. Rivetti, V. Rodin, M. Rolo, G. Rong, Ch. Rosner, S. N. Ruan, N. Salone, A. Sarantsev, Y. Schelhaas, K. Schoenning, M. Scodeggio, K. Y. Shan, W. Shan, X. Y. Shan, J. F. Shangguan, L. G. Shao, M. Shao, C. P. Shen, H. F. Shen, W. H. Shen, X. Y. Shen, B. A. Shi, H. C. Shi, J. L. Shi, J. Y. Shi, Q. Q. Shi, R. S. Shi, X. Shi, J. J. Song, T. Z. Song, W. M. Song, Y. J. Song, Y. X. Song, S. Sosio, S. Spataro, F. Stieler, Y. J. Su, G. B. Sun, G. X. Sun, H. Sun, H. K. Sun, J. F. Sun, K. Sun, L. Sun, S. S. Sun, T. Sun, W. Y. Sun, Y. Sun, Y. J. Sun, Y. Z. Sun, Z. T. Sun, Y. X. Tan, C. J. Tang, G. Y. Tang, J. Tang, Y. A. Tang, L. Y Tao, Q. T. Tao, M. Tat, J. X. Teng, V. Thoren, W. H. Tian, Y. Tian, Z. F. Tian, I. Uman, S. J. Wang, B. Wang, B. L. Wang, C. W. Wang, D. Y. Wang, F. Wang, H. J. Wang, H. P. Wang, J. P. Wang, K. Wang, L. L. Wang, M. Wang, Meng Wang, S. Wang, T. Wang, T. J. Wang, W. Wang, W. P. Wang, X. Wang, X. F. Wang, X. J. Wang, X. L. Wang, Y. Wang, Y. D. Wang, Y. F. Wang, Y. H. Wang, Y. N. Wang, Y. Q. Wang, Z. Wang, Z. L. Wang, Z. Y. Wang, D. Wei, D. H. Wei, F. Weidner, S. P. Wen, C. W. Wenzel, U. W. Wiedner, G. Wilkinson, M. Wolke, L. Wollenberg, C. Wu, J. F. Wu, L. H. Wu, L. J. Wu, X. Wu, X. H. Wu, Y. Wu, Y. J. Wu, Z. Wu, L. Xia, X. M. Xian, T. Xiang, D. Xiao, G. Y. Xiao, H. Xiao, S. Y. Xiao, Y. L. Xiao, Z. J. Xiao, C. Xie, X. H. Xie, Y. Xie, Y. G. Xie, Y. H. Xie, Z. P. Xie, T. Y. Xing, C. F. Xu, C. J. Xu, G. F. Xu, H. Y. Xu, Q. J. Xu, Q. N. Xu, W. Xu, W. L. Xu, X. P. Xu, Y. C. Xu, Z. P. Xu, Z. S. Xu, F. Yan, L. Yan, W. B. Yan, W. C. Yan, X. Q. Yan, H. J. Yang, H. L. Yang, H. X. Yang, T. Yang, Y. Yang, Y. F. Yang, Y. X. Yang, Z. W. Yang, Z. P. Yao, M. Ye, M. H. Ye, J. H. Yin, Z. Y. You, B. X. Yu, C. X. Yu, G. Yu, J. S. Yu, T. Yu, X. D. Yu, C. Z. Yuan, L. Yuan, S. C. Yuan, X. Q. Yuan, Y. Yuan, Z. Y. Yuan, C. X. Yue, A. A. Zafar, F. R. Zeng, X. Zeng, Y. Zeng, Y. J. Zeng, X. Y. Zhai, Y. C. Zhai, Y. H. Zhan, A. Q. Zhang, B. L. Zhang, B. X. Zhang, D. H. Zhang, G. Y. Zhang, H. Zhang, H. H. Zhang, H. Q. Zhang, H. Y. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, J. X. Zhang, J. Y. Zhang, J. Z. Zhang, J. Zhang, L. M. Zhang, L. Q. Zhang, L. Zhang, P. Zhang, Q. Y. Zhang, S. Zhang, X. D. Zhang, X. M. Zhang, X. Y. Zhang, X. Zhang, Y. Zhang, Y. T. Zhang, Y. H. Zhang, Z. H. Zhang, Z. L. Zhang, Z. Y. Zhang, G. Zhao, J. Zhao, J. Y. Zhao, J. Z. Zhao, L. Zhao, M. G. Zhao, S. J. Zhao, Y. B. Zhao, Y. X. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, X. Zhong, H. Zhou, L. P. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Y. Z. Zhou, J. Zhu, K. Zhu, K. J. Zhu, L. Zhu, L. X. Zhu, S. H. Zhu, S. Q. Zhu, T. J. Zhu, W. J. Zhu, Y. C. Zhu, Z. A. Zhu, J. H. Zou, and J. Zu
Subjects: Branching fraction, e +-e − Experiments, Quarkonium, Rare Decay, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Using (10087 ± 44) × 106 J/ψ events collected with the BESIII detector at the BEPCII e + e − storage ring at the center-of-mass energy of s $$ \sqrt{s} $$ = 3.097 GeV, we present a search for the rare semi-muonic charmonium decay J/ψ → D − μ + ν μ + c.c.. Since no significant signal is observed, we set an upper limit of the branching fraction to be B $$ \mathcal{B} $$ (J/ψ → D − μ + ν μ + c.c.) < 5.6 × 10 −7 at 90% confidence level. This is the first search for the weak decay of charmonium with a muon in the final state.
Published: 2024
Full Text: View/download PDF

5. Measurement of the cross section of e + e − → Ξ − Ξ ¯ + $$ {e}^{+}{e}^{-}\to {\Xi}^{-}{\overline{\Xi}}^{+} $$ at center-of-mass energies between 3.510 and 4.843 GeV

Author: The BESIII collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, M. R. An, Q. An, Y. Bai, O. Bakina, I. Balossino, Y. Ban, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Cetin, J. F. Chang, T. T. Chang, W. L. Chang, G. R. Che, G. Chelkov, C. Chen, Chao Chen, G. Chen, H. S. Chen, M. L. Chen, S. J. Chen, S. M. Chen, T. Chen, X. R. Chen, X. T. Chen, Y. B. Chen, Y. Q. Chen, Z. J. Chen, W. S. Cheng, S. K. Choi, X. Chu, G. Cibinetto, S. C. Coen, F. Cossio, J. J. Cui, H. L. Dai, J. P. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, B. Ding, X. X. Ding, Y. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, S. X. Du, Z. H. Duan, P. Egorov, Y. H. Y. Fan, Y. L. Fan, J. Fang, S. S. Fang, W. X. Fang, Y. Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, K Fischer, M. Fritsch, C. Fritzsch, C. D. Fu, J. L. Fu, Y. W. Fu, H. Gao, Y. N. Gao, Yang Gao, S. Garbolino, I. Garzia, P. T. Ge, Z. W. Ge, C. Geng, E. M. Gersabeck, A Gilman, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. H. Gu, C. Y Guan, Z. L. Guan, A. Q. Guo, L. B. Guo, M. J. Guo, R. P. Guo, Y. P. Guo, A. Guskov, T. T. Han, W. Y. Han, X. Q. Hao, F. A. Harris, K. K. He, K. L. He, F. H. H. Heinsius, C. H. Heinz, Y. K. Heng, C. Herold, T. Holtmann, P. C. Hong, G. Y. Hou, X. T. Hou, Y. R. Hou, Z. L. Hou, H. M. Hu, J. F. Hu, T. Hu, Y. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, X. T. Huang, Y. P. Huang, T. Hussain, N Hüsken, W. Imoehl, J. Jackson, S. Jaeger, S. Janchiv, J. H. Jeong, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, Y. Y. Ji, X. Q. Jia, Z. K. Jia, H. J. Jiang, P. C. Jiang, S. S. Jiang, T. J. Jiang, X. S. Jiang, Y. Jiang, J. B. Jiao, Z. Jiao, S. Jin, Y. Jin, M. Q. Jing, T. Johansson, X. Kui, S. Kabana, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, R. Kappert, M. Kavatsyuk, B. C. Ke, A. Khoukaz, R. Kiuchi, R. Kliemt, O. B. Kolcu, B. Kopf, M. Kuessner, A. Kupsc, W. Kühn, J. J. Lane, P. Larin, A. Lavania, L. Lavezzi, T. T. Lei, Z. H. Lei, H. Leithoff, M. Lellmann, T. Lenz, C. Li, C. H. Li, Cheng Li, D. M. Li, F. Li, G. Li, H. Li, H. B. Li, H. J. Li, H. N. Li, Hui Li, J. R. Li, J. S. Li, J. W. Li, K. L. Li, Ke Li, L. J Li, L. K. Li, Lei Li, M. H. Li, P. R. Li, Q. X. Li, S. X. Li, T. Li, W. D. Li, W. G. Li, X. H. Li, X. L. Li, Xiaoyu Li, Y. G. Li, Z. J. Li, C. Liang, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, L. Z. Liao, Y. P. Liao, J. Libby, A. Limphirat, D. X. Lin, T. Lin, B. J. Liu, B. X. Liu, C. Liu, C. X. Liu, F. H. Liu, Fang Liu, Feng Liu, G. M. Liu, H. Liu, H. M. Liu, Huanhuan Liu, Huihui Liu, J. B. Liu, J. L. Liu, J. Y. Liu, K. Liu, K. Y. Liu, Ke Liu, L. Liu, L. C. Liu, Lu Liu, M. H. Liu, P. L. Liu, Q. Liu, S. B. Liu, T. Liu, W. K. Liu, W. M. Liu, X. Liu, Y. Liu, Y. B. Liu, Z. A. Liu, Z. Q. Liu, X. C. Lou, F. X. Lu, H. J. Lu, J. G. Lu, X. L. Lu, Y. Lu, Y. P. Lu, Z. H. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lyu, Y. F. Lyu, F. C. Ma, H. L. Ma, J. L. Ma, L. L. Ma, M. M. Ma, Q. M. Ma, R. Q. Ma, R. T. Ma, X. Y. Ma, Y. Ma, Y. M. Ma, F. E. Maas, M. Maggiora, S. Malde, Q. A. Malik, A. Mangoni, Y. J. Mao, Z. P. Mao, S. Marcello, Z. X. Meng, J. G. Messchendorp, G. Mezzadri, H. Miao, T. J. Min, R. E. Mitchell, X. H. Mo, N. Yu. Muchnoi, J. Muskalla, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, X. Pan, Y. Pan, A. Pathak, P. Patteri, Y. P. Pei, M. Pelizaeus, H. P. Peng, K. Peters, J. L. Ping, R. G. Ping, S. Plura, S. Pogodin, V. Prasad, F. Z. Qi, H. Qi, H. R. Qi, M. Qi, T. Y. Qi, S. Qian, W. B. Qian, C. F. Qiao, J. J. Qin, L. Q. Qin, X. P. Qin, X. S. Qin, Z. H. Qin, J. F. Qiu, S. Q. Qu, C. F. Redmer, K. J. Ren, A. Rivetti, V. Rodin, M. Rolo, G. Rong, Ch. Rosner, S. N. Ruan, N. Salone, A. Sarantsev, Y. Schelhaas, K. Schoenning, M. Scodeggio, K. Y. Shan, W. Shan, X. Y. Shan, J. F. Shangguan, L. G. Shao, M. Shao, C. P. Shen, H. F. Shen, W. H. Shen, X. Y. Shen, B. A. Shi, H. C. Shi, J. L. Shi, J. Y. Shi, Q. Q. Shi, R. S. Shi, X. Shi, J. J. Song, T. Z. Song, W. M. Song, Y. J. Song, Y. X. Song, S. Sosio, S. Spataro, F. Stieler, Y. J. Su, G. B. Sun, G. X. Sun, H. Sun, H. K. Sun, J. F. Sun, K. Sun, L. Sun, S. S. Sun, T. Sun, W. Y. Sun, Y. Sun, Y. J. Sun, Y. Z. Sun, Z. T. Sun, Y. X. Tan, C. J. Tang, G. Y. Tang, J. Tang, Y. A. Tang, L. Y Tao, Q. T. Tao, M. Tat, J. X. Teng, V. Thoren, W. H. Tian, Y. Tian, Z. F. Tian, I. Uman, S. J. Wang, B. Wang, B. L. Wang, Bo Wang, C. W. Wang, D. Y. Wang, F. Wang, H. J. Wang, H. P. Wang, J. P. Wang, K. Wang, L. L. Wang, M. Wang, Meng Wang, S. Wang, T. Wang, T. J. Wang, W. Wang, W. P. Wang, X. Wang, X. F. Wang, X. J. Wang, X. L. Wang, Y. Wang, Y. D. Wang, Y. F. Wang, Y. H. Wang, Y. N. Wang, Y. Q. Wang, Yaqian Wang, Yi Wang, Z. Wang, Z. L. Wang, Z. Y. Wang, Ziyi Wang, D. Wei, D. H. Wei, F. Weidner, S. P. Wen, C. W. Wenzel, U. Wiedner, G. Wilkinson, M. Wolke, L. Wollenberg, C. Wu, J. F. Wu, L. H. Wu, L. J. Wu, X. Wu, X. H. Wu, Y. Wu, Y. J. Wu, Z. Wu, L. Xia, X. M. Xian, T. Xiang, D. Xiao, G. Y. Xiao, S. Y. Xiao, Y. L. Xiao, Z. J. Xiao, C. Xie, X. H. Xie, Y. Xie, Y. G. Xie, Y. H. Xie, Z. P. Xie, T. Y. Xing, C. F. Xu, C. J. Xu, G. F. Xu, H. Y. Xu, Q. J. Xu, Q. N. Xu, W. Xu, W. L. Xu, X. P. Xu, Y. C. Xu, Z. P. Xu, Z. S. Xu, F. Yan, L. Yan, W. B. Yan, W. C. Yan, X. Q. Yan, H. J. Yang, H. L. Yang, H. X. Yang, Tao Yang, Y. Yang, Y. F. Yang, Y. X. Yang, Yifan Yang, Z. W. Yang, Z. P. Yao, M. Ye, M. H. Ye, J. H. Yin, Z. Y. You, B. X. Yu, C. X. Yu, G. Yu, J. S. Yu, T. Yu, X. D. Yu, C. Z. Yuan, L. Yuan, S. C. Yuan, X. Q. Yuan, Y. Yuan, Z. Y. Yuan, C. X. Yue, A. A. Zafar, F. R. Zeng, X. Zeng, Y. Zeng, Y. J. Zeng, X. Y. Zhai, Y. C. Zhai, Y. H. Zhan, A. Q. Zhang, B. L. Zhang, B. X. Zhang, D. H. Zhang, G. Y. Zhang, H. Zhang, H. H. Zhang, H. Q. Zhang, H. Y. Zhang, J. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, J. X. Zhang, J. Y. Zhang, J. Z. Zhang, Jianyu Zhang, Jiawei Zhang, L. M. Zhang, L. Q. Zhang, Lei Zhang, P. Zhang, Q. Y. Zhang, Shuihan Zhang, Shulei Zhang, X. D. Zhang, X. M. Zhang, X. Y. Zhang, Xuyan Zhang, Y. Zhang, Y. T. Zhang, Y. H. Zhang, Yan Zhang, Yao Zhang, Z. H. Zhang, Z. L. Zhang, Z. Y. Zhang, G. Zhao, J. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, S. J. Zhao, Y. B. Zhao, Y. X. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, X. Zhong, H. Zhou, L. P. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Y. Z. Zhou, J. Zhu, K. Zhu, K. J. Zhu, L. Zhu, L. X. Zhu, S. H. Zhu, S. Q. Zhu, T. J. Zhu, W. J. Zhu, Y. C. Zhu, Z. A. Zhu, J. H. Zou, and J. Zu
Subjects: e +-e − Experiments, Branching fraction, QCD, Electroweak Interaction, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Using e + e − collision data corresponding to a total integrated luminosity of 12.9 fb −1 collected with the BESIII detector at the BEPCII collider, the exclusive Born cross sections and the effective form factors of the reaction e + e − → Ξ − Ξ ¯ + $$ {e}^{+}{e}^{-}\to {\Xi}^{-}{\overline{\Xi}}^{+} $$ are measured via the single baryon-tag method at 23 center-of-mass energies between 3.510 and 4.843 GeV. Evidence for the decay ψ 3770 → Ξ − Ξ ¯ + $$ \psi (3770)\to {\Xi}^{-}{\overline{\Xi}}^{+} $$ is observed with a significance of 4.5σ by analyzing the measured cross sections together with earlier BESIII results. For the other charmonium(-like) states ψ(4040), ψ(4160), Y(4230), Y(4360), ψ(4415), and Y(4660), no significant signal of their decay to Ξ − Ξ ¯ + $$ {\Xi}^{-}{\overline{\Xi}}^{+} $$ is found. For these states, upper limits of the products of the branching fraction and the electronic partial width at the 90% confidence level are provided.
Published: 2023
Full Text: View/download PDF

6. Amplitude analysis and branching fraction measurement of the decay D+ → K S 0 $$ {\textrm{K}}_{\textrm{S}}^0 $$ π + π 0 π 0

Author: The BESIII collaboration, M. Ablikim, M. N. Achasov, P. Adlarson, X. C. Ai, R. Aliberti, A. Amoroso, M. R. An, Q. An, Y. Bai, O. Bakina, I. Balossino, Y. Ban, V. Batozskaya, K. Begzsuren, N. Berger, M. Berlowski, M. Bertani, D. Bettoni, F. Bianchi, E. Bianco, A. Bortone, I. Boyko, R. A. Briere, A. Brueggemann, H. Cai, X. Cai, A. Calcaterra, G. F. Cao, N. Cao, S. A. Cetin, J. F. Chang, T. T. Chang, W. L. Chang, G. R. Che, G. Chelkov, C. Chen, Chao Chen, G. Chen, H. S. Chen, M. L. Chen, S. J. Chen, S. M. Chen, T. Chen, X. R. Chen, X. T. Chen, Y. B. Chen, Y. Q. Chen, Z. J. Chen, W. S. Cheng, S. K. Choi, X. Chu, G. Cibinetto, S. C. Coen, F. Cossio, J. J. Cui, H. L. Dai, J. P. Dai, A. Dbeyssi, R. E. de Boer, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, B. Ding, X. X. Ding, Y. Ding, J. Dong, L. Y. Dong, M. Y. Dong, X. Dong, M. C. Du, S. X. Du, Z. H. Duan, P. Egorov, Y. L. Fan, J. Fang, S. S. Fang, W. X. Fang, Y. Fang, R. Farinelli, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, J. H. Feng, K. Fischer, M. Fritsch, C. Fritzsch, C. D. Fu, J. L. Fu, Y. W. Fu, H. Gao, Y. N. Gao, Yang Gao, S. Garbolino, I. Garzia, P. T. Ge, Z. W. Ge, C. Geng, E. M. Gersabeck, A. Gilman, K. Goetzen, L. Gong, W. X. Gong, W. Gradl, S. Gramigna, M. Greco, M. H. Gu, Y. T. Gu, C. Y. Guan, Z. L. Guan, A. Q. Guo, L. B. Guo, M. J. Guo, R. P. Guo, Y. P. Guo, A. Guskov, T. T. Han, W. Y. Han, X. Q. Hao, F. A. Harris, K. K. He, K. L. He, F. H. H. Heinsius, C. H. Heinz, Y. K. Heng, C. Herold, T. Holtmann, P. C. Hong, G. Y. Hou, X. T. Hou, Y. R. Hou, Z. L. Hou, H. M. Hu, J. F. Hu, T. Hu, Y. Hu, G. S. Huang, K. X. Huang, L. Q. Huang, X. T. Huang, Y. P. Huang, T. Hussain, N. Hüsken, W. Imoehl, M. Irshad, J. Jackson, S. Jaeger, S. Janchiv, J. H. Jeong, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, Y. Y. Ji, X. Q. Jia, Z. K. Jia, H. J. Jiang, P. C. Jiang, S. S. Jiang, T. J. Jiang, X. S. Jiang, Y. Jiang, J. B. Jiao, Z. Jiao, S. Jin, Y. Jin, M. Q. Jing, T. Johansson, X. Kui, S. Kabana, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, R. Kappert, M. Kavatsyuk, B. C. Ke, A. Khoukaz, R. Kiuchi, R. Kliemt, O. B. Kolcu, B. Kopf, M. K. Kuessner, A. Kupsc, W. Kühn, J. J. Lane, P. Larin, A. Lavania, L. Lavezzi, T. T. Lei, Z. H. Lei, H. Leithoff, M. Lellmann, T. Lenz, C. Li, C. H. Li, Cheng Li, D. M. Li, F. Li, G. Li, H. Li, H. B. Li, H. J. Li, H. N. Li, Hui Li, J. R. Li, J. S. Li, J. W. Li, K. L. Li, Ke Li, L. J. Li, L. K. Li, Lei Li, M. H. Li, P. R. Li, Q. X. Li, S. X. Li, T. Li, W. D. Li, W. G. Li, X. H. Li, X. L. Li, Xiaoyu Li, Y. G. Li, Z. J. Li, Z. X. Li, C. Liang, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, L. Z. Liao, Y. P. Liao, J. Libby, A. Limphirat, D. X. Lin, T. Lin, B. J. Liu, B. X. Liu, C. Liu, C. X. Liu, F. H. Liu, Fang Liu, Feng Liu, G. M. Liu, H. Liu, H. B. Liu, H. M. Liu, Huanhuan Liu, Huihui Liu, J. B. Liu, J. L. Liu, J. Y. Liu, K. Liu, K. Y. Liu, Ke Liu, L. Liu, L. C. Liu, Lu Liu, M. H. Liu, P. L. Liu, Q. Liu, S. B. Liu, T. Liu, W. K. Liu, W. M. Liu, X. Liu, Y. Liu, Y. B. Liu, Z. A. Liu, Z. Q. Liu, X. C. Lou, F. X. Lu, H. J. Lu, J. G. Lu, X. L. Lu, Y. Lu, Y. P. Lu, Z. H. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lyu, Y. F. Lyu, F. C. Ma, H. L. Ma, J. L. Ma, L. L. Ma, M. M. Ma, Q. M. Ma, R. Q. Ma, R. T. Ma, X. Y. Ma, Y. Ma, Y. M. Ma, F. E. Maas, M. Maggiora, S. Malde, Q. A. Malik, A. Mangoni, Y. J. Mao, Z. P. Mao, S. Marcello, Z. X. Meng, J. G. Messchendorp, G. Mezzadri, H. Miao, T. J. Min, R. E. Mitchell, X. H. Mo, N. Yu. Muchnoi, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, X. Pan, Y. Pan, A. Pathak, P. Patteri, Y. P. Pei, M. Pelizaeus, H. P. Peng, K. Peters, J. L. Ping, R. G. Ping, S. Plura, S. Pogodin, V. Prasad, F. Z. Qi, H. Qi, H. R. Qi, M. Qi, T. Y. Qi, S. Qian, W. B. Qian, C. F. Qiao, J. J. Qin, L. Q. Qin, X. P. Qin, X. S. Qin, Z. H. Qin, J. F. Qiu, S. Q. Qu, C. F. Redmer, K. J. Ren, A. Rivetti, V. Rodin, M. Rolo, G. Rong, Ch. Rosner, S. N. Ruan, N. Salone, A. Sarantsev, Y. Schelhaas, K. Schoenning, M. Scodeggio, K. Y. Shan, W. Shan, X. Y. Shan, J. F. Shangguan, L. G. Shao, M. Shao, C. P. Shen, H. F. Shen, W. H. Shen, X. Y. Shen, B. A. Shi, H. C. Shi, J. L. Shi, J. Y. Shi, Q. Q. Shi, R. S. Shi, X. Shi, J. J. Song, T. Z. Song, W. M. Song, Y. J. Song, Y. X. Song, S. Sosio, S. Spataro, F. Stieler, Y. J. Su, G. B. Sun, G. X. Sun, H. Sun, H. K. Sun, J. F. Sun, K. Sun, L. Sun, S. S. Sun, T. Sun, W. Y. Sun, Y. Sun, Y. J. Sun, Y. Z. Sun, Z. T. Sun, Y. X. Tan, C. J. Tang, G. Y. Tang, J. Tang, Y. A. Tang, L. Y. Tao, Q. T. Tao, M. Tat, J. X. Teng, V. Thoren, W. H. Tian, Y. Tian, Z. F. Tian, I. Uman, S. J. Wang, B. Wang, B. L. Wang, Bo Wang, C. W. Wang, D. Y. Wang, F. Wang, H. J. Wang, H. P. Wang, J. P. Wang, K. Wang, L. L. Wang, M. Wang, Meng Wang, S. Wang, T. Wang, T. J. Wang, W. Wang, W. P. Wang, X. Wang, X. F. Wang, X. J. Wang, X. L. Wang, Y. Wang, Y. D. Wang, Y. F. Wang, Y. H. Wang, Y. N. Wang, Y. Q. Wang, Yaqian Wang, Yi Wang, Z. Wang, Z. L. Wang, Z. Y. Wang, Ziyi Wang, D. Wei, D. H. Wei, F. Weidner, S. P. Wen, C. W. Wenzel, U. W. Wiedner, G. Wilkinson, M. Wolke, L. Wollenberg, C. Wu, J. F. Wu, L. H. Wu, L. J. Wu, X. Wu, X. H. Wu, Y. Wu, Y. J. Wu, Z. Wu, L. Xia, X. M. Xian, T. Xiang, D. Xiao, G. Y. Xiao, H. Xiao, S. Y. Xiao, Y. L. Xiao, Z. J. Xiao, C. Xie, X. H. Xie, Y. Xie, Y. G. Xie, Y. H. Xie, Z. P. Xie, T. Y. Xing, C. F. Xu, C. J. Xu, G. F. Xu, H. Y. Xu, Q. J. Xu, Q. N. Xu, W. Xu, W. L. Xu, X. P. Xu, Y. C. Xu, Z. P. Xu, Z. S. Xu, F. Yan, L. Yan, W. B. Yan, W. C. Yan, X. Q. Yan, H. J. Yang, H. L. Yang, H. X. Yang, Tao Yang, Y. Yang, Y. F. Yang, Y. X. Yang, Yifan Yang, Z. W. Yang, Z. P. Yao, M. Ye, M. H. Ye, J. H. Yin, Z. Y. You, B. X. Yu, C. X. Yu, G. Yu, J. S. Yu, T. Yu, X. D. Yu, C. Z. Yuan, L. Yuan, S. C. Yuan, X. Q. Yuan, Y. Yuan, Z. Y. Yuan, C. X. Yue, A. A. Zafar, F. R. Zeng, X. Zeng, Y. Zeng, Y. J. Zeng, X. Y. Zhai, Y. C. Zhai, Y. H. Zhan, A. Q. Zhang, B. L. Zhang, B. X. Zhang, D. H. Zhang, G. Y. Zhang, H. Zhang, H. H. Zhang, H. Q. Zhang, H. Y. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, J. X. Zhang, J. Y. Zhang, J. Z. Zhang, Jianyu Zhang, Jiawei Zhang, L. M. Zhang, L. Q. Zhang, Lei Zhang, P. Zhang, Q. Y. Zhang, Shuihan Zhang, Shulei Zhang, X. D. Zhang, X. M. Zhang, X. Y. Zhang, Xuyan Zhang, Y. Zhang, Y. T. Zhang, Y. H. Zhang, Yan Zhang, Yao Zhang, Z. H. Zhang, Z. L. Zhang, Z. Y. Zhang, G. Zhao, J. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, S. J. Zhao, Y. B. Zhao, Y. X. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, X. Zhong, H. Zhou, L. P. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, Y. Z. Zhou, J. Zhu, K. Zhu, K. J. Zhu, L. Zhu, L. X. Zhu, S. H. Zhu, S. Q. Zhu, T. J. Zhu, W. J. Zhu, Y. C. Zhu, Z. A. Zhu, J. H. Zou, and J. Zu
Subjects: Branching fraction, Charm Physics, e +-e − Experiments, Particle and Resonance Production, Nuclear and particle physics. Atomic energy. Radioactivity, QC770-798
Abstract: Abstract Using 2.93 fb −1 of e + e − collision data collected with the BESIII detector at the center-of-mass energy 3.773 GeV, we perform the first amplitude analysis of the decay D + → K S 0 $$ {K}_S^0 $$ π + π 0 π 0 and determine the relative magnitudes and phases of different intermediate processes. The absolute branching fraction of D + → K S 0 $$ {K}_S^0 $$ π + π 0 π 0 is measured to be (2.888 ± 0.058stat. ± 0.069syst. )%. The dominant intermediate processes are D + → K S 0 $$ {K}_S^0 $$ a 1(1260)+(→ ρ + π 0) and D + → K ¯ $$ \overline{K} $$ *0 ρ +, with branching fractions of (8.66 ± 1.04stat. ± 1.39syst. ) × 10 −3 and (9.70 ± 0.81stat. ± 0.53syst. ) × 10 −3, respectively.
Published: 2023
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7. Correction to: Microstructures and Mechanical Properties of Binary Al-Zn Alloys Fabricated by Casting and Heat Treatment

Author: W. B. Zhou, G. B. Teng, C. Y. Liu, H. Q. Qi, H. F. Huang, Y. Chen, and H. J. Jiang
Subjects: Mechanics of Materials, Mechanical Engineering, General Materials Science
Published: 2023

8. [The predictive value of ultrasonic measurement of the diaphragmatic thickening fraction combined with the maximal inspiratory pressure in mechanical ventilation patients]

Author: P, Zhang, H J, Jiang, Q, Zhou, X M, Ye, Z, Li, L P, Yuan, J F, Wu, L Y, Zhang, X G, Jiang, J Y, Wu, W H, Lu, and X B, Tao
Subjects: Maximal Respiratory Pressures, Predictive Value of Tests, Diaphragm, Humans, Prospective Studies, Respiration, Artificial, Ventilator Weaning
Published: 2020

9. [Lymphocyte activation gene 3 expression on T lymphocyte cell subsets in patients with myelodysplastic syndrome]

Author: N, Xie, Y Y, Sun, H J, Jiang, C Y, Liu, and Z H, Shao
Subjects: Adult, Aged, 80 and over, Male, T-Lymphocyte Subsets, Myelodysplastic Syndromes, Humans, Female, Middle Aged, Flow Cytometry, Lymphocyte Activation, T-Lymphocytes, Regulatory, Aged
Published: 2020

10. Fabrication of 7075-0.25Sc-0.15Zr Alloy with Excellent Damping and Mechanical Properties by FSP and T6 Treatment

Author: Y. F. Mo, C. Y. Liu, G. B. Teng, H. J. Jiang, Y. Chen, Z. X. Yang, and S. C. Han
Subjects: 010302 applied physics, Equiaxed crystals, Friction stir processing, Materials science, Fabrication, Mechanical Engineering, Alloy, 02 engineering and technology, engineering.material, 021001 nanoscience & nanotechnology, Microstructure, 01 natural sciences, Damping capacity, Mechanics of Materials, Phase (matter), 0103 physical sciences, engineering, General Materials Science, Composite material, 0210 nano-technology, Solid solution
Abstract: This study investigated the effects of Sc and Zr additions, friction stir processing (FSP), and subsequent solid solution and artificial aging (T6) treatment on the microstructure, damping capacity, and mechanical properties of 7075 Al alloy. The minor Sc and Zr additions promoted the grain refinement of this alloy during FSP and inhibited the growth of fine equiaxed grains in the FSP sample during subsequent T6 treatment. Thus, the fine equiaxed grain structure and high density of the η′ precipitated phase were simultaneously obtained in the 7075 Al alloy containing Sc and Zr after FSP and T6 treatment, and this sample exhibited superior mechanical properties and damping capacity to those of the 7075 Al alloy after T6 treatment. This work provides an effective strategy for preparing Al alloys with excellent damping capacity and mechanical properties.
Published: 2018

11. [Application of adaptie statistical iterative reconstruction technology combined with low tube voltage in three phase enhanced low dose liver scanning]

Author: G S, Jia, J P, Li, H Y, Hu, C L, Zhao, and H J, Jiang
Subjects: Adult, Male, Liver, Humans, Radiographic Image Interpretation, Computer-Assisted, Female, Middle Aged, Radiation Dosage, Radionuclide Imaging, Tomography, X-Ray Computed, Algorithms, Aged
Published: 2019

12. Design and simulation analysis of an aerospace damper

Author: Q. X. Wang, H. J. Jiang, Q. L. Wang, X. H. Zhou, and Y. H. Lin
Subjects: Engineering, business.industry, Mechanical engineering, business, Aerospace, Damper
Abstract: In this paper, viscoelastic materials are used to attenuate vibration for the optical remote sensor and satellite base. Flexible-base single-degree-of-freedom vibration attenuate system model is built considering that the satellite base is not rigid. The transfer ratio of the vibration damping system when the satellite platform foundation is non-rigid is obtained by using the four-terminal parameter method and the mechanical impedance method. Furthermore, the effects of mass ratio, fundamental frequency ratio, basic damping ratio and damper damping ratio on the vibration attenuate efficiency are discussed. According to the properties of integrated space optical remote sensor and satellite base, the optimum parameter combination between damping ratio and vibration attenuate efficiency is obtained. The design schemes of the viscoelastic material damper are refined using the simulation analysis results.
Published: 2020

13. [Advances of vascular medical research on vascular homeostasis and reconstruction in China]

Author: Y G, Zhu, L M, Yang, and H J, Jiang
Published: 2018

14. [Study on the transfer mechanism and destructive law of the bacterial antibiotic resistance genes disinfected by chlorination]

Author: Z W, Yang, H J, Jiang, Z Q, Chen, D, Yang, Z G, Qiu, L, Liu, J, Yin, H R, Wang, J W, Li, and M, Jin
Subjects: Disinfection, Halogenation, Drug Resistance, Bacterial, Escherichia coli, Humans, Anti-Bacterial Agents
Published: 2018

15. [Synchronous primary lung adenocarcinomas with epidermal growth factor receptor gene mutation and anaplastic lymphoma kinase fusion gene: report of a case]

Author: Y, Wang, L, Yang, H J, Jiang, J Y, Chen, H L, Zhang, and J P, Da
Published: 2018

16. [Comparison of the prognostic value of the seventh and eighth edition of

Author: H, Zhong, R, Ma, L, Gong, C G, Chen, P, Tang, P, Ren, H J, Jiang, and Z T, Yu
Subjects: Adult, Aged, 80 and over, Male, Esophageal Neoplasms, Middle Aged, Prognosis, Survival Rate, Lymphatic Metastasis, Multivariate Analysis, Carcinoma, Squamous Cell, Humans, Female, Esophageal Squamous Cell Carcinoma, Aged, Neoplasm Staging
Published: 2017

17. [Lymph node metastasis and prognostic factors for T1 esophageal cancer]

Author: X F, Duan, X B, Shang, P, Tang, H J, Jiang, L, Gong, J, Yue, M Q, Ma, and Z T, Yu
Subjects: Esophagectomy, Male, Esophageal Neoplasms, Risk Factors, Lymphatic Metastasis, Humans, Lymph Node Excision, Female, Lymph Nodes, Middle Aged, Prognosis, Neoplasm Staging, Retrospective Studies
Published: 2017

18. [Study on autophagy in nucleated red blood cells in patients with myelodysplastic syndromes]

Author: L Y, Yang, H Q, Wang, R, Fu, W, Qu, E B, Ruan, X M, Wang, G J, Wang, Y H, Wu, H, Liu, J, Song, J, Guan, L M, Xing, L J, Li, H J, Jiang, Y H, Wang, C Y, Liu, W, Zhang, and Z H, Shao
Subjects: Erythrocytes, Erythroblasts, TOR Serine-Threonine Kinases, Myelodysplastic syndromes, Membrane Proteins, 贫血, Bone Marrow Cells, Anemia, Flow Cytometry, 骨髓增生异常综合征, 论著, Microscopy, Electron, Transmission, Bone Marrow, Autophagy, Erythrocyte Count, Humans, 自噬
Abstract: 目的研究骨髓增生异常综合征（MDS）患者有核红细胞的自噬水平。方法 54例MDS患者为实验组，对照组33例。采用透射电镜观察自噬过程，流式细胞术检测骨髓细胞中GlycoA+有核红细胞自噬相关蛋白微管相关蛋白轻链3B（LC3B）的表达水平，Real-time PCR法检测GlycoA+有核红细胞自噬相关基因AMPK、ULK1和mTOR mRNA的表达，Western blot法检测GlycoA+有核红细胞线粒体外膜蛋白TOM20的表达。结果 MDS患者有核红细胞中不易观察到自噬体及自噬溶酶体。相对高危组MDS患者有核红细胞LC3B表达（0.22±0.12）显著低于对照组（0.43±0.22，P
Published: 2017

19. [NIX-mediated mitochondrial autophagy in pathogenesis of myelodysplastic syndrome anemia]

Author: L Y, Yang, N B, Cui, H Q, Wang, R, Fu, W, Qu, E B, Ruan, X M, Wang, G J, Wang, Y H, Wu, H, Liu, J, Song, J, Guan, L M, Xing, L J, Li, H J, Jiang, Y H, Wang, C Y, Liu, W, Zhang, and Z H, Shao
Subjects: Myelodysplastic Syndromes, Proto-Oncogene Proteins, Tumor Suppressor Proteins, Autophagy, Humans, Membrane Proteins, Anemia, Bone Marrow Cells, Mitochondria
Published: 2017

20. [Value of multi-slice spiral CT in preoperative diagnosis of pancreatic cancer]

Author: G L, Feng, H J, Jiang, J P, Li, H, Jiang, and W B, Pan
Subjects: Pancreatic Neoplasms, Lymphatic Metastasis, Humans, Tomography, Spiral Computed, Neoplasm Staging, Retrospective Studies
Published: 2017

21. [Comparison of the effect of lymph node dissection performed by Ivor-Lewis or left-sided thoracic esophagogastrectomy for Siewert type Ⅱ adenocarcinoma of the esophagogastric junction]

Author: X F, Duan, L, Gong, M Q, Ma, J, Yue, P, Tang, X B, Shang, H J, Jiang, and Z T, Yu
Subjects: Male, Esophageal Neoplasms, Operative Time, Blood Loss, Surgical, Adenocarcinoma, Esophagectomy, Postoperative Complications, Thoracotomy, Gastrectomy, Stomach Neoplasms, Humans, Lymph Node Excision, Female, Esophagogastric Junction, Retrospective Studies
Published: 2017

22. Structural design and simulation analysis of the carbon fiber-reinforced polymer main frame of a mapping camera system

Author: Q X Wang, Q L Wang, X H Zhou, Lei Zhang, H J Jiang, and W Z Wang
Subjects: chemistry.chemical_classification, Carbon fiber reinforced polymer, Materials science, Flexibility (anatomy), medicine.anatomical_structure, chemistry, Frame (networking), medicine, Polymer, Composite material
Published: 2019

23. [An investigation for standardized diagnosis and treatment of idiopathic normal-pressure hydrocephalus]

Author: H J, Jiang, J M, Zhang, W M, Fu, Z, Zheng, W, Luo, Y X, Zheng, and J M, Zhu
Subjects: Adult, Male, Treatment Outcome, Humans, Middle Aged, Prognosis, Cerebrospinal Fluid Shunts, Hydrocephalus, Normal Pressure, Neurosurgical Procedures, Aged, Retrospective Studies
Abstract: To investigate some important issues for diagnosis and treatment of idiopathic normal-pressure hydrocephalus (iNPH), such as standardized pre-operative assessment, initial pressure value of diverter pump, and pressure regulation during follow-up.Twenty six iNPH patients (21 males) who treated in Department of Neurosurgery of 2nd Affiliated Hospital of Zhejiang University School of Medicine from 2011 to 2015 were analyzed retrospectively. The average age was 60.5 year. The analysis focused on the treatment process of iNPH, initial pressure value of diverter pump, choice of diverter pump, and pressure regulation during follow-up.As a result, 24 cases (92.3%) had a good prognosis based on their imaging and clinical manifestations. Based on the literature and their clinical experiences, this department established a diagnosis and treatment procedure of iNPH and a pressure regulation procedure for the follow-up of iNPH. Moreover, it is proposed that choosing an anti-gravity diverter pump and making an initial pressure value 20 mmH2O less than pre-surgical cerebrospinal pressure may be beneficial for the prognosis.This standardized diagnosis and treatment procedure for iNPH is practical and effective.
Published: 2016

24. The muon system of the Daya Bay Reactor antineutrino experiment

Author: A. B. Balantekin, V. Pec, P. Y. Lin, S. Hans, I. Mitchell, Li Chang, Yi Wei, W. R. Edwards, Juan Pedro Ochoa-Ricoux, H. Liu, Y. B. Hsiung, Christopher G. White, E. Dale, Changgen Yang, K. Zhang, E. C. Huang, Miao He, X. C. Chen, E. Naumova, D. A. Dwyer, Jiawen Zhang, H. M. Steiner, W. C. Lai, Lin Yang, P. Hinrichs, C. Pearson, Jing Zhao, Q. W. Zhao, Bing-Lin Young, Jeremiah Monari Kebwaro, Xin Qian, X. Y. Ma, H. Themann, C. Lu, Zhongyuan Zhou, J. L. Xu, G. X. Sun, Chun S. J. Pun, H. Z. Huang, Guanghua Gong, J. Goett, J. Y. Xu, B. B. Shao, Tao Hu, H. Y. Wei, Y. C. Tung, S. K. Lin, Shaomin Chen, X. C. Ruan, Jun Cao, Xiao-yan Li, Steve Virostek, S. J. Patton, W. Q. Gu, L. Kang, Y. Xu, Y. M. Zhang, H. R. Band, J. K. C. Leung, N. Y. Wang, B. Viren, Vit Vorobel, Zhi-zhong Xing, H. Liang, Yixue Chen, H. S. Chen, Rupert Leitner, M. C. McFarlane, Z. Isvan, Dmitry V. Naumov, Wei Li, R. G. Wang, L. S. Wang, T. Kwok, Guey-Lin Lin, Zeyuan Yu, J. B. Jiao, H. Q. Lu, Liangjian Wen, Guofu Cao, M. V. Diwan, Xiaohu Guo, Y. H. Zhang, Liang Zhan, L. H. Whitehead, J. Y. Fu, N. Raper, T. Wise, Zhiyong Zhang, K. T. McDonald, R. T. Lei, X. Q. Li, M. T. Yang, B. R. Littlejohn, G. Y. Yu, E. Draeger, Qinglong Wu, Kam Biu Luk, D. M. Webber, S. J. Chen, X. P. Ji, R. H.M. Tsang, S. H. Kettell, X. B. Ma, X. F. Du, Wei Wang, Y. K. Hor, Patrick Huber, H. L. Zhuang, Jianglai Liu, X. L. Ji, Y. Ma, L. Z. Wang, J. Xu, Y. H. Tam, Jinjuan Ren, X. Wang, J. J. Cherwinka, X. Tang, J. F. Chang, Min-Xin Guan, Chao Zhang, Yu-leung Chan, S. H. Zhang, D. M. Xia, Z. D. Wang, Y. Wang, Q. J. Li, G. H. Han, Dejun Li, Y. Zhao, J. L. Sun, Qingmin Zhang, D. Mohapatra, Maxim Gonchar, Tian Xue, Q. Y. Chen, C. R. Newsom, Li Zhou, C. Chasman, Y. P. Cheng, F. H. Zhang, E. T. Worcester, Jim Napolitano, Y. H. Chang, Guisen Li, H. X. Huang, Honghan Gong, Z. Y. Deng, Z. P. Zhang, Y. B. Liu, J. de Arcos, R. A. Johnson, H. J. Jiang, Y. K. Heng, R. W. Hackenburg, W. K. Ngai, Z. Wang, Changjian Lin, R. Carr, Qingming Ma, D. E. Jaffe, J. L. Liu, Siew Cheng Wong, C. A. Lewis, S. L. Zang, Jiaheng Zou, K. Whisnant, L. Q. Ge, C. H. Wang, Richard Rosero, Y. Nakajima, M. W. Kwok, Wenjie Wang, K. V. Tsang, Lawrence Pinsky, L. Y. Wang, Yue Meng, L. J. Hu, S. S. Liu, Igor Nemchenok, Zhijian Zhang, L. Zheng, J. Lee, F. P. An, B. Ren, H. L. H. Wong, Y. X. Zhang, A. Leung, M. H. Ye, J. Yan, H. Y. Ngai, R. L. Gill, G. Hussain, Michael Kramer, C. E. Tull, Jin Yu, R. D. McKeown, F. Z. Qi, J. E. Morgan, Jen-Chieh Peng, X. Xia, J. M. Link, J. P. Cummings, L. M. Hu, P. Jaffke, W. Beriguete, R. E. Brown, Huo Yan Chen, Xingtao Huang, Y. Z.B. Li, L. S. Littenberg, Zhi Ning, L. Lebanowski, Y. Y. Ding, Kwong Lau, J. Wilhelmi, Xiaoyuan Chen, K. K. Kwan, Ilya Butorov, Mengsu Yang, W. Zhong, A. G. Olshevski, Guo-Lin Xu, Yi Chen, Q. He, B. Z. Hu, F. Li, Simon Blyth, M. Z. Wang, Ming Chung Chu, W. Hu, K. M. Heeger, J. K. Xia, Wing-Hon Lai, M. Qi, S. R. Ely, D. W. Liu, Minfang Yeh, M. Bishai, B. Roskovec, Yaolin Zhao, L. E. Piilonen, S. Jetter, and Y. S. Yeh
Subjects: Physics, Nuclear and High Energy Physics, Photomultiplier, Physics - Instrumentation and Detectors, Muon, Physics::Instrumentation and Detectors, Shields, FOS: Physical sciences, Cosmic ray, Daya Bay Reactor Neutrino Experiment, Instrumentation and Detectors (physics.ins-det), Nuclear reactor, High Energy Physics - Experiment, law.invention, Nuclear physics, High Energy Physics - Experiment (hep-ex), law, High Energy Physics::Experiment, Neutrino, Instrumentation, Cherenkov radiation
Abstract: The Daya Bay experiment consists of functionally identical antineutrino detectors immersed in pools of ultrapure water in three well-separated underground experimental halls near two nuclear reactor complexes. These pools serve both as shields against natural, low-energy radiation, and as water Cherenkov detectors that efficiently detect cosmic muons using arrays of photomultiplier tubes. Each pool is covered by a plane of resistive plate chambers as an additional means of detecting muons. Design, construction, operation, and performance of these muon detectors are described., Comment: 13 pages, 22 figures, to appear as NIM-A 773 (2015) 8-20
Published: 2015

25. Preparation and characterization of three-dimensional braided carbon/Kevlar/epoxy hybrid composites

Author: H. J. Jiang, Y. Huang, J.J. Lian, Fang He, Y. Z. Wan, Y.L. Wang, and J. Y. Xin
Subjects: Materials science, Mechanical Engineering, Composite number, Carbon fibers, Kevlar, Epoxy, Characterization (materials science), Shear (sheet metal), Flexural strength, Mechanics of Materials, visual_art, visual_art.visual_art_medium, General Materials Science, Composite material, Damage tolerance
Abstract: Though unidirectional, short, and laminated hybrid composites have been extensively investigated because of their wider range of properties than non-hybrid composites, literature on three-dimensional (3-D) braided hybrid composites is very limited. In this work, Kevlar fibers were hybridized to carbon fibers to prepare 3-D carbon/Kevlar/epoxy composites with various carbon to Kevlar fiber volume ratios in an attempt to find alternative materials for osteosynthesis devices. The flexural, shear, and impact properties of the 3-D braided hybrid composites were measured in order to investigate the effect of carbon to Kevlar ratio and evaluate hybrid effects. In addition, residual flexural strength was tested for the impacted samples and the damage tolerance was assessed. Our experimental results revealed the existence of positive hybrid effects on the shear and flexural strengths flexural strain for the 3-D braided composites. The absorbed energy and flexural strength retention of the 3-D braided hybrid composites were found to decrease with relative carbon fiber content. It was shown that hybridizing ductile 3-D braided Kevlar fabric with stiff carbon fabric could result in the hybrid composites with flexural strength comparable to the all-carbon composite and impact damage tolerance superior to the all-Kevlar composite.
Published: 2006

26. Independent measurement of the neutrino mixing angleθ13via neutron capture on hydrogen at Daya Bay

Author: S. S. Liu, Xiaohui Qian, J. Lee, H. L. H. Wong, C. E. Tull, A. Leung, Y. C. Lin, J. Yan, H. Y. Ngai, R. L. Gill, M. Ye, G. Hussain, Richard Rosero, E. Naumova, D. A. Dwyer, L. S. Wang, Y. L. Chan, Y. S. Yeh, D. M. Webber, X. L. Ji, Jen-Chieh Peng, Lin Yang, X. Xia, Yi Wei, J. K. C. Leung, J. Y. Fu, T. Wise, H. M. Steiner, D. W. Liu, Minfang Yeh, Qiumei Ma, Jinmei Liu, Jing Zhao, X. Y. Ma, Y. Q. Ma, Qinglong Wu, Y. H. Tam, V. Pec, P. Y. Lin, S. Hans, Z. P. Zhang, Y. B. Liu, H. J. Jiang, Christopher C. Yang, M. Qi, S. R. Ely, J. Y. Xu, S. H. Kettell, X. B. Ma, X. Wang, M. W. Kwok, Wenjie Wang, B. Roskovec, Baoqing Zeng, I. Mitchell, M. Bishai, Z. M. Wang, Li Zhou, Qingmin Zhang, Xi Chen, H. S. Chen, Guisen Li, Haoqi Lu, Juan Pedro Ochoa-Ricoux, L. M. Hu, Tian Xue, W. L. Zhong, J. P. Cummings, Vit Vorobel, L. H. Whitehead, Michael Kramer, Q. Y. Chen, Dejun Li, Honghan Gong, Maxim Gonchar, D. E. Jaffe, Y. F. Wang, Z. Isvan, Ziyan Deng, Xinglong Li, Wei Li, H. Z. Huang, Jianglai Liu, L. S. Pinsky, R. A. Johnson, Chun S. J. Pun, Miao He, Yaping Cheng, Siew Cheng Wong, Jiawen Zhang, Y. K. Heng, S. J. Patton, W. Q. Gu, Christopher G. White, Shaomin Chen, Jun Cao, Jiaheng Zou, W. Wang, B. B. Shao, Mengyun Guan, W. C. Lai, S. L. Zang, Jin Yu, Yaolin Zhao, K. T. McDonald, Bin Ren, Jim Napolitano, H. Y. Wei, H. L. Zhuang, M. C. McFarlane, K. V. Tsang, R. H.M. Tsang, Li Chang, Zhiyong Zhang, H. Themann, Xiao Tang, Dmitry V. Naumov, Rupert Leitner, C. A. Lewis, Guanghua Gong, Y. B. Hsiung, R. D. McKeown, E. Draeger, Chi Lin, W. R. Edwards, J. F. Chang, T. Kwok, Guey-Lin Lin, K. Whisnant, M. V. Diwan, L. Y. Wang, Y. C. Tung, Y. Xu, Y. M. Zhang, X. T. Huang, F. Li, Y. K. Hor, J. J. Cherwinka, S. K. Lin, X. Q. Li, Zhongyuan Zhou, B. R. Littlejohn, Zhi-zhong Xing, P. Hinrichs, K. M. Heeger, Patrick Huber, Jinjuan Ren, Q. J. Li, C. Lu, X. C. Ruan, Y. Zhao, Jia Xu, Chao Zhang, X. F. Du, Bing-Lin Young, X. P. Ji, Yufeng Li, J. L. Xu, K. L. Jen, J. K. Xia, H. Liang, Yixue Chen, P. Jaffke, G. H. Han, B. Z. Hu, H. R. Band, Z. B. Li, W. Beriguete, Liangjian Wen, Guofu Cao, J. L. Sun, Simon Blyth, R. W. Hackenburg, Z. Wang, E. T. Worcester, F. Z. Qi, M. Z. Wang, Ming Chung Chu, J. de Arcos, T. Hu, W. Hu, Yan Zhang, A. B. Balantekin, L. Kang, N. Raper, L. E. Piilonen, F. H. Zhang, N. Y. Wang, B. Viren, H. Liu, X. H. Guo, C. H. Wang, S. Jetter, R. G. Wang, Y. H. Chang, Liang Zhan, Qingxian Zhang, M. T. Yang, Y. Nakajima, G. Y. Yu, Z. Y. Yu, S. H. Zhang, D. M. Xia, C. Chasman, J. B. Jiao, R. T. Lei, E. C. Huang, J. J. Ling, Q. W. Zhao, L. Q. Ge, Y. C. Zhang, Y. X. Zhang, L. Lebanowski, Y. Y. Ding, Yue Meng, Kam-Biu Luk, K. K. Kwan, L. J. Hu, Ilya Butorov, Fengpeng An, A. G. Olshevski, J. Monari Kebwaro, Yi Chen, Kwong Lau, G. X. Sun, Mengsu Yang, Igor Nemchenok, Zhijian Zhang, L. Zheng, J. M. Link, L. S. Littenberg, and Zhi Ning
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Hydrogen, Oscillation, Gamma ray, chemistry.chemical_element, Daya Bay Reactor Neutrino Experiment, Nuclear physics, Neutron capture, chemistry, Neutrino, Neutrino oscillation, Charged current
Abstract: A new measurement of the θ_(13) mixing angle has been obtained at the Daya Bay Reactor Neutrino Experiment via the detection of inverse beta decays tagged by neutron capture on hydrogen. The antineutrino events for hydrogen capture are distinct from those for gadolinium capture with largely different systematic uncertainties, allowing a determination independent of the gadolinium-capture result and an improvement on the precision of the θ_(13) measurement. With a 217-day antineutrino data set obtained with six antineutrino detectors and from six 2.9 GW_(th) reactors, the rate deficit observed at the far hall is interpreted as sin^2 2θ_(13) = 0.083±0.018 in the three-flavor oscillation model. When combined with the gadolinium-capture result from Daya Bay, we obtain sin^2 2θ_(13) = 0.089±0.008 as the final result for the six-antineutrino-detector configuration of the Daya Bay experiment.
Published: 2014

27. Spectral Measurement of Electron Antineutrino Oscillation Amplitude and Frequency at Daya Bay

Author: J. B. Jiao, M. Qi, S. R. Ely, R. T. Lei, H. Z. Huang, M. Bishai, D. W. Liu, Minfang Yeh, V. Pec, S. Hans, Yk Hor, S. J. Patton, W. Q. Gu, H. S. Chen, W. L. Zhong, B. Roskovec, F. H. Zhang, H. X. Huang, F. Li, Jiawen Zhang, Xin Heng Guo, K. M. Heeger, Yi Wei, K. V. Tsang, Miao He, Michael Kramer, Z. P. Zhang, Y. B. Liu, H. J. Jiang, H. Y. Wei, Huo Yan Chen, Igor Nemchenok, Zhijian Zhang, L. Zheng, R. Carr, Y. P. Cheng, J. K. Xia, Xingtao Huang, R. G. Wang, Wing-Hon Lai, D. M. Webber, Changgen Yang, Y. Zhang, Xubo Ma, Jinjuan Ren, Q. J. Li, J. Napolitano, F. P. An, B. Ren, X. C. Chen, Y. H. Zhang, X. L. Ji, P. Hinrichs, Liang Zhan, R. W. Hackenburg, Z. Wang, Zheng Wang, Jin Yu, L. Q. Ge, B. B. Shao, Y. H. Tam, X. Wang, Zhongyuan Zhou, J. J. Cherwinka, T. Kwok, Guey-Lin Lin, Chun S. J. Pun, Haoqi Lu, Dejun Li, B. Z. Hu, Simon Blyth, K. Lau, Tao Hu, Rupert Leitner, Yue Meng, Kam-Biu Luk, S. H. Kettell, C. Lu, J. L. Xu, X. P. Ji, Y. A. Gornushkin, S. K. Lin, R. L. Brown, Y. C. Zhang, M. Z. Wang, L. J. Hu, L. S. Littenberg, Zhi Ning, Ming Chung Chu, W. Hu, Lawrence Pinsky, L. Lebanowski, Y. Y. Ding, Liangjian Wen, Qingmin Zhang, B. R. Littlejohn, X. F. Du, Shaomin Chen, Jun Cao, A. B. Balantekin, Zeyuan Yu, Y. Xu, E. C. Huang, Li Zhou, N. Y. Wang, J. L. Sun, L. E. Piilonen, K. T. McDonald, L. Y. Wang, Guofu Cao, M. C. McFarlane, Dmitry V. Naumov, L. Kang, W. C. Lai, B. Viren, Vit Vorobel, Q. W. Zhao, Maxim Gonchar, Z. Isvan, Wei Li, S. Jetter, R. A. Johnson, L. H. Whitehead, Xiaoyuan Chen, X. N. Li, R. H.M. Tsang, Richard Rosero, Yanchu Wang, X. Q. Li, H. Liu, J. M. Link, J. P. Cummings, K. K. Kwan, Ilya Butorov, M. V. Diwan, E. Draeger, J. J. Ling, Zhiyong Zhang, C. A. Lewis, H. L. Zhuang, A. G. Olshevski, Y. Nakajima, M. W. Kwok, Wenjie Wang, Mengsu Yang, K. Whisnant, E. T. Worcester, J. de Arcos, S. Trentalange, Guisen Li, Honghan Gong, Z. Y. Deng, W. K. Ngai, Qingming Ma, H. K. Tanaka, Yu-leung Chan, Qinglong Wu, Siew Cheng Wong, Min-Xin Guan, X. Tang, Yi Chen, W. P. Wang, Jiaheng Zou, Tian Xue, C. White, C. H. Wang, D. E. Jaffe, G. Y. Yu, Yufeng Li, Y. K. Heng, W. R. Edwards, Y. S. Yeh, S. L. Zang, J. K. C. Leung, Y. H. Chang, Zhibing Li, G. X. Sun, X. C. Ruan, L. M. Hu, Chao Zhang, G. H. Han, S. H. Zhang, D. M. Xia, C. Chasman, Y. B. Hsiung, Lin Yang, O. D. Tsai, Jinmei Liu, Jing Zhao, X. Y. Ma, J. Y. Xu, I. Mitchell, Y. C. Tung, L. S. Wang, S. J. Chen, Jianglai Liu, Xin Qian, R. L. Hahn, Zhi-zhong Xing, J. Y. Fu, T. Wise, L. Z. Wang, F. Z. Qi, J. F. Chang, Jen-Chieh Peng, X. Xia, H. Themann, Guanghua Gong, Chi Lin, P. Jaffke, W. Beriguete, Yi-Fang Zhao, M. H. Ye, Juan Pedro Ochoa-Ricoux, H. R. Band, H. Liang, Yixue Chen, N. Raper, C. E. Tull, G. Hussain, S. S. Liu, J. Lee, H. L. H. Wong, Y. X. Zhang, J. Xu, A. Leung, Y. C. Lin, J. Yan, R. D. McKeown, H. Y. Ngai, R. L. Gill, Patrick Huber, Bing-Lin Young, E. Naumova, D. A. Dwyer, H. M. Steiner, and Y. Q. Ma
Subjects: Physics, Oscillation, FOS: Physical sciences, General Physics and Astronomy, Daya Bay Reactor Neutrino Experiment, Electron, Spectral line, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Muon neutrino, Nuclear Experiment (nucl-ex), Nuclear Experiment, Oscillation amplitude, Electron neutrino, Energy (signal processing)
Abstract: A measurement of the energy dependence of antineutrino disappearance at the Daya Bay Reactor Neutrino Experiment is reported. Electron antineutrinos ($\overline{\nu}_{e}$) from six $2.9$ GW$_{\rm th}$ reactors were detected with six detectors deployed in two near (effective baselines 512 m and 561 m) and one far (1579 m) underground experimental halls. Using 217 days of data, 41589 (203809 and 92912) antineutrino candidates were detected in the far hall (near halls). An improved measurement of the oscillation amplitude $\sin^{2}2\theta_{13} = 0.090^{+0.008}_{-0.009} $ and the first direct measurement of the $\overline{\nu}_{e}$ mass-squared difference $|\Delta m^{2}_{ee}|= (2.59_{-0.20}^{+0.19}) \times 10^{-3}\ {\rm eV}^2 $ is obtained using the observed $\overline{\nu}_{e}$ rates and energy spectra in a three-neutrino framework. This value of $|\Delta m^{2}_{ee}|$ is consistent with $|\Delta m^{2}_{\mu\mu}|$ measured by muon neutrino disappearance, supporting the three-flavor oscillation model., Comment: As accepted for publication by Phys. Rev. Lett. including ancillary table
Published: 2014

28. Search for a light sterile neutrino at daya bay

Author: Kirk T. McDonald, L. S. Wang, J. Y. Fu, A. G. Olshevski, E. Draeger, T. Wise, M. V. Diwan, H. L. Zhuang, Xi Chen, X. Q. Li, W. C. Lai, E. T. Worcester, F. Li, J. de Arcos, J. Monari Kebwaro, J. J. Cherwinka, Bing-Lin Young, Yi Chen, J. F. Chang, X. Tang, Jianglai Liu, R. H.M. Tsang, Y. Xu, E. C. Huang, Yu Zhang, Juan Pedro Ochoa-Ricoux, Yu-leung Chan, L. Lebanowski, Y. Y. Ding, Y. Zhao, C. H. Wang, Z. B. Li, S. H. Kettell, Yufeng Li, V. Pec, P. Y. Lin, J. J. Ling, E. Naumova, D. A. Dwyer, Q. W. Zhao, Yi Wei, S. Hans, Y. K. Hor, Marco Grassi, Miao He, K. K. Kwan, Ilya Butorov, Patrick Huber, G. X. Sun, Christopher C. Yang, Jen-Chieh Peng, X. C. Ruan, Y. S. Yeh, H. M. Steiner, Chao Zhang, Xin Qian, W. Zhong, C. A. Lewis, X. Xia, L. M. Hu, Lin Yang, G. H. Han, H. Themann, Jinmei Liu, K. B. Luk, Baoqing Zeng, J. B. Jiao, K. Whisnant, Maxim Gonchar, Xiao-yan Li, Guanghua Gong, Jing Zhao, D. E. Jaffe, Vit Vorobel, Z. Isvan, Chi Lin, Zhi-zhong Xing, X. Y. Ma, J. Y. Xu, S. L. Zang, A. B. Balantekin, Wei Li, I. Mitchell, R. A. Johnson, J. K. C. Leung, H. S. Chen, Jinjuan Ren, Q. J. Li, J. Xu, Y. C. Tung, X. P. Ji, Jiawen Zhang, H. Liu, Y. H. Tam, X. Wang, J. L. Sun, R. T. Lei, Qingmin Zhang, H. R. Band, H. Liang, Yixue Chen, Chun S. J. Pun, B. B. Shao, Haoqi Lu, Dejun Li, Q. X. Zhang, Shaomin Chen, Jun Cao, Q. Y. Chen, J. Cummings, H. Y. Wei, Zhiyong Zhang, Min-Xin Guan, Y. P. Cheng, Jim Napolitano, S. H. Zhang, Michael Kramer, D. M. Xia, M. C. McFarlane, Xubo Ma, R. W. Hackenburg, Li Chang, N. Raper, Dmitry V. Naumov, Xiaohu Guo, Z. Wang, Rupert Leitner, M. T. Yang, C. Chasman, Zeyuan Yu, W. R. Edwards, Jin Yu, Y. B. Hsiung, G. Y. Yu, T. Kwok, Guey-Lin Lin, L. Q. Ge, Qinglong Wu, R. D. McKeown, F. Z. Qi, Y. Ma, Zhongyuan Zhou, L. Kang, B. R. Littlejohn, Y. H. Chang, P. Jaffke, W. Beriguete, Y. Wang, X. F. Du, Tian Xue, Wei Wang, F. H. Zhang, Christopher G. White, Z. P. Zhang, Y. B. Liu, H. J. Jiang, H. Z. Huang, K. L. Jen, Y. K. Heng, Zheng Wang, S. J. Patton, W. Q. Gu, S. K. Lin, Liangjian Wen, Guofu Cao, Tao Hu, N. Y. Wang, R. G. Wang, D. M. Webber, X. L. Ji, Y. H. Zhang, Liang Zhan, G. Hussain, B. Viren, Li Zhou, C. E. Tull, S. S. Liu, J. Lee, H. L. H. Wong, Y. X. Zhang, A. Leung, Y. C. Lin, J. Yan, H. Y. Ngai, R. L. Gill, Richard Rosero, Y. Nakajima, M. W. Kwok, Wenjie Wang, K. V. Tsang, Lawrence Pinsky, L. Y. Wang, M. H. Ye, Guisen Li, Honghan Gong, Z. Y. Deng, Qingming Ma, Siew Cheng Wong, Jiaheng Zou, Igor Nemchenok, Zhijian Zhang, L. Zheng, F. P. An, B. Ren, Yue Meng, L. J. Hu, D. W. Liu, Minfang Yeh, B. Roskovec, J. K. Xia, K. M. Heeger, Kwong Lau, Mengsu Yang, Y. Zhang, P. Hinrichs, C. Lu, J. L. Xu, L. H. Whitehead, J. M. Link, Xingtao Huang, M. Qi, S. R. Ely, M. Bishai, Yaolin Zhao, L. S. Littenberg, Zhi Ning, B. Z. Hu, Simon Blyth, M. Z. Wang, Ming Chung Chu, W. Hu, L. E. Piilonen, and S. Jetter
Subjects: Physics, Sterile neutrino, Oscillation, Daya bay, FOS: Physical sciences, General Physics and Astronomy, Spectral distortion, Daya Bay Reactor Neutrino Experiment, Electron, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Neutrino, Neutrino oscillation
Abstract: A search for light sterile neutrino mixing was performed with the first 217 days of data from the Daya Bay Reactor Antineutrino Experiment. The experiment's unique configuration of multiple baselines from six 2.9~GW$_{\rm th}$ nuclear reactors to six antineutrino detectors deployed in two near (effective baselines 512~m and 561~m) and one far (1579~m) underground experimental halls makes it possible to test for oscillations to a fourth (sterile) neutrino in the $10^{\rm -3}~{\rm eV}^{2} < |\Delta m_{41}^{2}| < 0.3~{\rm eV}^{2}$ range. The relative spectral distortion due to electron antineutrino disappearance was found to be consistent with that of the three-flavor oscillation model. The derived limits on $\sin^22\theta_{14}$ cover the $10^{-3}~{\rm eV}^{2} \lesssim |\Delta m^{2}_{41}| \lesssim 0.1~{\rm eV}^{2}$ region, which was largely unexplored., Comment: 7 pages, 4 figures
Published: 2014

29. Characterization of photosensitive hybrid sol-gel glass with high-energy beam-sensitive grey-scale mask in single-step fabrication of blazed gratings

Author: Xin Yuan, H. J. Jiang, and W. C. Cheong
Subjects: Materials science, Fabrication, Acoustics and Ultrasonics, business.industry, Photoresist, Condensed Matter Physics, Grey scale, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, law.invention, Characterization (materials science), Optics, Photopolymer, law, Etching (microfabrication), Blazed grating, business, Sol-gel
Abstract: A new photosensitive negative-tone inorganic-organic hybrid SiO2/TiO2 glass is investigated for fabrication of microoptical elements. The sol-gel material enjoys an advantage over the conventional photoresist-based fabrication techniques due to its single-step process without etching. The application of the high-energy beam-sensitive (HEBS) mask in the process provides a reliable and simple method for three-dimensional microoptical fabrications in a single UV exposure. The technique using the \mbox{sol-gel} material with the HEBS grey-scale mask has considerable potential for low-cost mass production of complex, multilevel, diffractive optical elements and microoptical structures.
Published: 2001

30. Do Primary Care Physicians or Specialists Provide More Efficient Care?

Author: C.-W. Pai, Yasar A. Ozcan, and H. J. Jiang
Subjects: medicine.medical_specialty, Decision Making, Primary care, Efficiency, Organizational, Patient care, Otolaryngology, 03 medical and health sciences, 0302 clinical medicine, medicine, Humans, Practice Patterns, Physicians', Sinusitis, 030223 otorhinolaryngology, health care economics and organizations, Primary Health Care, Medicaid, business.industry, 030503 health policy & services, Health Policy, Virginia, medicine.disease, United States, Family medicine, Health complaint, Health Services Research, Family Practice, 0305 other medical science, business
Abstract: Sinusitis is a common health complaint and expenditures for its treatment are high; thus, it is necessary to promote efficient practice behaviours in managing patient care. This study compares resource utilization between primary care physicians and specialists in the treatment of Medicaid sinusitis patients in Virginia. Physician-level data from Virginia Medicaid claim files for 1993 were analysed. The efficiency frontier, representing the best achievable performance in the use of resources for treating sinusitis, is identified using Data Envelopment Analysis. Resource utilization (primary care physician visits, specialist visits, emergency room usage, prescriptions and laboratory tests) and corresponding costs are compared between generalists and otolaryngologists. It was concluded from this study that there are no discernible differences in technical efficiency between generalists and specialists in the treatment of sinusitis. Nevertheless, otolaryngologists are found to be more costly than generalists in treating sinusitis. Variation in both caseload and patient mix might explain variation in use of resources.
Published: 2000

31. Observation of electron-antineutrino disappearance at Daya Bay

Author: D. M. Webber, X. Huang, A. Pagac, Y. Wang, Pu Huang, W. Q. Jiang, F. H. Zhang, L. Lebanowski, Y. Y. Ding, M. Qi, S. R. Ely, M. Bishai, H. X. Huang, J. J. Cherwinka, Tian Xue, H. C. Wong, Xuejun Liu, Y. A. Gornushkin, Guisen Li, Y. K. Heng, A. G. Olshevski, Xiaoyuan Chen, Yaolong Zhang, Yi Wei, Meng Wang, X. C. Chen, K. K. Kwan, Jianbin Xu, C. E. Tull, Yi Chen, Q. He, Li Zhou, Honghan Gong, Z. Y. Deng, E. Draeger, H. Themann, Guanghua Gong, P. Stoler, M. V. Diwan, W. K. Ngai, S. D. Fang, W. Zhong, H. L. Zhuang, K. T. McDonald, E. T. Worcester, Qingming Ma, J. K. C. Leung, Min-Xin Guan, B. R. Littlejohn, Chi Lin, L. E. Piilonen, T. Wise, Y. X. Chen, R. H.M. Tsang, W. C. Lai, Zhongyuan Zhou, S. Jetter, Q. J. Li, S. H. Kettell, K. Shih, Jiaheng Zou, Wai Ting Chan, C. White, H. Z. Huang, W. P. Wang, Igor Nemchenok, Zhijian Zhang, A. B. Balantekin, L. Zheng, Michael Kramer, C. A. Lewis, Xiaoyan Ma, B. Viren, Yufeng Li, L. Kang, B. B. Shao, C. R. Newsom, Vit Vorobel, S. J. Patton, W. Q. Gu, Richard Rosero, Lei Yang, Z. Isvan, K. Y. Leung, L. Q. Ge, D. Wenman, Guo-Lin Xu, Wei Li, J. E. Morgan, K. Whisnant, Y. H. Chang, D. Mohapatra, Maxim Gonchar, Joonho Lee, X. L. Ji, W. S. He, J. Napolitano, F. P. An, Wing-Hon Lai, X. B. Li, D. R. Beavis, L. S. Wang, Rupert Leitner, Zeyuan Yu, B. Z. Hu, T. Luo, Y. Xu, Chun S. J. Pun, S. Blyth, J. Goett, C. H. Wang, R. A. Johnson, K. Zhang, Shaomin Chen, Jun Cao, H. S. Chen, Zhenyu Zhang, Zhiyong Zhang, Ming Chung Chu, Bei Cai, V. Ghazikhanian, Changgen Yang, Y. Nakajima, Jiawen Zhang, M. W. Kwok, P. Hinrichs, K. Lau, Q. W. Zhao, S. F. Li, B. Seilhan, M. C. McFarlane, Y. B. Hsiung, R. W. Hackenburg, V. Pec, S. J. Chen, C. Liu, J. Cummings, Sa Liu, Yue Meng, Ching-Yao Lai, R. D. McKeown, Tao Hu, F. F. Wu, S. Hans, Jianglai Liu, T. H. Ho, F. Z. Qi, Dmitry V. Naumov, C. Lu, Minfang Yeh, J. Z. Bai, N. Y. Wang, X. N. Li, J. M. Link, J. J. Ling, Kam-Biu Luk, R. L. Brown, S. Trentalange, K. V. Tsang, J. B. Jiao, J. L. Xu, C. Pearson, Z. Wang, Y. S. Yeh, Xin Qian, Huo Yan Chen, X. F. Du, H. L. H. Wong, Y. X. Zhang, J. Wong, Zai-Wei Fu, Q. Wu, B. L. Young, B. Roskovec, Y. C. Lin, Lawrence S. Pinsky, Steve Virostek, Y. H. Tam, Y. K. Hor, T. Kwok, X. T. Huang, Guey-Lin Lin, Liangjian Wen, S. H. Zhang, D. M. Xia, Guofu Cao, W. Beriguete, Zhi-zhong Xing, L. S. Littenberg, Yi-Fang Zhao, L. Y. Wang, Chao Zhang, Patrick Huber, Zhi Ning, H. Y. Ngai, R. L. Gill, Jennifer S. Li, R. Carr, Y. B. Nie, X. Tang, Zhenyu Wang, J. Y. Fu, Xiang Li, F. Li, C. Chasman, Haoqi Lu, Jingjing Liang, Jen-Chieh Peng, B. W. Mayes, Lixin Dong, W. Xu, M. H. Ye, Y. B. Liu, J. Wilhelmi, H. J. Jiang, L. Z. Wang, X. P. Ji, J. L. Sun, J. F. Chang, O. D. Tsai, X. L. Luo, Xuan Wang, Jinmei Liu, Jing Zhao, X. Y. Ma, L. H. Ma, D. E. Jaffe, L. H. Whitehead, Q. Xiao, Shengxin Lin, K. M. Heeger, W. R. Edwards, K. Yip, Juan Pedro Ochoa-Ricoux, M. K.P. Lee, D. Oh, Miao He, B. Li, Y. Torun, C. A. Whitten, L. Greenler, R. G. Wang, Y. H. Zhang, Ting-Chi Wang, Liang Zhan, A. Luk, D. A. Dwyer, H. R. Band, H. Liang, H. M. Steiner, Q. X. Zhang, Y. Q. Ma, S. K. Lin, N. Raper, Brent J. Liu, H. K. Tanaka, Xiaohu Guo, X. S. Chen, Hongjun Liu, Zhibing Li, K. Boddy, R. L. Hahn, Qingmin Zhang, S. T. Xiang, G. X. Sun, X. C. Ruan, and D. W. Liu
Subjects: NOνA, Physics, Particle physics, T2K experiment, General Physics and Astronomy, FOS: Physical sciences, Daya Bay Reactor Neutrino Experiment, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), Inverse beta decay, Neutrino, Neutrino oscillation, Electron neutrino, Jiangmen Underground Neutrino Observatory
Abstract: The Daya Bay Reactor Neutrino Experiment has measured a non-zero value for the neutrino mixing angle $\theta_{13}$ with a significance of 5.2 standard deviations. Antineutrinos from six 2.9 GW$_{\rm th}$ reactors were detected in six antineutrino detectors deployed in two near (flux-weighted baseline 470 m and 576 m) and one far (1648 m) underground experimental halls. With a 43,000 ton-GW_{\rm th}-day livetime exposure in 55 days, 10416 (80376) electron antineutrino candidates were detected at the far hall (near halls). The ratio of the observed to expected number of antineutrinos at the far hall is $R=0.940\pm 0.011({\rm stat}) \pm 0.004({\rm syst})$. A rate-only analysis finds $\sin^22\theta_{13}=0.092\pm 0.016({\rm stat})\pm0.005({\rm syst})$ in a three-neutrino framework., Comment: 5 figures. Version to appear in Phys. Rev. Lett
Published: 2012

32. A side-by-side comparison of Daya Bay antineutrino detectors

Author: O. D. Tsai, H. F. Hao, Jinmei Liu, Jing Zhao, X. Y. Ma, A. B. Balantekin, Minfang Yeh, J. Z. Bai, L. Kang, J. Y. Fu, Jiawen Zhang, Q. An, B. Roskovec, Liangquan Ge, D. Wenman, Sa Liu, C. H. Wang, Guisen Li, H. S. Chen, J. F. Chang, Honghan Gong, Z. Y. Deng, Patrick Huber, Q. Xiao, Shengxin Lin, Zai-Wei Fu, W. K. Ngai, Qingming Ma, F. Li, Rupert Leitner, Bing-Lin Young, T. Kwok, Guey-Lin Lin, J. Wilhelmi, Jiaheng Zou, D. E. Jaffe, Y. K. Hor, Vit Vorobel, L. Lebanowski, Y. Y. Ding, Guanghua Gong, Y. B. Hsiung, F. F. Wu, P. Stoler, Chi Lin, W. Beriguete, D. M. Webber, X. L. Ji, J. K. C. Leung, Chao Zhang, Wei Li, Xurong Chen, Xiaoyuan Chen, M. V. Diwan, X. Q. Li, S. D. Fang, G. X. Sun, X. C. Ruan, Y. S. Yeh, K. K. Kwan, X. L. Luo, L. H. Whitehead, S. Blyth, Y. Zhou, Zhiyong Zhang, R. G. Wang, Y. H. Zhang, Liang Zhan, A. Luk, J. J. Cherwinka, X. Tang, K. M. Heeger, K. V. Tsang, S. H. Kettell, L. H. Ma, Xuan Wang, X. C. Chen, A. G. Olshevski, D. W. Liu, Xuejun Liu, Z. B. Li, Kirk T. McDonald, R. W. Hackenburg, W. R. Edwards, Y. A. Gornushkin, T. Wise, Juan Pedro Ochoa-Ricoux, D. A. Dwyer, Z. Wang, Zhiyuan Wang, Zhongyuan Zhou, X. P. Ji, Li Zhou, X. F. Du, H. R. Band, Wei Wang, S. H. Zhang, D. Mohapatra, Maxim Gonchar, Lawrence Pinsky, D. M. Xia, H. M. Steiner, J. L. Sun, H. Liang, Y. Q. Ma, Y. C. Lin, Xiaohu Guo, L. Y. Wang, Yi Chen, Q. He, C. Chasman, R. A. Johnson, Wing-Hon Lai, X. B. Li, Yi Wei, Brent J. Liu, Jen-Chieh Peng, H. Z. Huang, V. Pec, Changgen Yang, P. Hinrichs, S. Trentalange, Richard Rosero, S. J. Patton, S. Hans, W. Q. Gu, Miao He, C. Lu, J. L. Xu, J. B. Xi, W. L. Zhong, Y. H. Sun, L. Greenler, B. B. Shao, J. Wong, Michael Kramer, Y. Nakajima, Min-Xin Guan, B. R. Littlejohn, M. W. Kwok, Haoqi Lu, Yagmur Torun, Qingmin Zhang, R. D. McKeown, T. H. Ho, F. Z. Qi, J. B. Jiao, Y. H. Chang, W. C. Lai, M. K.P. Lee, W. S. He, Chun S. J. Pun, Shaomin Chen, Jun Cao, S. F. Li, M. C. McFarlane, Ching-Yao Lai, Dmitry V. Naumov, E. Draeger, H. L. Zhuang, Christopher G. White, Yufeng Li, Jun Li, J. M. Link, J. P. Cummings, C. A. Lewis, K. Whisnant, L. S. Littenberg, H. K. Tanaka, Zhi Ning, Tian Xue, Y. K. Heng, Zhenyu Zhang, K. Lau, Tao Hu, N. Y. Wang, B. Viren, Kwok Yin Leung, Y. Xu, Q. W. Zhao, R. Carr, Y. B. Nie, B. W. Mayes, X. Huang, L. E. Piilonen, S. Jetter, K. Shih, R. H.M. Tsang, J. J. Ling, Guo-Lin Xu, W. Q. Jiang, Xin Qian, B. Z. Hu, Xiao-yan Li, R. L. Hahn, X. T. Huang, Zhi-zhong Xing, M. Z. Wang, Ming Chung Chu, Q. J. Li, Yaolong Zhang, C. E. Tull, M. Qi, S. R. Ely, C. R. Newsom, M. Bishai, Yaolin Zhao, Jianbin Xu, L. S. Wang, Zeyuan Yu, H. L. H. Wong, Y. X. Zhang, A. Pagac, B. Seilhan, Y. Wang, Pu Huang, S. J. Chen, Q. Wu, F. H. Zhang, H. X. Huang, Jianglai Liu, H. Y. Ngai, R. L. Gill, Igor Nemchenok, Zhijian Zhang, L. Zheng, J. Napolitano, F. P. An, Yue Meng, Kam-Biu Luk, Haifeng Zhao, M. H. Ye, S. K. Lin, R. L. Brown, Liangjian Wen, Guofu Cao, Y. B. Liu, H. J. Jiang, and Lin Yang
Subjects: Physics, Nuclear and High Energy Physics, Particle physics, Physics - Instrumentation and Detectors, 010308 nuclear & particles physics, Daya bay, Detector, FOS: Physical sciences, Daya Bay Reactor Neutrino Experiment, Instrumentation and Detectors (physics.ins-det), 01 natural sciences, 7. Clean energy, High Energy Physics - Experiment, Nuclear physics, High Energy Physics - Experiment (hep-ex), 0103 physical sciences, Calibration, Neutrino, Nuclear Experiment (nucl-ex), 010306 general physics, Neutrino oscillation, Instrumentation, Nuclear Experiment
Abstract: The Daya Bay Reactor Neutrino Experiment is designed to determine precisely the neutrino mixing angle $\theta_{13}$ with a sensitivity better than 0.01 in the parameter sin$^22\theta_{13}$ at the 90% confidence level. To achieve this goal, the collaboration will build eight functionally identical antineutrino detectors. The first two detectors have been constructed, installed and commissioned in Experimental Hall 1, with steady data-taking beginning September 23, 2011. A comparison of the data collected over the subsequent three months indicates that the detectors are functionally identical, and that detector-related systematic uncertainties exceed requirements., Comment: 24 pages, 36 figures
Published: 2012

33. ChemInform Abstract: Synthesis of 2-(1-Arylcarbonyl-1-arylazomethylidene)imidazolidines (IV) by the Reaction of 2-(Arylcarbonylmethylidene)imidazolidines (I) with Diazobenzenes

Author: M.-D. RUAN, W.-Q. FAN, Y.-Z. GU, H.-J. JIANG, and Y.-F. BU
Subjects: General Medicine
Published: 2010

34. ChemInform Abstract: Synthesis of 2-(1-Arylcarbonyl-1-arylazomethylidene)thiazolidines (III) by the Reaction of 2-(Arylcarbonylmethylidene)thiazolidines (II) with Diazobenzenes (I)

Author: Y.‐F. Bu, W.‐Q. Fan, M.‐D. Ruan, H.‐J. Jiang, and Y.‐Z. Gu
Subjects: Thiazolidines, Chemistry, General Medicine, Medicinal chemistry
Published: 2010

35. Povarov Reaction Catalyzed by Anionic Chiral Cobalt(III) Complexes

Author: S.-W Luo, Lei Gong, J Yu, Y Zhou, and H.-J Jiang
Subjects: chemistry, chemistry.chemical_element, Organic chemistry, Povarov reaction, Cobalt, Catalysis
Published: 2015

36. Regional variation in physician practice pattern: an examination of technical and cost efficiency for treating sinusitis

Author: C W, Pai, Y A, Ozcan, and H J, Jiang
Subjects: Insurance Claim Reporting, Primary Health Care, Medicaid, Cost-Benefit Analysis, Virginia, Efficiency, Organizational, Drug Prescriptions, Regional Health Planning, United States, Benchmarking, Catchment Area, Health, Data Interpretation, Statistical, Humans, Clinical Competence, Health Services Research, Practice Patterns, Physicians', Sinusitis, Emergency Service, Hospital, Referral and Consultation
Abstract: An examination of the physician efficiency and resulting cost patterns by region.Virginia Medicaid sinusitis related claims for 1993 were aggregated to physician level (n = 178), and Area Resources File for 1993 was used to identify regions for evaluation.The best practice performance in the usage of five resources (i.e., primary care physician visits, referral services, emergency room visits, prescriptions, laboratory tests) was identified using Data Envelopment Analysis (DEA). Five regions in Virginia were identified according to regional planning to evaluate the variation in efficiency across these regions.Inefficient physicians consumed significantly more resources and were 48% more costly than efficient physicians. Substantial regional variation was found and mainly attributed to the differences in use of prescriptions and laboratory procedures. Urban-rural discrepancy may explain part of the variation.As this study reveals the existence of substantial variation in physician efficiency, actions should be taken to minimize the variation that is more affected by personal and structural factors. For example, information on efficient use of resources and corresponding patient outcomes can be disseminated to the attending physicians. Educational workshops can be conducted to allow sharing of experience between efficient and inefficient physicians. Efforts should also be directed to help inefficient physicians to adhere to practice guidelines.
Published: 2000

37. Identification of steady-state operational modes of the series resonant DC-DC converter based on loosely coupled transformers in below-resonance operation

Author: H.-J. Jiang, Gaston Maggetto, Electrical Engineering and Power Electronics, and Vrije Universiteit Brussel
Subjects: Engineering, Isolation transformer, business.industry, System identification, law.invention, Inductance, law, Control theory, Power electronics, Waveform, Electrical and Electronic Engineering, business, Transformer, Coupling coefficient of resonators, Voltage
Abstract: This paper identifies all the steady-state operational modes of a series-loaded resonant DC-DC power converter (SRC) in below-resonance operation, taking into account the coupling quality of the isolating transformer. A novel operational plane is defined, and ten operational modes are identified in this plane. Borders between neighboring domains of these operational modes are analytically defined. Results are given in normalized form and experimentally verified.
Published: 1999

38. Can deep brain microstimulation be used to study the thalamocortical connection of the tactile sensation?

Author: H.-J. Jiang, Fu-Shan Jaw, and Kuang-Hsuan Chen
Subjects: Neurology, Microstimulation, Tactile sensation, Neurology (clinical), Psychology, Neuroscience, Connection (mathematics)
Published: 2013

39. Studies of human cord blood dendritic cells: evidence for functional immaturity

Author: D W, Hunt, H I, Huppertz, H J, Jiang, and R E, Petty
Subjects: Adult, Male, Aging, Infant, Newborn, Cell Separation, Dendritic Cells, Fetal Blood, Lymphocyte Activation, Recombinant Proteins, Interferon-gamma, HLA Antigens, T-Lymphocyte Subsets, Humans, Interleukin-2, Female, Disease Susceptibility, Lymphocyte Culture Test, Mixed, Mitogens, Immunocompetence, Biomarkers, Cells, Cultured
Abstract: We have isolated low-density, nonadherent, nonphagocytic, HLA-DR+ve cells with the morphology of dendritic cells (DCs) from the cord blood of full-term newborn infants. Relative to adult DCs, cord blood DCs were poor stimulators of the mixed leukocyte reaction when either adult or cord blood mononuclear cells (MNCs) or T lymphocytes were used as responder cells. In contrast, cord blood T cells and MNCs responded normally to allogeneic adult DCs. Cord blood DCs performed poorly as accessory cells for T-lymphocyte mitogenic responses at suboptimal concentrations of concanavalin A (Con A) and phytohemagglutinin A or at optimal concentrations of mitogen and low numbers of DCs. Addition of recombinant interleukin-2 (rIL-2) or recombinant interferon-gamma (rIFN-gamma) to cord blood DC-T-cell cultures containing a suboptimal concentration of Con A potentiated the proliferative response. In contrast, rIL-2 and rIFN-gamma exerted little effect on the proliferative response of adult T cells cultured with Con A and DCs. Flow cytometric studies showed that levels of intercellular adhesion molecule-1 (ICAM-1; CD54) and major histocompatibility complex (MHC) class I HLA-ABC and class II HLA-DR antigens on cord blood DCs were significantly lower than those on adult blood DCs. These findings suggest that the relative inefficiency of cord blood DCs in the activation of T cells may be related to their low cell surface expression of MHC and cell adhesion molecules. The demonstrated impairment of cord blood DC function could be of importance in understanding the immunologic relationship between the fetus and mother and could contribute to the susceptibility of newborns to infection.
Published: 1994

40. [Effect of arteether on Schistosoma japonicum]

Author: S H, Xiao, J W, Yin, J Y, Mei, J Q, You, Y, Li, and H J, Jiang
Subjects: Mice, Schistosomicides, Therapeutic Equivalency, Histocytochemistry, Schistosomiasis japonica, Animals, Female, Artemether, Sesquiterpenes, Artemisinins, Schistosoma japonicum
Abstract: NIH mice infected with Schistosoma japonicum cercariae for 3, 7, 14, 21 or 35 d were treated ig either with arteether or artemether at the daily dose of 100-200 mg.kg-1 for 2 d, the efficacy produced by both drugs was similar. The d 7 schistosomules and d 35 adult worms were more susceptible to arteether or artemether with respective worm reduction rates of 77.5%-87.2% and 51.7%-61.3%. Histological and histochemical studies showed that d 7 and d 35 schistosomes, harbored in mice treated with arteether 300 mg.kg-1.d-1 for 2 d appeared in cloudy swelling and vesiculation in the tegument, distension of intestine, apparent decrease or even disappearance of glycogen and inhibition of alkaline phosphatase activity in the tegument and parenchymal tissues, as well as formation of dead worm granuloma.
Published: 1992

41. [Comparative studies on histological and histochemical alterations of Schistosoma japonicum induced by arteether and artemether]

Author: J W, Yin, Y Q, Yang, S H, Xiao, Y, Li, and H J, Jiang
Subjects: Male, Histocytochemistry, Alkaline Phosphatase, Artemisinins, Schistosoma japonicum, Mice, Schistosomicides, Liver, Schistosomiasis japonica, Animals, Female, Artemether, Sesquiterpenes, Glycogen
Abstract: Mice infected with 100 and 50 Schistosoma japonicum cercariae for 7 and 35 d respectively were treated with im artemether 100 mg.kg-1.d-1 or arteether 100 and 300 mg.kg-1.d-1 for 2 d. The mice were killed at different intervals within 28 d after medication and the livers were sectioned for histological and histochemical observations. The results showed that both artemether and arteether caused degeneration in the tegument, intestine and genital gland of the hepatic-shifted worms. The glycogen content and alkaline phosphatase (AKP) activity of schistosomula and adult worms decreased 7 d after treatment, especially remarkable in arteether 300 mg.kg-1.d-1 group.
Published: 1991

42. Effect of Konjac food on blood glucose level in patients with diabetes

Author: C Y, Huang, M Y, Zhang, S S, Peng, J R, Hong, X, Wang, H J, Jiang, F L, Zhang, Y X, Bai, J Z, Liang, and Y R, Yu
Subjects: Adult, Blood Glucose, Dietary Fiber, Mannans, Diabetes Mellitus, Type 2, Polysaccharides, Humans, Middle Aged, Aged
Abstract: Seventy-two type II diabetic subjects were given Konjac food for 65 days. The data analyzed by multiple F test indicate that the fasting blood glucose (FBG) and the 2-h postprandial blood glucose (PBG) on the 30th and the 65th days after the food was ingested were significantly reduced (P = 0.001, P less than 0.001, respectively), as was the glycosylated hemoglobin level at the end of the trial (P less than 0.05). The final FBG and PBG of the subjects with initial FBG-O greater than 200 mg% decreased on the average by 51.8 and 84.6 mg%, respectively; those with FBG-O 150-200 mg% decreased by 24.1 and 68.7 mg%; and those with FBG-O less than 150 mg% decreased by 4.8 and 21.4 mg%. No significant changes in blood lipid indexes were observed, except that the triglyceride values of subjects with hypertriglyceridemia (greater than 200 mg%) significantly decreased by 118.7 mg%. It was concluded that Konjac food is very useful in the prevention and treatment of hyperglycemia.
Published: 1990

43. [Dot-ELISA in the diagnosis of neurocysticercosis]

Author: H J, Jiang, L X, Yang, S H, Pang, T, Sun, S P, Xie, J M, Meng, G Z, Wen, and G Z, Wang
Subjects: Brain Diseases, Cysticercosis, Antibodies, Helminth, Animals, Humans, Enzyme-Linked Immunosorbent Assay, Cysticercus
Abstract: The dot-enzyme-linked immunosorbent assay was used to detect Cysticercus cellulosae antibodies in sera of patients with neurocysticercosis. Among 108 confirmed cases of neurocysticercosis 81.6-96.1% showed positive reactions. Two out of 54 normal control sera reacted at a serum dilution of 1:20, but none at a 1:40 (range 40-640). No cross reactions were observed with sera from cases of paragonimiasis and clonorchiasis, but it did occur to some extent with sera from cases of echinococcosis and cerebrovascular diseases. The results indicated that the dot-ELISA was sensitive, specific and economic for the diagnosis of neurocysticercosis.
Published: 1990

44. Research on the Range Noise in Three-dimensional (3-D) Images from Laser Radar.

Author: H-J. JIANG, J-C. LAI, C-Y. WANG, and Z-H. LI
Subjects: *THREE-dimensional imaging, *OPTICAL radar, *ELECTRONIC noise, *TIME-of-flight measurements, *NUMERICAL analysis, *INFORMATION asymmetry, *ERROR correction (Information theory)
Abstract: Based on the principle of "time-of-flight radar", a numerical model is developed to investigate the noise properties in the range images obtained by the laser radar, which can easily take the influences of system and environmental parameters into account. After a controlled experiment to verify the correctness of the model, numerical calculations are executed to analyse the distribution of range noise in three-dimensional (3-D) images obtained by the laser imaging radar. The results show that with the decreasing of signal to noise ratio (SNR), the distribution of range noise obviously deviates from normal distribution and which is an asymmetrical distribution with a rapid rising edge and relatively slower falling edge. Once the SNR is larger than 7.2, the distribution of range noise approximately obeys the normal distribution and the laser radar works in a better condition. [ABSTRACT FROM AUTHOR]
Published: 2013

45. Effect of Practice Guideline Dissemination Strategies on Physician Behavior and Patient Outcomes

Author: C Agin, Robert S. Lagasse, K. Ciccone, D. Strogatz, M Sugarman, M. Jakubowski, H J Jiang, E.M. Kitain, and G Saff
Subjects: medicine.medical_specialty, Anesthesiology and Pain Medicine, business.industry, Family medicine, Medicine, Guideline, business
Published: 1998

46. Genesis and catalysis of metal particles in zeolites

Author: M. S. Tzou, Wolfgang M.H. Sachtler, and H. J. Jiang
Subjects: Metal, Chemical engineering, Chemistry, visual_art, Inorganic chemistry, visual_art.visual_art_medium, Physical and Theoretical Chemistry, Catalysis
Published: 1987

47. Genesis and characterization of transition metal clusters in Y zeolites

Author: H. J. Jiang, Wolfgang M.H. Sachtler, and M. S. Tzou
Subjects: Ion exchange, Chemistry, Inorganic chemistry, Nucleation, chemistry.chemical_element, General Chemistry, Condensed Matter Physics, Ion, law.invention, chemistry.chemical_compound, Transition metal, law, Physics::Atomic and Molecular Clusters, Sodalite, General Materials Science, Calcination, Dispersion (chemistry), Platinum
Abstract: Size and location of Pt particles in Y zeolites largely depend on the conditions of calcination following ion exchange. Besides destroying NH 3 ligands, calcination promotes migration of Pt ions from supercages to sodalite cages. The calcination temperature thus determines whether all, some, or none of the Pt ions remain in the supercages. In the first case, subsequent reduction results in small Pt clusters in supercages. Large Pt particles are, however, formed at the external surface, if all Pt ions were located in sodalite cages. If Pt ions are present in comparable quantities in both types of cages, those located in the supercages are reduced at low temperature and act as nucleation sites for the Pt atoms leaving the sodalite cages at higher temperature. By filling sodalite cages with auxiliary ions of other transition elements, the migration of Pt ions such cages can be suppressed; and a higher platinum dispersion is obtained after reduction.
Published: 1988

48. Hydrogen release from Ni/faujasite catalysts

Author: H. J. Jiang, W. H. M. Sachtler, and M. S. Tzou
Subjects: Hydrogen, Inorganic chemistry, chemistry.chemical_element, General Chemistry, Faujasite, engineering.material, Heterogeneous catalysis, Catalysis, Nickel, Adsorption, chemistry, Desorption, engineering, Zeolite
Abstract: Mono- and multimetallic Ni/NaY samples have been studied by static and dynamic techniques. The reducibility of Ni is dramatically enhanced by Pt clusters in supercages and by Mn ions blocking small zeolite cages. No H2 is trapped by NaY, but for Ni/NaY, NiPt/NaY, or NiPtMn/NaY more H2 is released in temperature programmed “desorption” (TPD) than can be adsorbed at 25 °C. Two phenomena are responsible for the apparent discrepancy between ad- and desorption: (1) Ni inside small cages can ad- and desorb hydrogen only when cage windows are widened by thermal vibration to permit passage of H2. (2) Above 500 °C the original reduction process Ni2+ + H2 = Ni0 + 2H+ is reversed, i.e. Ni atoms are oxidized by hydroxyl groups. This is confirmed by the H2 consumption in subsequent reduction. The high-temperature TPD feature can be used to estimate the amount of reduced Ni that is located in small cages.
Published: 1988

49. ChemInform Abstract: Genesis and Characterization of Transition Metal Clusters in Y Zeolites

Author: Wolfgang M.H. Sachtler, H. J. Jiang, and M. S. Tzou
Subjects: Ion exchange, Nucleation, chemistry.chemical_element, General Medicine, Ion, law.invention, chemistry.chemical_compound, Crystallography, chemistry, Transition metal, law, Physics::Atomic and Molecular Clusters, Sodalite, Calcination, Platinum, Dispersion (chemistry)
Abstract: Size and location of Pt particles in Y zeolites largely depend on the conditions of calcination following ion exchange. Besides destroying NH 3 ligands, calcination promotes migration of Pt ions from supercages to sodalite cages. The calcination temperature thus determines whether all, some, or none of the Pt ions remain in the supercages. In the first case, subsequent reduction results in small Pt clusters in supercages. Large Pt particles are, however, formed at the external surface, if all Pt ions were located in sodalite cages. If Pt ions are present in comparable quantities in both types of cages, those located in the supercages are reduced at low temperature and act as nucleation sites for the Pt atoms leaving the sodalite cages at higher temperature. By filling sodalite cages with auxiliary ions of other transition elements, the migration of Pt ions such cages can be suppressed; and a higher platinum dispersion is obtained after reduction.
Published: 1988

50. [Studies on immuno-diagnosis for Cysticercosis cellulosae. 1. Electrophoretic analysis of protein and antigenic preparation of Cysticercus cellulosae]

Author: H J, Jiang, Y Q, An, L X, Yan, J H, Liu, T, Su, Z X, Xiao, and S P, Xie
Subjects: Taenia, Cysticercosis, Antigens, Helminth, Animals, Humans, Proteins, Electrophoresis, Polyacrylamide Gel, Cysticercus
Published: 1987

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