Year: 2015
Type: article
Abstract: In an analysis of a $2.92\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$ data sample taken at 3.773 GeV with the BESIII detector operated at the BEPCII collider, we measure the absolute decay branching fractions $\mathcal{B}({D}^{0}\ensuremath{\rightarrow}{K}^{\ensuremath{-}}{e}^{+}{\ensuremath{\nu}}_{e})=(3.505\ifmmode\pm\else\textpm\fi{}0.014\ifmmode\pm\else\textpm\fi{}0.033)%$ and $\mathcal{B}({D}^{0}\ensuremath{\rightarrow}{\ensuremath{\pi}}^{\ensuremath{-}}{e}^{+}{\ensuremath{\nu}}_{e})=(0.295\ifmmode\pm\else\textpm\fi{}0.004\ifmmode\pm\else\textpm\fi{}0.003)%$. From a study of the differential decay rates we obtain the products of hadronic form factor and the magnitude of the Cabibbo-Kobayashi- Maskawa (CKM) matrix element ${f}_{+}^{K}(0)|{V}_{cs}|=0.7172\ifmmode\pm\else\textpm\fi{}0.0025\ifmmode\pm\else\textpm\fi{}0.0035$ and ${f}_{+}^{\ensuremath{\pi}}(0)|{V}_{cd}|=0.1435\ifmmode\pm\else\textpm\fi{}\phantom{\rule{0ex}{0ex}}0.0018\ifmmode\pm\else\textpm\fi{}0.0009$. Combining these products with the values of $|{V}_{cs(d)}|$ from the SM constraint fit, we extract the hadronic form factors ${f}_{+}^{K}(0)=0.7368\ifmmode\pm\else\textpm\fi{}0.0026\ifmmode\pm\else\textpm\fi{}0.0036$ and ${f}_{+}^{\ensuremath{\pi}}(0)=0.6372\ifmmode\pm\else\textpm\fi{}0.0080\ifmmode\pm\else\textpm\fi{}\phantom{\rule{0ex}{0ex}}0.0044$, and their ratio ${f}_{+}^{\ensuremath{\pi}}(0)/{f}_{+}^{K}(0)=0.8649\ifmmode\pm\else\textpm\fi{}0.0112\ifmmode\pm\else\textpm\fi{}0.0073$. These form factors and their ratio are used to test unquenched lattice QCD calculations of the form factors and a light cone sum rule (LCSR) calculation of their ratio. The measured value of ${f}_{+}^{K(\ensuremath{\pi})}(0)|{V}_{cs(d)}|$ and the lattice QCD value for ${f}_{+}^{K(\ensuremath{\pi})}(0)$ are used to extract values of the CKM matrix elements of $|{V}_{cs}|=0.9601\ifmmode\pm\else\textpm\fi{}0.0033\ifmmode\pm\else\textpm\fi{}0.0047\ifmmode\pm\else\textpm\fi{}0.0239$ and $|{V}_{cd}|=0.2155\ifmmode\pm\else\textpm\fi{}0.0027\ifmmode\pm\else\textpm\fi{}0.0014\ifmmode\pm\else\textpm\fi{}0.0094$, where the third errors are due to the uncertainties in lattice QCD calculations of the form factors. Using the LCSR value for ${f}_{+}^{\ensuremath{\pi}}(0)/{f}_{+}^{K}(0)$, we determine the ratio $|{V}_{cd}|/|{V}_{cs}|=0.238\ifmmode\pm\else\textpm\fi{}0.004\ifmmode\pm\else\textpm\fi{}0.002\ifmmode\pm\else\textpm\fi{}0.011$, where the third error is from the uncertainty in the LCSR normalization. In addition, we measure form factor parameters for three different theoretical models that describe the weak hadronic charged currents for these two semileptonic decays. All of these measurements are the most precise to date.
Authors: M. Ablikim, M. N. Achasov, X. C. Ai, O. Albayrak, M. Albrecht, D. J. Ambrose, A. Amoroso, F. F. An, Q. An, J. Z. Bai, R. Baldini Ferroli, Y. Ban, D. W. Bennett, J. V. Bennett, M. Bertani, D. Bettoni, J. M. Bian, F. Bianchi, E. Boger, I. Boyko, R. A. Briere, H. Cai, X. Cai, O. Cakir, A. Calcaterra, G. F. Cao, S. A. Cetin, J. F. Chang, G. Chelkov, G. Chen, H. S. Chen, H. Y. Chen, J. C. Chen, M. L. Chen, S. J. Chen, X. Chen, X. R. Chen, Y. B. Chen, H. P. Cheng, X. K. Chu, G. Cibinetto, H. L. Dai, J. P. Dai, A. Dbeyssi, D. Dedovich, Z. Y. Deng, A. Denig, I. Denysenko, M. Destefanis, F. De Mori, Y. Ding, C. Dong, J. Dong, L. Y. Dong, M. Y. Dong, S. X. Du, P. F. Duan, E. E. Eren, J. Z. Fan, J. Fang, S. S. Fang, X. Fang, Y. Fang, L. Fava, F. Feldbauer, G. Felici, C. Q. Feng, E. Fioravanti, M. Fritsch, C. D. Fu, Q. Gao, X. Y. Gao, Y. Gao, Z. Gao, I. Garzia, K. Goetzen, W. X. Gong, W. Gradl, M. Greco, M. H. Gu, Y. T. Gu, Y. H. Guan, A. Q. Guo, L. B. Guo, Y. Guo, Y. P. Guo, Z. Haddadi, A. Hafner, S. Han, X. Q. Hao, F. A. Harris, K. L. He, X. Q. He, T. Held, Y. K. Heng, Z. L. Hou, C. Hu, H. M. Hu, J. F. Hu, T. Hu, Y. Hu, G. M. Huang, G. S. Huang, J. S. Huang, X. T. Huang, Y. Huang, T. Hussain, Q. Ji, Q. P. Ji, X. B. Ji, X. L. Ji, L. L. Jiang, L. W. Jiang, X. S. Jiang, X. Y. Jiang, J. B. Jiao, Z. Jiao, D. P. Jin, S. Jin, T. Johansson, A. Julin, N. Kalantar-Nayestanaki, X. L. Kang, X. S. Kang, M. Kavatsyuk, B. C. Ke, P. Kiese, R. Kliemt, B. Kloss, O. B. Kolcu, B. Kopf, M. Kornicer, W. Kuehn, A. Kupsc, J. S. Lange, M. Lara, P. Larin, C. Leng, C. Li, Cheng Li, D. M. Li, F. Li, F. Y. Li, G. Li, H. B. Li, J. C. Li, Jin Li, K. Li, K. Li, Lei Li, P. R. Li, T. Li, W. D. Li, W. G. Li, X. L. Li, X. M. Li, X. N. Li, X. Q. Li, Z. B. Li, H. Liang, Y. F. Liang, Y. T. Liang, G. R. Liao, D. X. Lin, B. J. Liu, C. L. Liu, C. X. Liu, F. H. Liu, Fang Liu, Feng Liu, H. B. Liu, H. H. Liu, H. H. Liu, H. M. Liu, J. Liu, J. B. Liu, J. P. Liu, J. Y. Liu, K. Liu, K. Y. Liu, L. D. Liu, P. L. Liu, Q. Liu, S. B. Liu, X. Liu, Y. B. Liu, Z. A. Liu, Zhiqing Liu, H. Loehner, X. C. Lou, H. J. Lu, J. G. Lu, Y. Lu, Y. P. Lu, C. L. Luo, M. X. Luo, T. Luo, X. L. Luo, X. R. Lyu, F. C. Ma, H. L. Ma, L. L. Ma, Q. M. Ma, T. Ma, X. N. Ma, X. Y. Ma, F. E. Maas, M. Maggiora, Y. J. Mao, Z. P. Mao, S. Marcello, J. G. Messchendorp, J. Min, R. E. Mitchell, X. H. Mo, Y. J. Mo, C. Morales Morales, K. Moriya, N. Yu. Muchnoi, H. Muramatsu, Y. Nefedov, F. Nerling, I. B. Nikolaev, Z. Ning, S. Nisar, S. L. Niu, X. Y. Niu, S. L. Olsen, Q. Ouyang, S. Pacetti, P. Patteri, M. Pelizaeus, H. P. Peng, K. Peters, J. Pettersson, J. L. Ping, R. G. Ping, R. Poling, V. Prasad, M. Qi, S. Qian, C. F. Qiao, L. Q. Qin, N. Qin, X. S. Qin, Z. H. Qin, J. F. Qiu, K. H. Rashid, C. F. Redmer, M. Ripka, G. Rong, Ch. Rosner, X. D. Ruan, V. Santoro, A. Sarantsev, M. Savrié, K. Schoenning, S. Schumann, W. Shan, M. Shao, C. P. Shen, P. X. Shen, X. Y. Shen, H. Y. Sheng, W. M. Song, X. Y. Song, S. Sosio, S. Spataro, G. X. Sun, J. F. Sun, S. S. Sun, Y. J. Sun, Y. Z. Sun, Z. J. Sun, Z. T. Sun, C. J. Tang, X. Tang, I. Tapan, E. H. Thorndike, M. Tiemens, M. Ullrich, I. Uman, G. S. Varner, B. Wang, D. Wang, D. Y. Wang, K. Wang, L. L. Wang, L. S. Wang, M. Wang, P. Wang, P. L. Wang, S. G. Wang, W. Wang, X. F. Wang, Y. D. Wang, Y. F. Wang, Y. Q. Wang, Z. Wang, Z. G. Wang, Z. H. Wang, Z. Y. Wang, T. Weber, D. H. Wei, J. B. Wei, P. Weidenkaff, S. P. Wen, U. Wiedner, M. Wolke, L. H. Wu, Z. Wu, L. G. Xia, Y. Xia, D. Xiao, H. Xiao, Z. J. Xiao, Y. G. Xie, Q. L. Xiu, G. F. Xu, L. Xu, Q. J. Xu, X. P. Xu, L. Yan, W. B. Yan, W. C. Yan, Y. H. Yan, H. J. Yang, H. X. Yang, L. Yang, Y. Yang, Y. X. Yang, M. Ye, M. H. Ye, J. H. Yin, B. X. Yu, C. X. Yu, J. S. Yu, C. Z. Yuan, W. L. Yuan, Y. Yuan, A. Yuncu, A. A. Zafar, A. Zallo, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. Zhang, C. C. Zhang, D. H. Zhang, H. H. Zhang, H. Y. Zhang, J. J. Zhang, J. L. Zhang, J. Q. Zhang, J. W. Zhang, J. Y. Zhang, J. Z. Zhang, K. Zhang, L. Zhang, X. Y. Zhang, Y. Zhang, Y. N. Zhang, Y. H. Zhang, Y. T. Zhang, Yu Zhang, Z. H. Zhang, Z. P. Zhang, Z. Y. Zhang, G. Zhao, J. W. Zhao, J. Y. Zhao, J. Z. Zhao, Lei Zhao, Ling Zhao, M. G. Zhao, Q. Zhao, Q. W. Zhao, S. J. Zhao, T. C. Zhao, Y. B. Zhao, Z. G. Zhao, A. Zhemchugov, B. Zheng, J. P. Zheng, W. J. Zheng, Y. H. Zheng, B. Zhong, L. Zhou, X. Zhou, X. K. Zhou, X. R. Zhou, X. Y. Zhou, K. Zhu, K. J. Zhu, S. Zhu, S. H. Zhu, X. L. Zhu, Y. C. Zhu, Y. S. Zhu, Z. A. Zhu, J. Zhuang, L. Zotti, B. S. Zou, J. H. Zou
Institutions: Institute of High Energy Physics, Siberian Branch of the Russian Academy of Sciences, Budker Institute of Nuclear Physics, Carnegie Mellon University, Ruhr University Bochum, University of Rochester, Istituto Nazionale di Fisica Nucleare, Sezione di Torino, University of Turin, University of Science and Technology of China, Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di Frascati, Peking University, Indiana University Bloomington, Indiana University, Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara, University of Minnesota, Joint Institute for Nuclear Research, Wuhan University, Istanbul Aydın University, Doğuş University, Beihang University, Nanjing University, Lanzhou University, Huangshan University, Shanghai Jiao Tong University, Helmholtz Institute Mainz, Johannes Gutenberg University Mainz, Liaoning University, Nankai University, Zhengzhou University, Tsinghua University, Università degli Studi del Piemonte Orientale “Amedeo Avogadro”, GSI Helmholtz Centre for Heavy Ion Research, Guangxi University, Nanjing Normal University, University of Groningen, Henan Normal University, University of Hawaiʻi at Mānoa, University of Hawaii System, University of Science and Technology Liaoning, Central China Normal University, Shandong University, University of the Punjab, Uppsala University, Justus-Liebig-Universität Gießen, Seoul National University, Hangzhou Normal University, Beijing Institute of Petrochemical Technology, Chinese Academy of Sciences, University of Chinese Academy of Sciences, Sun Yat-sen University, Sichuan University, Guangxi Normal University, Shanxi University, Henan University of Science and Technology, Zhejiang University, COMSATS University Islamabad, Lahore Campus, Istituto Nazionale di Fisica Nucleare, University of Perugia, Istituto Nazionale di Fisica Nucleare, Sezione di Perugia, University of Ferrara, Bursa Uludağ Üni̇versi̇tesi̇, Hunan University, University of South China, Soochow University, China Center of Advanced Science and Technology
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: bronze
Funders: National Science Foundation, U.S. Department of Energy, Strong, Deutsche Forschungsgemeinschaft, Rijksuniversiteit Groningen, National Natural Science Foundation of China, Russian Foundation for Basic Research, Chinese Academy of Sciences, Vetenskapsrådet, Ministerio de Fomento, Institute for Basic Science, Istituto Nazionale di Fisica Nucleare, Shanghai Key Laboratory for Particle Physics and Cosmology, Institute of High Energy Physics
Awards: G1114156505, G1272654690, BEPCII/BESIII重粲结构精细扫描和QCD实验研究, G1612394202, G1784194674, G222768804, G3089166445, 粲偶素与类粲偶素的实验研究, G40748299, THEORETICAL AND EXPERIMENTAL HIGH ENERGY PHYSICS, RESEARCH IN HIGH ENERGY PHYSICS, G4695222216, G4919363105, G5120299940, UNDERSTANDING QCD IN THE LIGHT MESON SECTOR (WITH EMPHASIS ON MAPPING GLUONIC EXCITATIONS)..., RESEARCH IN HIGH ENERGY PHYSICS, G5402569047, EXPERIMENTAL AND THEORETICAL HIGH ENERGY PHYSICS, G5907409172, 北京谱仪-III DD-bar对产生阈上共振态非-DD-bar衰变的实验研究, RESEARCH IN EXPERIMENTAL AND THEORETICAL HIGH ENERGY PHYSICS, G7113737004, G7451531393, G7663785162, G7924189137, G8311218318, G8332380056, G868043634, UNDERSTANDING QCD IN THE LIGHT MESON SECTOR (WITH EXPHASIS ON MAPPING GLUONIC EXCITATIONS) USING PION AND PHOTON PROBES
OpenAlex ID: W1901822018