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Achasov, M. N.; Albayrak, O.; Albrecht, M.; Ferroli, R. Baldini; Bian, J. M.; Bianchi, F.; Boyko, I.; Calcaterra, A.; Chen, X. R.; Dai, J. P.; Deng, Z. Y.; Denig, A.; Dong, L. Y.; Dong, M. Y.; Eren, E. E.; Fang, X.; Fang, Y.; Felici, G.; Fritsch, M.; Fu, C. D.; Goetzen, K.; Gong, W. X.; Gradl, W.; Greco, M.; Gu, Y. T.; Han, S.; He, X. Q.; Hu, H. M.; Hu, Y.; Hussain, T.; Ji, X. B.; Ji, X. L.; Jiao, Z.; Jin, S.; Kang, X. L.; Kang, X. S.; Kavatsyuk, M.; Kliemt, R.; Kupsc, A.; Lange, J. S.; Li, C.; Li, Cheng; Li, D. M.; Li, F. Y.; Li, P. R.; Li, X. L.; Li, X. M.; Liao, G. R.; Liu, F. H.; Liu, J. P.; Liu, Y. B.; Liu, Zhiqing; Lou, X. C.; Lu, Y. P.; Luo, T.; Luo, X. L.; Ma, L. L.; Ma, T.; Ma, X. Y.; Maas, F. E.; Mao, Z. P.; Mitchell, R. E.; Muchnoi, N. Yu; Nisar, S.; Patteri, P.; Pelizaeus, M.; Prasad, V.; Qin, L. Q.; Qin, X. S.; Qin, Z. H.; Ripka, M.; Santoro, V.; Shao, M.; Shen, P. X.; Sun, S. S.; Sun, Z. T.; Tang, X.; Tapan, I.; Ullrich, M.; Wang, M.; Wang, P.; Wang, W.; Wang, Y. D.; Wang, Y. Q.; Wang, Z. G.; Wang, Z. H.; Xia, Y.; Xu, G. F.; Xu, Q. J.; Yan, W. B.; Yuan, W. L.; Zallo, A.; Zhang, C.; Zhang, H. Y.; Zhang, J. J.; Zhang, J. Y.; Zhang, Y. T.; Zhang, Z. P.; Zhao, Lei; Zotti, L.
Physical review. D, Particles, fields, gravitation, and cosmology, 10/2015, Volume: 92, Issue: 7Journal Article
Here, in an analysis of a 2.92 fb–1 data sample taken at 3.773 GeV with the BESIII detector operated at the BEPCII collider, we measure the absolute decay branching fractions to be B(D0 → K–e+νe) = (3.505 ± 0.014 ± 0.033)% and B(D0 → π–e+νe) = (0.295 ± 0.004 ± 0.003)%. From a study of the differential decay rates we obtain the products of hadronic form factor and the magnitude of the CKM matrix element $f$ $^{K}_{+}$(0)|Vcs| = 0.7172 ± 0.0025 ± 0.0035 and $f$ $^{π}_{+}$(0)|Vcd| = 0.1435 ± 0.0018 ± 0.0009.
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