Direct measurement of the branching fraction for the decay of D+ → K̄0e+νe and determination of Γ(D0 → K-e+νe)/ Γ(D+ → K̄0e+νe

M. Ablikim; J. Z. Bai; Y. Ban; J. G. Bian; X. Cai; J. F. Chang; H. F. Chen; H. S. Chen; H. X. Chen; J. C. Chen; Jin Chen; Jun Chen; M. L. Chen; Y. B. Chen; S. P. Chi; Y. P. Chu; X. Z. Cui; H. L. Dai; Y. S. Dai; Z. Y. Deng; L. Y. Dong; S. X. Du; Z. Z. Du; J. Fang; S. S. Fang; C. D. Fu; H. Y. Fu; C. S. Gao; Y. N. Gao; M. Y. Gong; W. X. Gong; S. D. Gu; Y. N. Guo; Y. Q. Guo; K. L. He; M. He; X. He; Y. K. Heng; H. M. Hu; T. Hu; L. Huang; X. P. Huang; X. B. Ji; Q. Y. Jia; C. H. Jiang; X. S. Jiang; D. P. Jin; S. Jin; Y. Jin; Y. F. Lai; F. Li; G. Li; H. H. Li; J. Li; J. C. Li; Q. J. Li; R. B. Li; R. Y. Li; S. M. Li; W. G. Li; X. L. Li; X. Q. Li; X. S. Li; Y. F. Liang; H. B. Liao; C. X. Liu; F. Liu; Fang Liu; H. M. Liu; J. B. Liu; J. P. Liu; R. G. Liu; Z. A. Liu; Z. X. Liu; F. Lu; G. R. Lu; J. G. Lu; C. L. Luo; X. L. Luo; F. C. Ma; J. M. Ma; L. L. Ma; Q. M. Ma; X. Y. Ma; Z. P. Mao; X. H. Mo; J. Nie; Z. D. Nie; H. P. Peng; N. D. Qi; C. D. Qian; H. Qin; J. F. Qiu; Z. Y. Ren; G. Rong; L. Y. Shan; L. Shang; D. L. Shen; X. Y. Shen; H. Y. Sheng; F. Shi; X. Shi; H. S. Sun; S. S. Sun; Y. Z. Sun; Z. J. Sun; X. Tang; N. Tao; Y. R. Tian; G. L. Tong; D. Y. Wang; J. Z. Wang; K. Wang; L. Wang; L. S. Wang; M. Wang; P. Wang; P. L. Wang; S. Z. Wang; W. F. Wang; Y. F. Wang; Zhe Wang; Z. Wang; Zheng Wang; Z. Y. Wang; C. L. Wei; D. H. Wei; N. Wu; Y. M. Wu; X. M. Xia; X. X. Xie; B. Xin; G. F. Xu; H. Xu; Y. Xu; S. T. Xue; M. L. Yan; F. Yang; H. X. Yang; J. Yang; S. D. Yang; Y. X. Yang; M. Ye; M. H. Ye; Y. X. Ye; L. H. Yi; Z. Y. Yi; C. S. Yu; G. W. Yu; C. Z. Yuan; J. M. Yuan; Y. Yuan; Q. Yue; S. L. Zang; Yu Zeng; Y. Zeng; B. X. Zhang; B. Y. Zhang; C. C. Zhang; D. H. Zhang; H. Y. Zhang; J. Zhang; J. Y. Zhang; J. W. Zhang; L. S. Zhang; Q. J. Zhang; S. Q. Zhang; X. M. Zhang; X. Y. Zhang; Y. J. Zhang; Y. Y. Zhang; Yiyun Zhang; Z. P. Zhang; Z. Q. Zhang; D. X. Zhao; J. B. Zhao; J. W. Zhao; M. G. Zhao; P. P. Zhao; W. R. Zhao; X. J. Zhao; Y. B. Zhao; H. Q. Zheng; J. P. Zheng; L. S. Zheng; Z. P. Zheng; X. C. Zhong; B. Q. Zhou; G. M. Zhou; L. Zhou; N. F. Zhou; K. J. Zhu; Q. M. Zhu; Y. C. Zhu; Y. S. Zhu; Yingchun Zhu; Z. A. Zhu; B. A. Zhuang; B. S. Zou

doi:10.1016/j.physletb.2004.12.040

Direct measurement of the branching fraction for the decay of D⁺ → K̄⁰e⁺ν_e and determination of Γ(D⁰ → K^-e⁺ν_e)/ Γ(D⁺ → K̄⁰e⁺ν_e

M. Ablikim^*
, J. Z. Bai
, Y. Ban
, J. G. Bian
, X. Cai
, J. F. Chang
, H. F. Chen
, H. S. Chen
, H. X. Chen
, J. C. Chen
, Jin Chen
, Jun Chen
, M. L. Chen
, Y. B. Chen
, S. P. Chi
, Y. P. Chu
, X. Z. Cui
, H. L. Dai
, Y. S. Dai
, Z. Y. Deng

L. Y. Dong, S. X. Du, Z. Z. Du, J. Fang, S. S. Fang, C. D. Fu, H. Y. Fu, C. S. Gao, Y. N. Gao, M. Y. Gong, W. X. Gong, S. D. Gu, Y. N. Guo, Y. Q. Guo, K. L. He, M. He, X. He, Y. K. Heng, H. M. Hu, T. Hu, L. Huang, X. P. Huang, X. B. Ji, Q. Y. Jia, C. H. Jiang, X. S. Jiang, D. P. Jin, S. Jin, Y. Jin, Y. F. Lai, F. Li, G. Li, H. H. Li, J. Li, J. C. Li, Q. J. Li, R. B. Li, R. Y. Li, S. M. Li, W. G. Li, X. L. Li, X. Q. Li, X. S. Li, Y. F. Liang, H. B. Liao, C. X. Liu, F. Liu, Fang Liu, H. M. Liu, J. B. Liu, J. P. Liu, R. G. Liu, Z. A. Liu, Z. X. Liu, F. Lu, G. R. Lu, J. G. Lu, C. L. Luo, X. L. Luo, F. C. Ma, J. M. Ma, L. L. Ma, Q. M. Ma, X. Y. Ma, Z. P. Mao, X. H. Mo, J. Nie, Z. D. Nie, H. P. Peng, N. D. Qi, C. D. Qian, H. Qin, J. F. Qiu, Z. Y. Ren, G. Rong, L. Y. Shan, L. Shang, D. L. Shen, X. Y. Shen, H. Y. Sheng, F. Shi, X. Shi, H. S. Sun, S. S. Sun, Y. Z. Sun, Z. J. Sun, X. Tang, N. Tao, Y. R. Tian, G. L. Tong, D. Y. Wang, J. Z. Wang, K. Wang, L. Wang, L. S. Wang, M. Wang, P. Wang, P. L. Wang, S. Z. Wang, W. F. Wang, Y. F. Wang, Zhe Wang, Z. Wang, Zheng Wang, Z. Y. Wang, C. L. Wei, D. H. Wei, N. Wu, Y. M. Wu, X. M. Xia, X. X. Xie, B. Xin, G. F. Xu, H. Xu, Y. Xu, S. T. Xue, M. L. Yan, F. Yang, H. X. Yang, J. Yang, S. D. Yang, Y. X. Yang, M. Ye, M. H. Ye, Y. X. Ye, L. H. Yi, Z. Y. Yi, C. S. Yu, G. W. Yu, C. Z. Yuan, J. M. Yuan, Y. Yuan, Q. Yue, S. L. Zang, Yu Zeng, Y. Zeng, B. X. Zhang, B. Y. Zhang, C. C. Zhang, D. H. Zhang, H. Y. Zhang, J. Zhang, J. Y. Zhang, J. W. Zhang, L. S. Zhang, Q. J. Zhang, S. Q. Zhang, X. M. Zhang, X. Y. Zhang, Y. J. Zhang, Y. Y. Zhang, Yiyun Zhang, Z. P. Zhang, Z. Q. Zhang, D. X. Zhao, J. B. Zhao, J. W. Zhao, M. G. Zhao, P. P. Zhao, W. R. Zhao, X. J. Zhao, Y. B. Zhao, H. Q. Zheng, J. P. Zheng, L. S. Zheng, Z. P. Zheng, X. C. Zhong, B. Q. Zhou, G. M. Zhou, L. Zhou, N. F. Zhou, K. J. Zhu, Q. M. Zhu, Y. C. Zhu, Y. S. Zhu, Yingchun Zhu, Z. A. Zhu, B. A. Zhuang, B. S. Zou

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

35 Scopus citations

Abstract

The absolute branching fraction for the decay D⁺→K̄ ⁰e⁺ν_e is determined using 5321±149±160 singly tagged D^- event sample from the data collected around 3.773 GeV with the BES-II detector at the BEPC collider. In the system recoiling against the singly tagged D^- mesons, 34.4±6.1 events for D⁺→K̄⁰e ⁺ν_e are observed. Those yield the absolute branching fraction to be BF(D⁺→K̄⁰e⁺ν _e)=(8.95±1.59±0.67)%. The ratio of the two partial widths for the decays of D⁰→K^-e⁺ν _e and D⁺→K̄⁰e⁺ν _e is determined to be Γ(D⁰→K^-e ⁺ν_e) /Γ(D⁺→K̄⁰e⁺ν_e)=1. 08±0.22±0.07.

Original language	English
Pages (from-to)	24-30
Number of pages	7
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	608
Issue number	1-2
DOIs	https://doi.org/10.1016/j.physletb.2004.12.040
State	Published - 17 Feb 2005
Externally published	Yes

Access to Document

10.1016/j.physletb.2004.12.040

Cite this

Ablikim, M., Bai, J. Z., Ban, Y., Bian, J. G., Cai, X., Chang, J. F., Chen, H. F., Chen, H. S., Chen, H. X., Chen, J. C., Chen, J., Chen, J., Chen, M. L., Chen, Y. B., Chi, S. P., Chu, Y. P., Cui, X. Z., Dai, H. L., Dai, Y. S., ... Zou, B. S. (2005). Direct measurement of the branching fraction for the decay of D⁺ → K̄⁰e⁺ν_e and determination of Γ(D⁰ → K^-e⁺ν_e)/ Γ(D⁺ → K̄⁰e⁺ν_e. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 608(1-2), 24-30. https://doi.org/10.1016/j.physletb.2004.12.040

@article{b49586decadd44319c37d2dc7e3fa0f0,

title = "Direct measurement of the branching fraction for the decay of D+ → {\=K}0e+νe and determination of Γ(D0 → K-e+νe)/ Γ(D+ → {\=K}0e+νe",

abstract = "The absolute branching fraction for the decay D+→{\=K} 0e+νe is determined using 5321±149±160 singly tagged D- event sample from the data collected around 3.773 GeV with the BES-II detector at the BEPC collider. In the system recoiling against the singly tagged D- mesons, 34.4±6.1 events for D+→{\=K}0e +νe are observed. Those yield the absolute branching fraction to be BF(D+→{\=K}0e+ν e)=(8.95±1.59±0.67)\%. The ratio of the two partial widths for the decays of D0→K-e+ν e and D+→{\=K}0e+ν e is determined to be Γ(D0→K-e +νe) /Γ(D+→{\=K}0e+νe)=1. 08±0.22±0.07.",

author = "M. Ablikim and Bai, \{J. Z.\} and Y. Ban and Bian, \{J. G.\} and X. Cai and Chang, \{J. F.\} and Chen, \{H. F.\} and Chen, \{H. S.\} and Chen, \{H. X.\} and Chen, \{J. C.\} and Jin Chen and Jun Chen and Chen, \{M. L.\} and Chen, \{Y. B.\} and Chi, \{S. P.\} and Chu, \{Y. P.\} and Cui, \{X. Z.\} and Dai, \{H. L.\} and Dai, \{Y. S.\} and Deng, \{Z. Y.\} and Dong, \{L. Y.\} and Du, \{S. X.\} and Du, \{Z. Z.\} and J. Fang and Fang, \{S. S.\} and Fu, \{C. D.\} and Fu, \{H. Y.\} and Gao, \{C. S.\} and Gao, \{Y. N.\} and Gong, \{M. Y.\} and Gong, \{W. X.\} and Gu, \{S. D.\} and Guo, \{Y. N.\} and Guo, \{Y. Q.\} and He, \{K. L.\} and M. He and X. He and Heng, \{Y. K.\} and Hu, \{H. M.\} and T. Hu and L. Huang and Huang, \{X. P.\} and Ji, \{X. B.\} and Jia, \{Q. Y.\} and Jiang, \{C. H.\} and Jiang, \{X. S.\} and Jin, \{D. P.\} and S. Jin and Y. Jin and Lai, \{Y. F.\} and F. Li and G. Li and Li, \{H. H.\} and J. Li and Li, \{J. C.\} and Li, \{Q. J.\} and Li, \{R. B.\} and Li, \{R. Y.\} and Li, \{S. M.\} and Li, \{W. G.\} and Li, \{X. L.\} and Li, \{X. Q.\} and Li, \{X. S.\} and Liang, \{Y. F.\} and Liao, \{H. B.\} and Liu, \{C. X.\} and F. Liu and Fang Liu and Liu, \{H. M.\} and Liu, \{J. B.\} and Liu, \{J. P.\} and Liu, \{R. G.\} and Liu, \{Z. A.\} and Liu, \{Z. X.\} and F. Lu and Lu, \{G. R.\} and Lu, \{J. G.\} and Luo, \{C. L.\} and Luo, \{X. L.\} and Ma, \{F. C.\} and Ma, \{J. M.\} and Ma, \{L. L.\} and Ma, \{Q. M.\} and Ma, \{X. Y.\} and Mao, \{Z. P.\} and Mo, \{X. H.\} and J. Nie and Nie, \{Z. D.\} and Peng, \{H. P.\} and Qi, \{N. D.\} and Qian, \{C. D.\} and H. Qin and Qiu, \{J. F.\} and Ren, \{Z. Y.\} and G. Rong and Shan, \{L. Y.\} and L. Shang and Shen, \{D. L.\} and Shen, \{X. Y.\} and Sheng, \{H. Y.\} and F. Shi and X. Shi and Sun, \{H. S.\} and Sun, \{S. S.\} and Sun, \{Y. Z.\} and Sun, \{Z. J.\} and X. Tang and N. Tao and Tian, \{Y. R.\} and Tong, \{G. L.\} and Wang, \{D. Y.\} and Wang, \{J. Z.\} and K. Wang and L. Wang and Wang, \{L. S.\} and M. Wang and P. Wang and Wang, \{P. L.\} and Wang, \{S. Z.\} and Wang, \{W. F.\} and Wang, \{Y. F.\} and Zhe Wang and Z. Wang and Zheng Wang and Wang, \{Z. Y.\} and Wei, \{C. L.\} and Wei, \{D. H.\} and N. Wu and Wu, \{Y. M.\} and Xia, \{X. M.\} and Xie, \{X. X.\} and B. Xin and Xu, \{G. F.\} and H. Xu and Y. Xu and Xue, \{S. T.\} and Yan, \{M. L.\} and F. Yang and Yang, \{H. X.\} and J. Yang and Yang, \{S. D.\} and Yang, \{Y. X.\} and M. Ye and Ye, \{M. H.\} and Ye, \{Y. X.\} and Yi, \{L. H.\} and Yi, \{Z. Y.\} and Yu, \{C. S.\} and Yu, \{G. W.\} and Yuan, \{C. Z.\} and Yuan, \{J. M.\} and Y. Yuan and Q. Yue and Zang, \{S. L.\} and Yu Zeng and Y. Zeng and Zhang, \{B. X.\} and Zhang, \{B. Y.\} and Zhang, \{C. C.\} and Zhang, \{D. H.\} and Zhang, \{H. Y.\} and J. Zhang and Zhang, \{J. Y.\} and Zhang, \{J. W.\} and Zhang, \{L. S.\} and Zhang, \{Q. J.\} and Zhang, \{S. Q.\} and Zhang, \{X. M.\} and Zhang, \{X. Y.\} and Zhang, \{Y. J.\} and Zhang, \{Y. Y.\} and Yiyun Zhang and Zhang, \{Z. P.\} and Zhang, \{Z. Q.\} and Zhao, \{D. X.\} and Zhao, \{J. B.\} and Zhao, \{J. W.\} and Zhao, \{M. G.\} and Zhao, \{P. P.\} and Zhao, \{W. R.\} and Zhao, \{X. J.\} and Zhao, \{Y. B.\} and Zheng, \{H. Q.\} and Zheng, \{J. P.\} and Zheng, \{L. S.\} and Zheng, \{Z. P.\} and Zhong, \{X. C.\} and Zhou, \{B. Q.\} and Zhou, \{G. M.\} and L. Zhou and Zhou, \{N. F.\} and Zhu, \{K. J.\} and Zhu, \{Q. M.\} and Zhu, \{Y. C.\} and Zhu, \{Y. S.\} and Yingchun Zhu and Zhu, \{Z. A.\} and Zhuang, \{B. A.\} and Zou, \{B. S.\}",

year = "2005",

month = feb,

day = "17",

doi = "10.1016/j.physletb.2004.12.040",

language = "英语",

volume = "608",

pages = "24--30",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

publisher = "Elsevier B.V.",

number = "1-2",

}

Ablikim, M, Bai, JZ, Ban, Y, Bian, JG, Cai, X, Chang, JF, Chen, HF, Chen, HS, Chen, HX, Chen, JC, Chen, J, Chen, J, Chen, ML, Chen, YB, Chi, SP, Chu, YP, Cui, XZ, Dai, HL, Dai, YS, Deng, ZY, Dong, LY, Du, SX, Du, ZZ, Fang, J, Fang, SS, Fu, CD, Fu, HY, Gao, CS, Gao, YN, Gong, MY, Gong, WX, Gu, SD, Guo, YN, Guo, YQ, He, KL, He, M, He, X, Heng, YK, Hu, HM, Hu, T, Huang, L, Huang, XP, Ji, XB, Jia, QY, Jiang, CH, Jiang, XS, Jin, DP, Jin, S, Jin, Y, Lai, YF, Li, F, Li, G, Li, HH, Li, J, Li, JC, Li, QJ, Li, RB, Li, RY, Li, SM, Li, WG, Li, XL, Li, XQ, Li, XS, Liang, YF, Liao, HB, Liu, CX, Liu, F, Liu, F, Liu, HM, Liu, JB, Liu, JP, Liu, RG, Liu, ZA, Liu, ZX, Lu, F, Lu, GR, Lu, JG, Luo, CL, Luo, XL, Ma, FC, Ma, JM, Ma, LL, Ma, QM, Ma, XY, Mao, ZP, Mo, XH, Nie, J, Nie, ZD, Peng, HP, Qi, ND, Qian, CD, Qin, H, Qiu, JF, Ren, ZY, Rong, G, Shan, LY, Shang, L, Shen, DL, Shen, XY, Sheng, HY, Shi, F, Shi, X, Sun, HS, Sun, SS, Sun, YZ, Sun, ZJ, Tang, X, Tao, N, Tian, YR, Tong, GL, Wang, DY, Wang, JZ, Wang, K, Wang, L, Wang, LS, Wang, M, Wang, P, Wang, PL, Wang, SZ, Wang, WF, Wang, YF, Wang, Z, Wang, Z, Wang, Z, Wang, ZY, Wei, CL, Wei, DH, Wu, N, Wu, YM, Xia, XM, Xie, XX, Xin, B, Xu, GF, Xu, H, Xu, Y, Xue, ST, Yan, ML, Yang, F, Yang, HX, Yang, J, Yang, SD, Yang, YX, Ye, M, Ye, MH, Ye, YX, Yi, LH, Yi, ZY, Yu, CS, Yu, GW, Yuan, CZ, Yuan, JM, Yuan, Y, Yue, Q, Zang, SL, Zeng, Y, Zeng, Y, Zhang, BX, Zhang, BY, Zhang, CC, Zhang, DH, Zhang, HY, Zhang, J, Zhang, JY, Zhang, JW, Zhang, LS, Zhang, QJ, Zhang, SQ, Zhang, XM, Zhang, XY, Zhang, YJ, Zhang, YY, Zhang, Y, Zhang, ZP, Zhang, ZQ, Zhao, DX, Zhao, JB, Zhao, JW, Zhao, MG, Zhao, PP, Zhao, WR, Zhao, XJ, Zhao, YB, Zheng, HQ, Zheng, JP, Zheng, LS, Zheng, ZP, Zhong, XC, Zhou, BQ, Zhou, GM, Zhou, L, Zhou, NF, Zhu, KJ, Zhu, QM, Zhu, YC, Zhu, YS, Zhu, Y, Zhu, ZA, Zhuang, BA & Zou, BS 2005, 'Direct measurement of the branching fraction for the decay of D⁺ → K̄⁰e⁺ν_e and determination of Γ(D⁰ → K^-e⁺ν_e)/ Γ(D⁺ → K̄⁰e⁺ν_e', Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, vol. 608, no. 1-2, pp. 24-30. https://doi.org/10.1016/j.physletb.2004.12.040

Direct measurement of the branching fraction for the decay of D⁺ → K̄⁰e⁺ν_e and determination of Γ(D⁰ → K^-e⁺ν_e)/ Γ(D⁺ → K̄⁰e⁺ν_e. / Ablikim, M.; Bai, J. Z.; Ban, Y. et al.
In: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, Vol. 608, No. 1-2, 17.02.2005, p. 24-30.

Research output: Contribution to journal › Article › peer-review

TY - JOUR

T1 - Direct measurement of the branching fraction for the decay of D+ → K̄0e+νe and determination of Γ(D0 → K-e+νe)/ Γ(D+ → K̄0e+νe

AU - Ablikim, M.

AU - Bai, J. Z.

AU - Ban, Y.

AU - Bian, J. G.

AU - Cai, X.

AU - Chang, J. F.

AU - Chen, H. F.

AU - Chen, H. S.

AU - Chen, H. X.

AU - Chen, J. C.

AU - Chen, Jin

AU - Chen, Jun

AU - Chen, M. L.

AU - Chen, Y. B.

AU - Chi, S. P.

AU - Chu, Y. P.

AU - Cui, X. Z.

AU - Dai, H. L.

AU - Dai, Y. S.

AU - Deng, Z. Y.

AU - Dong, L. Y.

AU - Du, S. X.

AU - Du, Z. Z.

AU - Fang, J.

AU - Fang, S. S.

AU - Fu, C. D.

AU - Fu, H. Y.

AU - Gao, C. S.

AU - Gao, Y. N.

AU - Gong, M. Y.

AU - Gong, W. X.

AU - Gu, S. D.

AU - Guo, Y. N.

AU - Guo, Y. Q.

AU - He, K. L.

AU - He, M.

AU - He, X.

AU - Heng, Y. K.

AU - Hu, H. M.

AU - Hu, T.

AU - Huang, L.

AU - Huang, X. P.

AU - Ji, X. B.

AU - Jia, Q. Y.

AU - Jiang, C. H.

AU - Jiang, X. S.

AU - Jin, D. P.

AU - Jin, S.

AU - Jin, Y.

AU - Lai, Y. F.

AU - Li, F.

AU - Li, G.

AU - Li, H. H.

AU - Li, J.

AU - Li, J. C.

AU - Li, Q. J.

AU - Li, R. B.

AU - Li, R. Y.

AU - Li, S. M.

AU - Li, W. G.

AU - Li, X. L.

AU - Li, X. Q.

AU - Li, X. S.

AU - Liang, Y. F.

AU - Liao, H. B.

AU - Liu, C. X.

AU - Liu, F.

AU - Liu, Fang

AU - Liu, H. M.

AU - Liu, J. B.

AU - Liu, J. P.

AU - Liu, R. G.

AU - Liu, Z. A.

AU - Liu, Z. X.

AU - Lu, F.

AU - Lu, G. R.

AU - Lu, J. G.

AU - Luo, C. L.

AU - Luo, X. L.

AU - Ma, F. C.

AU - Ma, J. M.

AU - Ma, L. L.

AU - Ma, Q. M.

AU - Ma, X. Y.

AU - Mao, Z. P.

AU - Mo, X. H.

AU - Nie, J.

AU - Nie, Z. D.

AU - Peng, H. P.

AU - Qi, N. D.

AU - Qian, C. D.

AU - Qin, H.

AU - Qiu, J. F.

AU - Ren, Z. Y.

AU - Rong, G.

AU - Shan, L. Y.

AU - Shang, L.

AU - Shen, D. L.

AU - Shen, X. Y.

AU - Sheng, H. Y.

AU - Shi, F.

AU - Shi, X.

AU - Sun, H. S.

AU - Sun, S. S.

AU - Sun, Y. Z.

AU - Sun, Z. J.

AU - Tang, X.

AU - Tao, N.

AU - Tian, Y. R.

AU - Tong, G. L.

AU - Wang, D. Y.

AU - Wang, J. Z.

AU - Wang, K.

AU - Wang, L.

AU - Wang, L. S.

AU - Wang, M.

AU - Wang, P.

AU - Wang, P. L.

AU - Wang, S. Z.

AU - Wang, W. F.

AU - Wang, Y. F.

AU - Wang, Zhe

AU - Wang, Z.

AU - Wang, Zheng

AU - Wang, Z. Y.

AU - Wei, C. L.

AU - Wei, D. H.

AU - Wu, N.

AU - Wu, Y. M.

AU - Xia, X. M.

AU - Xie, X. X.

AU - Xin, B.

AU - Xu, G. F.

AU - Xu, H.

AU - Xu, Y.

AU - Xue, S. T.

AU - Yan, M. L.

AU - Yang, F.

AU - Yang, H. X.

AU - Yang, J.

AU - Yang, S. D.

AU - Yang, Y. X.

AU - Ye, M.

AU - Ye, M. H.

AU - Ye, Y. X.

AU - Yi, L. H.

AU - Yi, Z. Y.

AU - Yu, C. S.

AU - Yu, G. W.

AU - Yuan, C. Z.

AU - Yuan, J. M.

AU - Yuan, Y.

AU - Yue, Q.

AU - Zang, S. L.

AU - Zeng, Yu

AU - Zeng, Y.

AU - Zhang, B. X.

AU - Zhang, B. Y.

AU - Zhang, C. C.

AU - Zhang, D. H.

AU - Zhang, H. Y.

AU - Zhang, J.

AU - Zhang, J. Y.

AU - Zhang, J. W.

AU - Zhang, L. S.

AU - Zhang, Q. J.

AU - Zhang, S. Q.

AU - Zhang, X. M.

AU - Zhang, X. Y.

AU - Zhang, Y. J.

AU - Zhang, Y. Y.

AU - Zhang, Yiyun

AU - Zhang, Z. P.

AU - Zhang, Z. Q.

AU - Zhao, D. X.

AU - Zhao, J. B.

AU - Zhao, J. W.

AU - Zhao, M. G.

AU - Zhao, P. P.

AU - Zhao, W. R.

AU - Zhao, X. J.

AU - Zhao, Y. B.

AU - Zheng, H. Q.

AU - Zheng, J. P.

AU - Zheng, L. S.

AU - Zheng, Z. P.

AU - Zhong, X. C.

AU - Zhou, B. Q.

AU - Zhou, G. M.

AU - Zhou, L.

AU - Zhou, N. F.

AU - Zhu, K. J.

AU - Zhu, Q. M.

AU - Zhu, Y. C.

AU - Zhu, Y. S.

AU - Zhu, Yingchun

AU - Zhu, Z. A.

AU - Zhuang, B. A.

AU - Zou, B. S.

PY - 2005/2/17

Y1 - 2005/2/17

N2 - The absolute branching fraction for the decay D+→K̄ 0e+νe is determined using 5321±149±160 singly tagged D- event sample from the data collected around 3.773 GeV with the BES-II detector at the BEPC collider. In the system recoiling against the singly tagged D- mesons, 34.4±6.1 events for D+→K̄0e +νe are observed. Those yield the absolute branching fraction to be BF(D+→K̄0e+ν e)=(8.95±1.59±0.67)%. The ratio of the two partial widths for the decays of D0→K-e+ν e and D+→K̄0e+ν e is determined to be Γ(D0→K-e +νe) /Γ(D+→K̄0e+νe)=1. 08±0.22±0.07.

AB - The absolute branching fraction for the decay D+→K̄ 0e+νe is determined using 5321±149±160 singly tagged D- event sample from the data collected around 3.773 GeV with the BES-II detector at the BEPC collider. In the system recoiling against the singly tagged D- mesons, 34.4±6.1 events for D+→K̄0e +νe are observed. Those yield the absolute branching fraction to be BF(D+→K̄0e+ν e)=(8.95±1.59±0.67)%. The ratio of the two partial widths for the decays of D0→K-e+ν e and D+→K̄0e+ν e is determined to be Γ(D0→K-e +νe) /Γ(D+→K̄0e+νe)=1. 08±0.22±0.07.

UR - https://www.scopus.com/pages/publications/19944433660

U2 - 10.1016/j.physletb.2004.12.040

DO - 10.1016/j.physletb.2004.12.040

M3 - 文章

AN - SCOPUS:19944433660

SN - 0370-2693

VL - 608

SP - 24

EP - 30

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

IS - 1-2

ER -

Direct measurement of the branching fraction for the decay of D⁺ → K̄⁰e⁺ν_e and determination of Γ(D⁰ → K^-e⁺ν_e)/ Γ(D⁺ → K̄⁰e⁺ν_e

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