| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1853381 | Physics Letters B | 2007 | 5 Pages |
Abstract
The absolute branching fraction for the decay D+→K¯0μ+νμ is determined using 5321±149±1605321±149±160 singly tagged D−D− sample from the data collected around s=3.773 GeV with the BESII detector at the BEPC collider. In the system recoiling against the singly tagged D−D− mesons, 28.7±6.428.7±6.4 events for D+→K¯0μ+νμ are observed. These yield the absolute branching fraction to be BF(D+→K¯0μ+νμ)=(10.3±2.3±0.8)%. The ratio of the two partial widths for the decays D0→K−μ+νμD0→K−μ+νμ and D+→K¯0μ+νμ is determined to be Γ(D0→K−μ+νμ)/Γ(D+→K¯0μ+νμ)=0.87±0.24±0.15.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Nuclear and High Energy Physics
Authors
M. Ablikim, J.Z. Bai, Y. Ban, X. Cai, H.F. Chen, H.S. Chen, H.X. Chen, J.C. Chen, Jin Chen, Y.B. Chen, Y.P. Chu, Y.S. Dai, L.Y. Diao, Z.Y. Deng, Q.F. Dong, S.X. Du, J. Fang, S.S. Fang, C.D. Fu, C.S. Gao, Y.N. Gao, S.D. Gu, Y.T. Gu, Y.N. Guo, K.L. He,