Measurement of the Branching Ratio {Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0})/{Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{gamma})
The authors have measured a preliminary value for the branching ratio (Gamma)(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0})/{Gamma}(D*{sup +}{sub s} --> D{sup +}{sub s}{gamma}) = 0.0621 {+-} 0.0049(stat) {+-} 0.0063(syst), which is consistent with the previous measurement, but has higher precision. They have also measured {Gamma}(D*{sup 0} --> D{sup 0}{pi}{sup 0})/{Gamma}(D*{sup 0} --> D{sup 0}{gamma}) = 1.740 {+-} 0.020(stat) {+-} 0.125(syst), which is more precise than, and in agreement with, the world average. The branching fraction B(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0}) = 0.0585 {+-} 0.0043(stat) {+-} 0.0056(syst) is larger than the theoretical prediction, which is in the 1-3% range. However, it should be noted that the theory predicts a strong correlation between B(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0}) and B(D*{sup +} --> D{sup +}{gamma}); for B(D*{sup +} --> D{sup +}{gamma}) {approx}< 1%, B(D*{sup +}{sub s} --> D{sup +}{sub s}{pi}{sup 0}) is expected to be greatly enhanced.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 829788
- Report Number(s):
- SLAC-PUB-10660; TRN: US0405779
- Resource Relation:
- Other Information: PBD: 18 Aug 2004
- Country of Publication:
- United States
- Language:
- English
Similar Records
Measurement of the branching ratios {gamma}(D{sub s}*{sup +}{yields}D{sub s}{sup +}{pi}{sup 0})/{gamma}(D{sub s}*{sup +}{yields}D{sub s}{sup +}{gamma}) and {gamma}(D*{sup 0}{yields}D{sup 0}{pi}{sup 0})/{gamma}(D*{sup 0}{yields}D{sup 0}{gamma})
Study of the Decay B{sub s}{sup 0}{yields}D{sub s}{sup (*)}D{sub s}{sup (*)}