| Autor: |
Derrick, M, Fernandez, E, Fries, R, Hyman, L, Kooijman, P, Loos, J, Musgrave, B, Price, L, Schlereth, J, Sugano, K, Weiss, J, Wood, D, Ahlen, S, Baranko, G, Baringer, P, Blockus, D, Brabson, B, Daigo, M, Forden, G, Gray, S, Guillaud, J, Jung, C, Neal, H, Ogren, H, Rust, D |
| Jazyk: |
angličtina |
| Rok vydání: |
2016 |
| DOI: |
10.1103/physrevlett.53.1971 |
| Popis: |
We have observed inclusive production of D0 and D+ mesons, and their charge conjugates, in e+e- annihilation at 29 GeV on the basis of a data sample of 106 pb-1. These signals correspond to R values of R (D0+D0)=1.8±0.5 and R (D++D-)=1.2±0.4. Taking the D+ and D0 data together, we measure a charge asymmetry of A=-0.08±0.12 for charmed quarks. A comparison of R (D+D) with R (D*+D*) obtained via the process D*+D0+ gives a DD* ratio of 1.0-0.2+0.3, indicating that direct D* production dominates over direct D production. © 1984 The American Physical Society. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
|
