Investigation of ϱ+, ϱ- and ϱ0 production in π+p interactions at 16 GeV/ c and pp interactions at 24 GeV/ c and quark model predictions
Abstract
Quasi-inclusive and total inclusive ϱ+, ϱ- and ϱ0 cross sections have been studied, using data of a π+p and a pp bubble chamber experiment at 16 and 24 GeV/ c, respectively. In pp collisions it is found that the total inclusive cross sections for ϱ0, ϱ+ and ϱ- production are about equal. This equality also holds for the differential cross sections dσ/ dy ∗, all showing the characteristics of dominantly central production. In the π+p reactions the ϱ- are mainly produced centrally, whereas there are strong additional contributions in the beam fragmentation region for ϱ+ and ϱ0 mesons. In the central region, however, the cross sections for ϱ+, ϱ- and ϱ0 production are almost equal within errors. All our findings agree with what is expected from quark model predictions.
- Publication:
-
Nuclear Physics B
- Pub Date:
- July 1978
- DOI:
- 10.1016/0550-3213(78)90532-1
- Bibcode:
- 1978NuPhB.140..235B