| Autor: |
Bilger, R., Böhm, A., Brand, S., Brand, H., Brinkmann, K.-T., Clement, H., Cloth, P., Dahmen, M., Dellert, M., Dennert, H., Dshemuchadse, S., Eyrich, W., Filges, D., Freiesleben, H., Fritsch, M., Geyer, R., Hassan, A., Hauffe, J., Herrmann, P., Hübner, B., Jahn, P., Kilian, K., Kirsch, M., Koch, H., Kress, J., Krug, J., Kuhlmann, E., Lange, J. S., Metzger, A., Michel, P., Möller, K., Morsch, H. P., Moosburger, M., Nake, C., Nann, H., Naumann, B., Naumann, L., Ringe, P., Roderburg, E., Rogge, M., Schamlott, A., Schönmeier, P., Schülke, A., Sperl, R., Steinke, M., Stinzing, F., Turek, P., Wagner, G. J., Wirth, S., Zielinski, U. |
| Jazyk: |
angličtina |
| Rok vydání: |
1998 |
| Předmět: |
|
| Zdroj: |
Phys. Lett. B 420 (1998) 217 |
| Popis: |
The reaction pp → K+ λ,p was measured exclusively at the cooler synchrotron COSY at beam momenta of pBeam = 2.50 GeV/c and pBeam = 2.75 GeV/c using the TOF detector. Angular and momentum distributions were obtained for the full phase space of the reaction products. Total cross sections were extracted to be (2.7 ± 0.3)μ b and (12.0 ± 0.4) μ b, respectively. The polarization of the λ-hyperon was determined as a function of its transversal momentum and was found to be negative for transverse momentum transfers of pT ≥ 0.3 GeV/c. The results together with existing data are compared with phenomenological parameterizations and model calculations on the basis of meson exchange. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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