| Autor: |
Klaja, P., Moskal, P., Czerwinski, E., Czyzykiewicz, R., Deloff, A., Gil, D., Grzonka, D., Jarczyk, L., Kamys, B., Khoukaz, A., Klaja, J., Nakayama, K., Oelert, W., Ritman, J., Sefzick, T., Siemaszko, M., Silarski, M., Smyrski, J., Taeschner, A., Wolke, M., Zdebik, J., Zielinski, M., Zipper, W. |
| Rok vydání: |
2010 |
| Předmět: |
|
| Zdroj: |
Physics Letters B 684 (2010) 11-16 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.physletb.2009.12.056 |
| Popis: |
The proton-proton and proton-eta' invariant mass distributions have been determined for the pp -> ppeta' reaction at an excess energy of Q = 16.4 MeV. The measurement was carried out using the COSY-11 detector setup and the proton beam of the cooler synchrotron COSY. The shapes of the determined invariant mass distributions are similar to those of the pp -> ppeta reaction and reveal an enhancement for large relative proton-proton momenta. This result, together with the fact that the proton-eta interaction is much stronger that the proton-eta' interaction, excludes the hypothesis that the observed enhancement is caused by the interaction between the proton and the meson. |
| Databáze: |
arXiv |
| Externí odkaz: |
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