Production of w mesons in proton-proton collisions

Abd El-Samad, S.; Abdel-Bary, M.; Brinkmann, K.-Th.; Clement, H.; Dshemuchadse, S.; Dutz, H.; Eyrich, W.; Erhardt, A.; Filges, D.; Filippi, A.; Freiesleben, H.; Fritsch, M.; Georgi, J.; Gillitzer, A.; Hesselbarth, D.; Jakob, B.; Karsch, L.; Kilian, K.; Koch, H.; Kress, J.; Kuhlmann, E.; Marcello, S.; Marwinski, S.; Mauro, S.; Meyer, W.; Michel, P.; Möller, K.; Mortel, H.; Morsch, H. P.; Naumann, L.; Plettner, C.; Richter, M.; Roderburg, E.; Schamlott, A.; Schönmeier, P.; Schulte-Wissermann, M.; Schroeder, W.; Stinzing, F.; Steinke, M.; Sun, G. Y.; Wagner, G. J.; Wagner, M.; Wilms, A.; Wirth, S.

Production of w mesons in proton-proton collisions

Abd El-Samad, S.; Abdel-Bary, M.; Brinkmann, K.-T.; Clement, H.; Dshemuchadse, S.; Dutz, H.; Eyrich, W.; Erhardt, A.; Filges, D.; Filippi, A.; Freiesleben, H.; Fritsch, M.; Georgi, J.; Gillitzer, A.; Hesselbarth, D.; Jakob, B.; Karsch, L.; Kilian, K.; Koch, H.; Kress, J.; Kuhlmann, E.; Marcello, S.; Marwinski, S.; Mauro, S.; Meyer, W.; Michel, P.; Möller, K.; Mortel, H.; Morsch, H. P.; Naumann, L.; Plettner, C.; Richter, M.; Roderburg, E.; Schamlott, A.; Schönmeier, P.; Schulte-Wissermann, M.; Schroeder, W.; Stinzing, F.; Steinke, M.; Sun, G. Y.; Wagner, G. J.; Wagner, M.; Wilms, A.; Wirth, S.

The cross section for the production of ω mesons in proton-proton collisions has been measured in a previously unexplored region of incident energies. Cross sections were extracted at 92 MeV and 173 MeV excess energy,
respectively. The angular distribution of the ω at ε=173 MeV is strongly anisotropic, demonstrating the importance of partial waves beyond pure s-wave production at this energy.

Physics Letters B 522 (2001) 16-21

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