Analyzing power Ay for ω meson production in proton–proton collisions

We report on a determination of the analyzing power Ay in the p→p→ppω reaction studied with the TOF spectrometer located at the COSY-accelerator (Forschungszentrum Jülich, Germany). This spectrometer is very well suited for polarization measurements due to its rotational symmetry and full coverage o...

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Veröffentlicht in:	Physics letters. B 2008-04, Vol.662 (1), p.14-18
Hauptverfasser:	Abdel-Bary, M., Brinkmann, K.-Th, Clement, H., Dietrich, J., Doroshkevich, E., Dshemuchadse, S., Ehrhardt, K., Erhardt, A., Eyrich, W., Freiesleben, H., Gillitzer, A., Gottwald, J., Jä, R., Karsch, L., Kilian, K., Kuhlmann, E., Morsch, H.P., Pizzolotto, C., Reimann, S., Ritman, J., Roderburg, E., Schroeder, W., Schulte-Wissermann, M., Sefzick, T., Sun, G.Y., Teufel, A., Ullrich, W., Wenzel, R., Wintz, P., Wüstner, P., Zupranski, P.
Format:	Artikel
Sprache:	eng
Schlagworte:	Analyzing power Exact sciences and technology Nuclear physics Physics Polarization pp reaction The physics of elementary particles and fields ω meson
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Zusammenfassung:	We report on a determination of the analyzing power Ay in the p→p→ppω reaction studied with the TOF spectrometer located at the COSY-accelerator (Forschungszentrum Jülich, Germany). This spectrometer is very well suited for polarization measurements due to its rotational symmetry and full coverage of the azimuthal angle. For a beam momentum of p=3065 MeV/c corresponding to an excess energy of ϵ=129 MeVAy is found to be compatible with zero.
ISSN:	0370-2693 1873-2445
DOI:	10.1016/j.physletb.2008.02.035