Description: Study of the production mechanism of the eta meson by means of analysing power measurements

This title appears in the Scientific Report : 2007

Study of the production mechanism of the eta meson by means of analysing power measurements

Information about the production mechanism of the eta meson in proton-proton collisions can be inferred by confronting the experimental studies on the analysing power for the (p) over right arrowp -> pp eta reaction with the theoretical predictions of this observable. The determined analysing pow...

Personal Name(s):	Czyzykiewicz, R.
	Moskal, P. / Adam, H.-H. / Budzanowski, A. / Czerwinski, E. / Gil, D. / Grzonka, D. / Janusz, M. / Jarczyk, L. / Kamys, B. / Khoukaz, A. / Klaja, P. / Majewski, J. / Oelert, W. / Piskor-Ignatowicz, C. / Przerwa, J. / Ritman, J. / Rohdjess, H. / Rozek, T. / Sefzick, T. / Siemasko, M. / Smyrski, J. / Täschner, A. / Ulbrich, K. / Winter, P. / Wolke, M. / Wüstner, P. / Zipper, W.
Contributing Institute:	Experimentelle Hadronstruktur; IKP-1
Published in:	International journal of modern physics / A, 22 (2007) S. 518 - 522
Imprint:	Singapur World Scientific Publ. 2007
Physical Description:	518 - 522
DOI:	10.1142/S0217751X07035744
Document Type:	Journal Article
Research Program:	Physik der Hadronen und Kerne
Series Title:	International Journal of Modern Physics A 22
Subject (ZB):	J eta meson close-to-threshold production analysing power
Link:	Get full text OpenAccess
	Publikationsportal JuSER

Please use the identifier: http://dx.doi.org/10.1142/S0217751X07035744 in citations.
Please use the identifier: http://hdl.handle.net/2128/2546 in citations.

Information about the production mechanism of the eta meson in proton-proton collisions can be inferred by confronting the experimental studies on the analysing power for the (p) over right arrowp -> pp eta reaction with the theoretical predictions of this observable. The determined analysing powers for Q=10 MeV and Q=36 MeV are consistent with zero. Results show that the predictions of pure pseudoscalar meson exchange model fairly describe the experimental data, while the predictions of pure vector meson exchange dominance model disagree with the data at the level of 4.3 sigma.