Upper limit of the total cross section for the pn to pn eta` reaction

Klaja, J.; Kamys, B.; Gil, D.; Zipper, W.; Silarski, M.; Khoukaz, A.; Smyrski, J.; Johansson, T.; Ritman, J.; Täschner, A.; Oelert, W.; Rejdych, B.; Sefzick, T.; Zielinski, M.; Grzonka, D.; Wüstner, P.; Wolke, M.; Bass, S. D.; Czyzykiewicz, R.; Zdebik, J.; Siemaszko, M.; Krzemien, W.; Moskal, P.; Czerwinksi, E.; Klaja, P.

doi:10.1103/PhysRevC.81.035209

Journal Article

Upper limit of the total cross section for the pn to pn eta` reaction

Klaja, J.FZJ* ; Moskal, P. ; Bass, S. D. ; Czerwinksi, E. ; Czyzykiewicz, R. ; Gil, D. ; Grzonka, D.FZJ* ; Johansson, T. ; Kamys, B. ; Khoukaz, A. ; Klaja, P.FZJ* ; Krzemien, W. ; Oelert, W.FZJ* ; Rejdych, B. ; Ritman, J.FZJ* ; Sefzick, T.FZJ* ; Siemaszko, M. ; Silarski, M. ; Smyrski, J. ; Täschner, A. ; Wolke, M. ; Wüstner, P. ; Zdebik, J. ; Zielinski, M. ; Zipper, W.

2010
Inst. Woodbury, NY

. Physical review / C 81(3), 035209 (2010) [10.1103/PhysRevC.81.035209]

This record in other databases:

Please use a persistent id in citations: http://hdl.handle.net/2128/10317 doi:10.1103/PhysRevC.81.035209

Abstract: The upper limit of the total cross section for the pn -> pn eta' reaction has been determined near the kinematical threshold in the excess energy range from 0 to 24 MeV. The measurement was performed using the COSY-11 detector setup, a deuteron cluster target, and the proton beam of COSY with a momentum of 3.35 GeV/c. The energy dependence of the upper limit of the cross section was extracted exploiting the Fermi momenta of nucleons inside the deuteron. Comparison of the determined upper limit of the ratio R-eta' = sigma(pn -> pn eta')/sigma(pp -> pp eta') with the corresponding ratio for eta-meson production does not favor the dominance of the N*(1535) resonance in the production process of the eta' meson and suggests nonidentical production mechanisms for eta and eta' mesons.

Keyword(s): eta(958): hadroproduction ; correlation function ; cross section: upper limit ; p n --> p n eta(958)

Classification:

Note: We are grateful for the useful comments of Burkhard Kampfer, Piotr Salabura, and Joanna Stepaniak. The work was partially supported by the European Community-Research Infrastructure Activity under the FP6 and FP7 programs (Hadron Physics, RII3-CT-2004-506078, PrimeNet No. 227431), by the Polish Ministry of Science and Higher Education under Grant Nos. 3240/H03/2006/31, 1202/DFG/2007/03, and 0082/B/H03/2008/34, by the German Research Foundation (DFG), by the FFE grants from the Research Center Julich, by the Austrian Science Fund, FWF, through grant P20436 and by the virtual institute "Spin and strong QCD" (VH-VP-231).

Contributing Institute(s):