Study of omega-meson production in pp collisions at ANKE
Abstract
The production of omega-mesons in the pp->pp omega reaction has been investigated with the COSY-ANKE spectrometer for excess energies of 60 and 92MeV by detecting the two final protons and reconstructing their missing mass. The large multipion background was subtracted using an event-by-event transformation of the proton momenta between the two energies. Differential distributions and total cross sections were obtained after careful studies of possible systematic uncertainties in the overall ANKE acceptance. The results are compared with the predictions of theoretical models. Combined with data on the phi-meson, a more refined estimate is made of the Okubo-Zweig-Iizuka rule violation in the phi/omega production ratio.
Keywords
Cite
@article{arxiv.nucl-ex/0609010,
title = {Study of omega-meson production in pp collisions at ANKE},
author = {S. Barsov and M. Büscher and M. Hartmann and V. Hejny and A. Kacharava and I. Keshelashvili and A. Khoukaz and V. Koptev and P. Kulessa and A. Kulikov and I. Lehmann and V. Leontyev and G. Macharashvili and Y. Maeda and T. Mersmann and S. Merzliakov and S. Mikirtytchyants and A. Mussgiller and D. Oellers and H. Ohm and F. Rathmann and R. Schleichert and H. Seyfarth and H. Ströher and S. Trusov and Y. Valdau and P. Wüstner and S. Yaschenko and C. Wilkin},
journal= {arXiv preprint arXiv:nucl-ex/0609010},
year = {2008}
}
Comments
10 pages, 9 figures, version 1, submitted to EPJ-A