Coupled-channel effects in the pp -> ppK+K- reaction
Nuclear Theory
2008-11-26 v1 Nuclear Experiment
Abstract
The cross sections for the pp -> ppK+K- reaction were measured at three beam energies 2.65, 2.70, and 2.83 GeV at the COSY-ANKE facility. The shape of the K+K- spectrum at low invariant masses largely reflects the importance of K\bar{K} final state interactions. It is shown that these data can be understood in terms of an elastic K+K- rescattering plus a contribution coming from the production of a K0\bar{K}0 pair followed by a charge-exchange rescattering. Though the data are not yet sufficient to establish the size of the cusp at the K0\bar{K}0 threshold, the low mass behaviour suggests that isospin-zero production is dominant.
Keywords
Cite
@article{arxiv.0807.0524,
title = {Coupled-channel effects in the pp -> ppK+K- reaction},
author = {A. Dzyuba and M. Buescher and M. Hartmann and I. Keshelashvili and V. Koptev and Y. Maeda and A. Sibirtsev and H. Stroeher and C. Wilkin},
journal= {arXiv preprint arXiv:0807.0524},
year = {2008}
}
Comments
9 pages with 4 figures