Open strangeness threshold production at COSY-11
Abstract
The open strangeness production near threshold is investigated at the internal experiment COSY-11 in different reaction channels. Recently, the main focus has been to extend measurements of the hyperon production pp->pK+Lambda/Sigma0 in different isospin channels as well as the associated strangeness production in pp->ppK+K-. The experimental technique is based on the reconstruction of the four momentum for all positively charged ejectiles. Neutrons are detected in addition using a neutral particle detector. The unregistered hyperon or meson is identified by means of the missing mass technique. The present status of the analysis for both reaction channels is presented. In case of the reaction pp->ppK+K-, very preliminary cross sections are shown.
Keywords
Cite
@article{arxiv.hep-ex/0411064,
title = {Open strangeness threshold production at COSY-11},
author = {P. Winter and H. -H. Adam and A. Budzanowski and R. Czyzykiewicz and D. Grzonka and M. Janusz and L. Jarczyk and B. Kamys and A. Khoukaz and K. Kilian and P. Klaja and P. Moskal and W. Oelert and C. Piskor-Ignatowicz and J. Przerwa and T. Rozek and T. Sefzick and M. Siemaszko and J. Smyrski and A. Strzalkowski and A. Taschner and M. Wolke and P. Wustner and W. Zipper},
journal= {arXiv preprint arXiv:hep-ex/0411064},
year = {2009}
}
Comments
Talk presented at the 19th European Conference on Few-Body Problems in Physics, Groningen, Netherlands, August 23-27, 2004, 3 pages, 3 figures