Recent physics at COSY — a review

Abstract

The COSY accelerator in Jülich is presented together with its internal and external detectors. The physics program performed recently is discussed with emphasis on strangeness physics and precision experiments.

The legacy of the experimental hadron physics programme at COSY

“…The experimental procedure was somewhat different at ANKE [260,261,262,263], where the K + candidate was first selected using time-of-flight information 5 . The signal from the K + stop counter was then used in the determination of the momenta of the K − and one of the protons.…”

“…There were, of course, conference proceedings, such as those of Refs. [5,6], but these only gave partial snapshots of the research that was current at the time. This review aims to present a more balanced picture over the twenty years.…”

Search for Low Mass Exotic mesonic structures. Part I: experimental results

“…Here σ=13 MeV and R=1.7 10 −2 for the ratio of the "60"/"135" peaks and R=10.9 10 −2 for the ratio of the "100"/"135" peaks. A large statistics missing mass spectra was obtained with the pd→ 3 Tπ + reaction studied at COSY [21] at T p =328 MeV also. The authors said that "small background was subtracted for each angular bin".…”