5 papers · 1 filter
Drift chamber with a c-shaped frame
J. Smyrski, Ch. Kolf, H. -H. Adam +26
We present the construction of a planar drift chamber with wires stretched between two arms of a c-shaped aluminium frame. The special shape of the frame allows to extendthe moment…
Energy dependence of the Lambda/Sigma0 production cross section ratio in proton proton interactions
P. Kowina, M. Wolke, H. -H. Adam +26
The production of the Lambda and Sigma0 hyperons has been measured via the pp->pK+Lambda / Sigma0 reaction at the internal COSY-11 facility in the excess energy range between 14 an…
Total and Differential Cross Sections for the pp-->pp eta-prime Reaction Near Threshold
A. Khoukaz, I. Geck, C. Quentmeier +25
The eta-prime meson production in the reaction pp-->pp eta-prime has been studied at excess energies of Q = 26.5, 32.5 and 46.6 MeV using the internal beam facility COSY-11 at the…
Upper limit for the cross section of the overlapping scalar resonances f0(980) and a0(980) produced in proton-proton collisions in the range of the reaction threshold
P. Moskal, H. -H. Adam, A. Budzanowski +26
Utilizing a missing mass technique we investigate the pp --> ppX reaction scanning beam energies in the range permitting to create a mass close to that of the f0(980) and a0(980) s…
Analysing power A_y in the reaction p(pol) p --> p p eta close to threshold
P. Winter, H. -H. Adam, F. Bauer +25
Measurements of the eta meson production with a polarised proton beam in the reaction p(pol) p --> p p eta have been carried out at an excess energy of Q = 40 MeV. The dependence o…