Search for the Phi(1860) Pentaquark at COMPASS

Narrow Xi-pi+- and Xi-bar+pi+- resonances produced by quasi-real photons have been searched for by the COMPASS experiment at CERN. The study was stimulated by the recent observation of an exotic baryonic state decaying into Xi-pi-, at a mass of 1862 MeV, interpreted as a pentaquark. While the ordinary hyperon states Xi(1530)^0 and Xi-bar(1530)^0 are clearly seen, no exotic baryon is observed in the data taken in 2002 and 2003.Comment: 10 pages, 5 figure

Introduction : Mutations technologiques en République Fédérale d'Allemagne

Haas H.D., Hess M. Introduction : Mutations technologiques en République Fédérale d'Allemagne. In: Revue Géographique de l'Est, tome 33, n°2,1993. Mutations technologiques en Allemagne. pp. 81-88