Erratum: Eur. Phys. J. C.22, 695–705 (2002) – DOI 10.1007/s100520100827 Published online: 7 December 2001 Abstract Publication: European Physical Journal C Pub Date: August 2002 DOI: 10.1007/s10052-002-0987-x Bibcode: 2002EPJC...24..665.