Transitional description of mass spectra and radiative decay widths for q¯ mesons in the U(4) model F. Pan, Y. Zhang and J. P. Draayer Eur. Phys. J. A, 28 3 (2006) 313-327 Published online: 07 July 2006 DOI: 10.1140/epja/i2006-10062-4