Level Statistics of SU(3)-SU(3)* Transitional Region
  The level statistics of SU(3)-SU(3)* transitional region of IBM is described by the nearest neighbor spacing distribution statistics. The energy levels are determined by using the SO(6)representation of eigenstates. By employing the MLE technique, the parameter of Abul-Magd distribution is estimated where suggest less regular dynamics for transitional region in compare to dynamical symmetry limits. Also, the O(6)dynamical symmetry which is known as the critical point of this transitional region, describes a deviation to more regular dynamics. 
M. A. Jafarizadeh, N. Fouladi, H. Sabri, P. Hossein nezhade gavifekr,   Z. Ranjbar
nucl-th