Q-DEFORMED VIBRON MODEL FOR DIATOMIC-MOLECULES

A deformed version of the vibron model for diatomic molecules is const ructed. Both the O(4) and U(3) dynamical symmetries of the model are r ewritten, using the concept of complementary subalgebras, in a more co nvenient form, which is subsequently deformed. The present model unifi es the so far independent successful quantum-algebraic approaches to r otational and to vibrational spectra of diatomic molecules. In additio n, the method can be used for the construction of deformed versions of the U(5) and O(6) limits of the interacting boson model of nuclear st ructure.