$\Delta I=4$ and $\Delta I=8$ bifurcations in rotational bands of   diatomic molecules
  It is shown that the recently observed $\Delta I=4$ bifurcation seen in superdeformed nuclear bands is also occurring in rotational bands of diatomic molecules. In addition, signs of a $\Delta I=8$ bifurcation, of the same order of magnitude as the $\Delta I=4$ one, are observed both in superdeformed nuclear bands and rotational bands of diatomic molecules. 
Dennis Bonatsos (NCRS Demokritos, Athens, Greece and ECT* Trento,   Italy), C. Daskaloyannis and G. A. Lalazissis (Physics D...