On the sensitivity of the energy of vanishing flow towards mass   asymmetry of colliding nuclei
  We demonstrate the role of the mass asymmetry in the energy of vanishing flow by studying asymmetric reactions throughout the periodic table and over entire colliding geometry. Our results, which are almost independent of the system size and as well as of the colliding geometries indicate a sizable effect of the asymmetry of the reaction on the energy of vanishing flow. 
Supriya Goyal, Rajeev K. Puri
nucl-th