Alpha Conjugate Neck Structures in the Collisions of 35 MeV/nucleon 40Ca   with 40Ca
  The de-excitation of alpha-conjugate nuclei produced in reactions of 35 MeV/nucleon 40Ca with 40Ca has been investigated. Particular emphasis is placed on examining the dynamics of collisions leading to projectile-like fragment exit channels. A general exploration of the reaction systematics reveals the binary dissipative character of the collisions and a hierarchy effect similar to that seen for heavier systems. Investigation of the subset of events characterized by a total alpha-conjugate mass (alpha particles plus alpha-conjugate fragments) equal to 40 and atomic number equal to 20 reveals a dominance of alpha-conjugate exit channels. The hierarchy effect for these channels leads to the production of alpha-clustered neck structures with potentially exotic geometries and properties. 
K. Schmidt, X. Cao, E. J. Kim, K. Hagel, M. Barbui, J. Gauthier, S.   Wuenschel, G. Giuliani, M. R. D. Rodrigues, H. Zheng, ...
nucl-ex nucl-th