1211.4380 (R. K. Choudhury et al.)

Collisions of Rare Earth Nuclei - a New Reaction Route for Synthesis of
Super Heavy Nuclei    [PDF]

R. K. Choudhury, Y. K. Gupta

Theories have predicted an island of stability in the super heavy mass region with half lives ranging from a few seconds to a few thousands of years. Extensive efforts are being made experimentally to reach these nuclei in the region of Z = 110 and above with suitable combinations of proton and neutron numbers. However, the cross sections for production of these nuclei are seen to be in the range of a few pico barns or less, and pose great experimental challenges. We show in the present note that great advantages can be obtained by carrying out heavy ion reactions with suitable combinations of projectile and target nuclei in the rare earth region, that will lead to compound systems with very small excitation energy, and with better neutron/proton ratio for larger stability.

View original: http://arxiv.org/abs/1211.4380