Search for pairing-vibration states in multinucleon transfer reactions

Heavy-ion transfer reactions at energies close to the Coulomb barrier are complex in their nature and it is important to identify the relevant degrees of freedom which have to be included in the description of the reaction mechanism. In different studied systems the main degrees of freedom in the quasi-elastic regime are reported to be single nucleon transfers, i.e. the multinucleon transfer channels are mostly populated via a sequance of single particles. Enhancement of two nucleaon transfer channels with respect to estimated probabilities for independent particle transfers are often discussed in literature, but the reported studies are mostly based on purely phenomenological ground.