Role of partial linear momentum transfer on incomplete fusion reaction

Abstract

Measurements of forward recoil range distributions (FRRDs) of the evaporation residues, populated in the 20Ne+51V reaction at $E_{lab}\approx 145$ MeV, have been carried out using the offline characteristic $\gamma$ -ray detection method. The observation does corroborate the presence of complete fusion (CF) process in the population of pxn channel residues and both complete as well as incomplete fusion (ICF) processes in the population of $\alpha$ emitting channel residues. The FRRDs of pxn channel residues comprise single peak only, whereas $\alpha$ emitting channel residues have multiple peaks in their FRRDs. CF cross section data were used to extract the fusion functions. Extracted fusion functions were found to be suppressed with respect to the universal fusion function which is used as a uniform standard reference. The observed contribution arising from the ICF process in the population of $\alpha$ emitting channel residues is explained in terms of breakup fusion model.