Investigation of dynamics of fusion reactions through cross-section and spin distribution measurements

The CN populated at high excitation energy and angular momentum in fusion reactions can undergo decay through fission or emission of different light particles (α-particles, neutrons and protons). The statistical model has been extensively used to explain the evaporation spectra of these light particles and to extract important information about the properties of the CN. However, many of the evaporation studies show anomalous results from the statistical model predictions, for the mass symmetric systems. With this motivation we have performed the ER-gated spin distribution and the cross-section measurements for two systems ¹⁶O + ⁶⁴Zn (mass asymmetric) and ³²S + ⁴⁸Ti (mass symmetric) populating the same CN (⁸⁰Sr) for which the evaporation spectra studies have reported the existence of deviations for the symmetric system. Present measurements have been performed using 15 UD Pelletron accelerator and Heavy Ion Reaction Analyzer (HIRA) facility at Inter University Accelerator Centre (IUAC), New Delhi. The details of these measurements and analysis procedure have been described elsewhere