Role of channel temperature and mass window in the binary breakup of U*236

Abstract

The dynamical cluster-decay model (DCM), an extension of the preformed cluster model of Gupta and collaborators for the decay of hot and rotating compound nuclei (CN) formed in low-energy reactions, has been applied to study the mass distribution of $^{236}\mathrm{U}^{*}$ formed at an excitation energy corresponding to the capture of thermal neutrons by $^{235}\mathrm{U}$. The role of excitation energy of the compound nucleus, neck length parameter, and mass window (range of mass numbers) considered are also analyzed. The excitation energy of the compound nucleus is kept fixed for all channels, and the temperature for each channel is obtained iteratively to conserve the sum of excitation energies of two fragments to the excitation energy of the compound nucleus at a fixed distance, mimicking the saddle configuration. The obtained mass distributions and yields are compared with experimental yields.