Abstract
Study of quasifission reaction mechanism and shell effects in compound nuclei has important implications on the synthesis of superheavy elements (SHE). Using the major accelerator facilities available in India, quasifission reaction mechanism and shell effects in compound nuclei were studied extensively. Fission fragment mass distribution was used as a probe. Two factors, viz., nuclear orientation and direction of mass flow of the initial dinuclear system after capture were seen to determine the extent of quasifission. From the measurement of fragment mass distribution in α-induced reaction on actinide targets, it was possible to constrain the excitation energy at which nuclear shell effect washed out.
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Acknowledgements
The authors are thankful to collaborators J K Meena, A Saha, J K Sahoo, R Mondal Saha, J Sadhukhan, Santanu Pal from VECC, Kolkata; S Chattopadhayay, N Majumdar, T Sinha and S Pal from Saha Institute of Nuclear Physics, Kolkata; D C Biswas, A Saxena, L M Pant and P K Sahu from Bhabha Atomic Research Centre, Mumbai; K S Golda, R P Singh, P Sugathan and S K Datta from Inter University Accelerator Centre, New Delhi. Thanks are also due the operators in IUAC-Delhi, BARC-TIFR-Mumbai Pelletrons and VECC-Kolkata Cyclotrons.
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GHOSH, T.K., CHAUDHURI, A., BANERJEE, K. et al. Fusion–fission dynamics studies using mass distribution as a probe. Pramana - J Phys 85, 291–301 (2015). https://doi.org/10.1007/s12043-015-1043-3
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DOI: https://doi.org/10.1007/s12043-015-1043-3