Change over from compound nuclear fission to quasi-fission

Free access article

Issue		EPJ Web of Conferences Volume 2, 2010 CNR*09 - Second International Workshop on Compound Nuclear Reactions and Related Topics


Article Number		10003
Number of page(s)		3
Section		Heavy Ion and Fusion Reactions
DOI		10.1051/epjconf/20100210003
Published online		09 March 2010

EPJ Web of Conferences 2, 10003 (2010)

Change over from compound nuclear fission to quasi-fission

T.K. Ghosh¹^a, K. Banerjee¹, C. Bhattacharya¹, S. Bhattacharya¹, S. Kundu¹, J.K. Meena¹, G. Mukherjee¹, S. Mukhopadhyay¹, T.K. Rana¹, K.S. Golda² and P. Bhattacharya³

¹ Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata, 700 064, India
² Inter University Accelerator Centre, New Delhi - 110067, India
³ Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata 700 064, India

^a e-mail: tilak@veccal.ernet.in

Abstract

Fission fragment mass distribution has been measured in two reactions to populate compound nucleus ²⁴⁶Bk. Both the target nuclei were deformed. However, entrance channel mass asymmetry of the two systems was on the either side of the Businaro Gallone mass asymmetry parameter. Near the Coulomb barrier, at similar excitation energies, the width of the fission fragment mass distribution was found to be significantly different for the ¹⁴N+²³²Th reaction compared to the ¹¹B+²³⁵U reaction. The entrance channel mass asymmetry was found to play a significant role in deciding the fusion process.

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