Shidling, P. D. ; Madhavan, N. ; Ramamurthy, V. S. ; Nath, S. ; Badiger, N. M. ; Pal, Santanu ; Sinha, A. K. ; Jhingan, A. ; Muralithar, S. ; Sugathan, P. ; Kailas, S. ; Behera, B. R. ; Singh, R. ; Varier, K. M. ; Radhakrishna, M. C. (2008) Experimental signature of entrance channel effect in heavy mass region via evaporation residue cross section and spin distribution measurements Physics Letters B, 670 (2). pp. 99-102. ISSN 0370-2693
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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S03702...
Related URL: http://dx.doi.org/10.1016/j.physletb.2008.10.044
Abstract
Evaporation residue (ER) cross sections and gamma multiplicity distributions have been measured for 16O + 184W and 19F + 181Ta systems in the excitation energy range of 50-90 MeV, leading to the same compound nucleus 200Pb. Comparison of experimental results of both the systems shows that ER cross sections and moments of gamma multiplicity distribution of 16O + 184W system are significantly higher than those of 19F + 181Ta system at higher excitation energies. Present measurements directly shows the experimental signature of entrance channel effect even with the systems which are not very different with respect to their entrance channel mass asymmetry. It is further demonstrated that the reduction in the ER cross section and moments of spin distribution for 19F + 181Ta system is mainly due to the suppression of fusion of higher l values.
Item Type: | Article |
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Source: | Copyright of this article belongs to Elsevier Science. |
Keywords: | Fusion-fission Reaction Dynamics; Compound Nuclear Reactions; Spin Distribution; Evaporation Residue Cross Sections; Entrance Channel Effect |
ID Code: | 15747 |
Deposited On: | 13 Nov 2010 12:37 |
Last Modified: | 03 Jun 2011 06:46 |
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