Phys. Rev. C 64, 019801 (2001) [2 pages]Comment on “Spin and excitation energy dependence of fission survival for the 19F+175Lu system”Received 2 November 2000; published 5 June 2001 In a recent paper Hui et al. fit their evaporation residue data with CASCADE calculations equally well with and without nuclear viscosity by scaling the fission barrier with different scaling factors. I find that the need for scaling the fission barrier is an artifact of the level density calculation incorporated into the original CASCADE code. Contrary to the findings of Hui et al. the evaporation residue cross section is a very sensitive measure of the nuclear viscosity, if the calculations are done without scaling the fission barrier using a more recent level density method. © 2001 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevC.64.019801
DOI:
10.1103/PhysRevC.64.019801
PACS:
25.70.Jj, 21.10.Ma, 25.70.Gh, 24.30.Cz
See AlsoOriginal Article: S. K. Hui, C. R. Bhuinya, A. K. Ganguly, N. Madhavan, J. J. Das, P. Sugathan, D. O. Kataria, S. Murlithar, Lagy T. Baby, Vandana Tripathi, Akhil Jhingan, A. K. Sinha, P. V. Madhusudhana Rao, N. V. Prasad, A. M. Vinodkumar, R. Singh, M. Thoennessen, and G. Gervais, Spin and excitation energy dependence of fission survival for the 19F+175Lu system, Phys. Rev. C 62, 054604 (2000). |
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