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Evaporation residue cross-sections as a probe for nuclear dissipation in the fission channel of a hot rotating nucleus

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Abstract.

Evaporation residue cross-sections are calculated in a dynamical description of nuclear fission in the framework of the Langevin equation coupled with statistical evaporation of light particles. A theoretical model of one-body nuclear friction which was developed earlier, namely the chaos-weighted wall formula, is used in this calculation for the 224Th nucleus. The evaporation residue cross-section is found to be very sensitive to the choice of nuclear friction. The present results indicate that the chaotic nature of the single-particle dynamics within the nuclear volume may provide an explanation for the strong shape dependence of nuclear friction which is usually required to fit experimental data.

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Authors and Affiliations

  1. Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, 700 064, Kolkata, India

    Gargi Chaudhuri & Santanu Pal

Authors
  1. Gargi Chaudhuri
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  2. Santanu Pal
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Correspondence to Gargi Chaudhuri.

Additional information

Communicated by W. Henning

Received: 7 March 2003, Revised: 30 April 2003, Published online: 30 September 2003

PACS:

05.40.Jc Brownian motion - 24.60.Lz Chaos in nuclear systems - 25.70.Gh Compound nucleus - 25.70.Jj Fusion and fusion-fission reactions

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Chaudhuri, G., Pal, S. Evaporation residue cross-sections as a probe for nuclear dissipation in the fission channel of a hot rotating nucleus. Eur. Phys. J. A 18, 9–15 (2003). https://doi.org/10.1140/epja/i2003-10038-x

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  • DOI: https://doi.org/10.1140/epja/i2003-10038-x

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