Reduction Methods for Total Reaction Cross Sections

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• 作者：P. R. S. Gomes ; D. R. Mendes Junior ; L. F. Canto ; J. Lubian…
• 刊名：Few-Body Systems
• 出版年：2016
• 出版时间：March 2016
• 年：2016
• 卷：57
• 期：3
• 页码：205-216
• 全文大小：1,001 KB
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• 作者单位：P. R. S. Gomes (1)
  D. R. Mendes Junior (1)
  L. F. Canto (1) (2)
  J. Lubian (1)
  P. N. de Faria (1)
  
  1. Instituto de Física, Universidade Federal Fluminense, Av. Litorânea s/n, Gragoatá, Niterói, RJ, 24210-340, Brazil
  2. Instituto de Física, Universidade Federal do Rio de Janeiro, C.P. 68528, Rio de Janeiro, RJ, 21941-972, Brazil
  
• 刊物类别：Physics and Astronomy
• 刊物主题：Physics
  Elementary Particles and Nuclei
  Nuclear Physics, Heavy Ions and Hadrons
  Atoms, Molecules, Clusters and Plasmas
  
• 出版者：Springer Wien
• ISSN：1432-5411

文摘

The most frequently used methods to reduce fusion and total reaction excitation functions were investigated in a very recent paper Canto et al. (Phys Rev C 92:014626, 2015). These methods are widely used to eliminate the influence of masses and charges in comparisons of cross sections for weakly bound and tightly bound systems. This study reached two main conclusions. The first is that the fusion function method is the most successful procedure to reduce fusion cross sections. Applying this method to theoretical cross sections of single channel calculations, one obtains a system independent curve (the fusion function), that can be used as a benchmark to fusion data. The second conclusion was that none of the reduction methods available in the literature is able to provide a universal curve for total reaction cross sections. The reduced single channel cross sections keep a strong dependence of the atomic and mass numbers of the collision partners, except for systems in the same mass range. In the present work we pursue this problem further, applying the reduction methods to systems within a limited mass range. We show that, under these circumstances, the reduction of reaction data may be very useful.