• Off-shell behaviour of32S(n, n)32S total cross-section and32S(d, p)33S reaction to the continuum

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      https://www.ias.ac.in/article/fulltext/pram/030/02/0115-0127

    • Keywords

       

      Off-shell scattering; stripping cross-section; n-target scattering

    • Abstract

       

      Two features of32S(d, p)33S reaction to the continuum, the parallelism between the excitation function of the energy differential stripping cross-section d2σ/dΘdE and the total neutron32S elastic scattering cross-section and the dependence of the ratio (d2σ/dΘdE)/σtot(n, n) on the transferred angular momentuml are explained by a model in which neutron stripping to the resonant states is essentially determined by the off-energy shell total neutron-target cross-section. At low excitation energies of the resonance the off-shell behaviour of the neutron scattering amplitude is very strong which leads to a big enhancement of the stripping cross-section relative to the total neutron-target cross-section. The model provides a good description of the measured (d, p) to (n, n) cross-section ratio corresponding tol>0 resonance. However it may not be appropriate for performing the calculations fors-wave resonances.

    • Author Affiliations

       

      Rama Shyam1

      1. Saha Institute of Nuclear Physics, Theoretical Nuclear Physics Division, 92, APC Road, Calcutta - 700 009, India
    • Dates

       
  • Pramana – Journal of Physics | News

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