• Rama Shyam

      Articles written in Pramana – Journal of Physics

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

      Rama Shyam

      More Details Abstract Fulltext PDF

      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.

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