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Keywords:

  • Low-energy nuclear reactions D(d,n)3He, D(d,p)3H;
  • Transition matrix-element analysis;
  • Barrier penetrability model

Abstract

All relevant low-energy transition amplitudes for the D(d,n)3He and D(d,p)3H reactions were determined from a fit to Legendre expansion coefficients of the available experimental data. A simple barrier penetrability model was used. Quintet S-wave transitions are found to contribute strongly thus obliterating the idea of neutron-lean “polarized” fusion energy production. The D+D interaction radius was determined with good accuracy for both reactions individually. The astrophysical S functions show a small S-wave enhancement and P-wave suppression of the D(d,p)3H branch.