Elsevier

Nuclear Physics A

Volume 158, Issue 1, 7 December 1970, Pages 278-288
Nuclear Physics A

A kinematically complete experiment on the reaction n+d → n+n+p

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Abstract

The energy of the three nucleons produced in the break-up reaction 2H(n, nnp) at 14.1 MeV is measured in coincidence for an experimental configuration which enhances the final-state interaction of one n-p pair and gives a two-fold redundancy, essential for the rejection of false events. The analysis of the shape of the distribution in the Watson approximation, with due consideration of the influence of the other pairs in triplet or singlet states, gives the value −23.0±1.7 fm for the singlet n-p scattering length.

The absolute value ofd3σ/dE1dΩ1dΩ2 at the peak of the n-p pole is 5.1±0.7 mb sd −2 · MeV−1.

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Cited by (6)

  • On the investigation of the D(n,2n)p reaction at 14 MeV

    1974, Nuclear Instruments and Methods
  • Final-state interactions

    1971, Reports on Progress in Physics
  • Neutron-neutron quasifree scattering

    1971, Physical Review Letters

Some preliminary results of this work were repotted at the Spring session 1970 of the Swiss Physical Society.

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