Polarization and Differential Cross Sections in<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>n</mml:mi><mml:mo>−</mml:mo><mml:mi>d</mml:mi></mml:math>Scattering

Elwyn, A.J.; Lane, R.O.; Langsdorf, A.

doi:10.1103/physrev.128.779

Cited by 42 publications

(6 citation statements)

References 37 publications

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“…A similar comparison at 1.0 MeV (Fig. 2) shows less dramatic differences, but there is still a substantial discrepancy between data [2] and both DLs at back angles, as well as small differences through the entire angular range. Yet, somewhat newer data from Vedrenne [3] at an energy 0.2 MeV higher (Fig.…”

Section: The Neutron-deuteron Databasementioning

confidence: 67%

“…This is a fundamental problem of nuclear physics, since it is the next-most complex system of nucleons beyond the nucleonnucleon (NN) interaction. It is also a problem of practical importance in heavywater (D 2 O) moderated nuclear power systems and systems where D 2 O is used as a neutron reflector. In this paper, we outline the variations among the current data libraries and between these and the experimental data for low-energy neutrondeuterium (n+d) scattering.…”

Section: Introductionmentioning

confidence: 99%

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Nuclear Theory - Nuclear Power

Svenne¹,

Canton²,

Kozier³

2008

Latvian Journal of Physics and Technical Sciences

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The results from modern nuclear theory are accurate and reliable enough to be used for practical applications, in particular for scattering that involves few-nucleon systems of importance to nuclear power. Using well-established nucleon-nucleon (NN) interactions that fit well the NN scattering data, and the AGS form of the threebody theory, we have performed precise calculations of low-energy neutron-deuteron (n+d) scattering. We show that three-nucleon force effects that have impact on the low-energy vector analyzing powers have no practical effects on the angular distribution of the n+d cross-section. There appear to be problems for this scattering in the evaluated nuclear data file (ENDF) libraries, at the incident neutron energies less than 3.2 MeV. Supporting experimental data in this energy region are rather old (>25 years), sparse and often inconsistent. Our three-body results at low energies, 50 keV to 10.0 MeV, are compared to the ENDF/B-VII.0 and JENDL (Japanese Evaluated Nuclear Data Library) -3.3 evaluated angular distributions. The impact of these results on the calculated reactivity for various critical systems involving heavy water is shown.

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Section: The Neutron-deuteron Databasementioning

confidence: 67%

Section: Introductionmentioning

confidence: 99%

Nuclear Theory - Nuclear Power

Svenne¹,

Canton²,

Kozier³

2008

Latvian Journal of Physics and Technical Sciences

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show abstract

“…A similar comparison at 1.0 MeV ( fig. 2) shows less dramatic differences, but there is still a substantial discrepancy between data [2] and both DLs at back angles, as well as small differences through the entire angular range. Yet, newer data from Vendrenne [3] and the DLs persist up to 3.2 MeV, though the disagreement among DLs gets less at the higher energies.…”

Section: The Neutron-deuteron Databasementioning

confidence: 87%

Re-evaluating low-energy neutron-deuteron elastic scattering using three-nucleon theory

Svenne

Canton

Kozier

et al. 2007

Nd2007

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Abstract. Using a well-established nucleon-nucleon interaction that fits the NN scattering data (Bonn potential), and the AGS form of three-body theory, we perform precise calculations of low-energy neutron-deuteron scattering. There appear to be problems for this system in the ENDF/B-VI.8 (ENDF/B-VI.5 through VI.8) data library, which persist in the newest version, ENDF/B-VII.0. Supporting experimental data in this energy region are rather old (>25 years), sparse and often inconsistent. Our three-body results at low energies, 50 keV to 10 MeV are compared to the ENDF/B-VII.0 and JENDL-3.3 evaluated angular distributions. The impact of these results on calculated reactivity for various critical systems involving heavy water is shown.

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“…In theory, complex phase shifts should be employed to allow for the inelastic p-Yxtf reactions which amount to 40% of the scattering at 50 MeV. 8 Using complex phases for l^3> Suwa and Yokosawa 6 obtained a slightly better fit to the data (SY-A), their X 2 being 176 for 71 experimental points. They, too, used the Gammel-Thaler phases as starting points in the search, together with a set calculated by Kanada et al, 9 from a nonlocal proton-He 4 potential which was derived from the nucleon-nucleon interaction.…”

Section: Introductionmentioning

confidence: 99%