The Nijmegen Potentials

Swart, J. J. de; Klomp, R. A. M.; Rentmeester, M. C. M.; Rijken, Th. A.

doi:10.1007/978-3-7091-9427-0_65

Cited by 30 publications

(30 citation statements)

References 29 publications

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“…The results of a first order Legendre polynomial fit are in good agreement in the backward part of the center-of-mass scattering hemisphere with the predictions of the Arndt et al [4] phase-shift analysis, those of the Nijmegen group [5], and with the ENDF/BVII [6] evaluation.…”

Section: Introductionsupporting

confidence: 70%

A high precision n-p scattering measurement at 14.9 MeV

et al. 2017

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Abstract. The n-p scattering angular distribution was measured with 14.9 MeV incident neutrons using the traditional time-of-flight technique with neutron-gamma discrimination. The scattering angle varied from 20 o to 65 o (laboratory system) in 5 o incremental steps. The efficiency of the neutron detectors was measured in the energy range 2-9 MeV relative to the 252 Cf-standard, and was calculated using Monte Carlo methods in the 2-14 MeV energy range. Two methods of analysis were applied for experimental and simulated data: a traditional approach with a fixed threshold, and a dynamic threshold approach. The present data agree with the ENDF/B-VII evaluation for the shape of n-p angular distribution within about 1.5%.

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Section: Introductionsupporting

confidence: 70%

A high precision n-p scattering measurement at 14.9 MeV

et al. 2017

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“…We have succeeded in evaluating a starting-energy-independent effective two-body interaction v (2) eff for a large no-core model space for the new Nijmegen potential [10]. Our main conclusion is that v (2) eff can be well-approximated by the G-matrix elements evaluated at a starting energy which depends on the energy of the initial two-particle state in the ladder diagrams.…”

Section: Discussionmentioning

confidence: 92%

“…For v 12 , we adopt a new Nijmegen local NN potential (NijmII) [10], which was fitted to the world NN scattering data with a nearly optimal χ 2 per degree of freedom (1.03 per datum). Other potentials (Reid93 and AV18) obtained by fitting the same data have a comparable χ 2 and yield similar deuteron and triton properties (see Ref.…”

Section: G-matrix and Two-body Effective Interactionmentioning

confidence: 99%

“…In this work, we will calculate the G-matrix using an improved version of the Nijmegen potential (NijmII) [10] and we follow the Lee and Suzuki method [7] to sum the two-body folded diagrams to all orders. The resulting starting-energy-independent two-body effective interaction is not Hermitian but its non-Hermiticity is found to be extremely small.…”

Section: Introductionmentioning

confidence: 99%

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Simple approximation for the starting-energy-independent two-body effective interaction with applications toLi6

et al. 1994

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We apply the Lee-Suzuki iteration method to calculate the linkedfolded diagram series for a new Nijmegen local NN potential. We obtain an exact starting-energy-independent effective two-body interaction for a multi-shell, no-core, harmonic-oscillator model space. It is found that the resulting effective-interaction matrix elements can be well approximated by the Brueckner G-matrix elements evaluated at starting energies selected in a simple way. These starting energies are closely related to the energies of the initial two-particle states in the ladder diagrams. The "exact" and approximate effective interactions are used to calculate the energy spectrum of 6 Li in order to test the utility of the approximate form.

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“…[5] to obtain the absolute angular distribution values listed in table 1 and shown in figure 5. This absolute angular distribution was then compared to the predictions of Arndt [3], Nijmegen [4] models and to the ENDF/B-VII evaluation [5] using the quantity defined by equation (1):…”

Section: Resultsmentioning

confidence: 99%

A new measurement of the H(n,n)H elastic scattering angular distribution at 14.9 MeV

Boukharouba

Massey

Haight

et al. 2007

Nd2007

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Abstract. The relative angular distribution of the scattering of neutrons by protons was measured at E n = 14.9 MeV neutron energy for center-of-mass scattering angles ranging from 60• to 180• . Absolute angular distribution values were obtained by normalizing the measured line shape to the accurately known n-p total cross section. Initial assessment indicates a somewhat better agreement of the data with the predictions of Arndt and Nijmegen than with the ENDF/B-VII.0 evaluation.

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The Nijmegen Potentials

Abstract: A review is given of the various Nijmegen potentials. Special attention is given to some of the newest developments, such as the extended soft-core model, the high-quality potentials, and the Nijmegen optical potentials for NN.

Cited by 30 publications

References 29 publications

A high precision n-p scattering measurement at 14.9 MeV

A high precision n-p scattering measurement at 14.9 MeV

Simple approximation for the starting-energy-independent two-body effective interaction with applications toLi6

A new measurement of the H(n,n)H elastic scattering angular distribution at 14.9 MeV

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