A neutron-proton spin correlation experiment at 14 MeV

Schöberl, Michael; Kuiper, H.; Schmelzer, R; Mertens, G.; Tornow, W.

doi:10.1088/0305-4616/10/11/002

Cited by 9 publications

(6 citation statements)

References 12 publications

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“…In addition to protons and deuterons, neutron beams have also extensively been used at TUNL, Bonn, Erlangen, PSI, Uppsala, LANSCE and RCNP [108,[186][187][188][189][190][191][192][193][194][195]. The obvious disadvantage of the neutron beam is that it cannot be manipulated in the beam lines so that experiments are more difficult.…”

Section: Experimental Techniques For Measuring the Observablesmentioning

confidence: 99%

Signatures of three-nucleon interactions in few-nucleon systems

et al. 2011

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Recent experimental results in three-body systems have unambiguously shown that calculations based only on nucleon-nucleon forces fail to accurately describe many experimental observables and one needs to include effects which are beyond the realm of the two-body potentials. This conclusion owes its significance to the fact that experiments and calculations can both be performed with high accuracy. In this review, both theoretical and experimental achievements of the past decade will be underlined. Selected results will be presented. The discussion on the effects of the three-nucleon forces is, however, limited to the hadronic sector. It will be shown that despite the major successes in describing these seemingly simple systems, there are still clear discrepancies between data and the state-of-the-art calculations.

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Section: Experimental Techniques For Measuring the Observablesmentioning

confidence: 99%

Signatures of three-nucleon interactions in few-nucleon systems

et al. 2011

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“…Open squares denote the single-energy PWA from PSI [40]. Other results are from TUNL (star) [33], Bonn (filled box) [41,35], Prague (open diamond) [34], Erlangen (open circle) [42], PSI (filled triangle) [43],…”

Section: Figure Captionsmentioning

confidence: 99%

Nucleon-nucleon elastic scattering to 3 GeV

2000

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A partial-wave analysis (PWA) of NN elastic scattering data has been completed. This analysis covers an expanded energy range, from threshold to a laboratory kinetic energy of 3 GeV, in order to include recent elastic pp polarized scattering measurements performed at SATURNE II. Results of the energy-dependent fit are compared with single-energy solutions and Saclay amplitudes obtained via the direct-reconstruction approach. We also comment on the status of Eps1 in the low-energy region.Comment: 13 pages of RevTeX, 57 png figure

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“…Specifically, a negative value of E, (which resulted from very early phase-shift analyses (PSA's), but see also Ref. [36]) is clearly ruled out. It is suggested to make use of this theoretical constraint in the energy parametrization of PSA's below 25 MeV.…”

Section: Theoretical Predictions For Amentioning

confidence: 99%

Phase-shift analysis ofNNscattering below 160 MeV: Indication for a strong tensor force

Henneck

1993

Phys. Rev. C

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A new phase-shift analysis of NN scattering in the energy range 15 -160 MeV is presented. The analysis is based on the carefully reviewed world pp +np data, including recent results for higher-order spin observables in n-p scattering. The latter are essential to determine the mixing parameter~& which is directly related to the isoscalar tensor force. c, displays a high trend, in agreement with recent analyses above 140 MeV, and is only reproduced by potential models with a strong tensor force. The prediction of the full Bonn potential is too low by 20% for energies above 40 MeV. All other I=O phase shifts show agreement with potential models; in particular, the notorious problem with 'P, around 50 MeV has disappeared. Around 25 MeV a ten parameter fit based purely on np data agrees with the corresponding At to the pp data and reveals no indication of anomalous charge independence breaking.PACS number(s): 21.30. +y, 13.75.Cs, 21.45. +v, 25. 10.+s

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A neutron-proton spin correlation experiment at 14 MeV

Cited by 9 publications

References 12 publications

Signatures of three-nucleon interactions in few-nucleon systems

Signatures of three-nucleon interactions in few-nucleon systems

Nucleon-nucleon elastic scattering to 3 GeV

Phase-shift analysis ofNNscattering below 160 MeV: Indication for a strong tensor force

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