Measurement of the spin transfer parameter Ky'y in np scattering at 25.8 MeV

Ockenfels, M.; Meyer, Franz J.; Köble, T.; Witsch, W. von; Weltz, J.; Wingender, K.; Wollmann, G.

doi:10.1016/0375-9474(91)90300-u

Cited by 25 publications

(11 citation statements)

References 23 publications

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“…New differential cross-section data in the backward hemisphere between 20 and 100 MeV were provided by Karlsruhe [57], Louvain-la-Neuve [59], and Uppsala [60], new analyzing power data by TUNL at 16 [66]. This observable is highly sensitive to E, and quite insensitive to 'P, [16].…”

Section: Renormalizationmentioning

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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Section: Renormalizationmentioning

confidence: 99%

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

Henneck

1993

Phys. Rev. C

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“…The A yy (ϑ) measurement at 90 o c.m. is presented by Schöberl et al [16] [18,19] (Bonn), while ∆σ T was only recently measured in TUNL in the 3.65-11.60 MeV energy range [20,21]. In all these works the authors performed at least basic phase shift analyses to determine the value of ǫ 1 , in order to compare the experimental results from different experiments.…”

Section: The Mixing Parameter ǫmentioning

confidence: 99%

Measurement of spin-dependent total cross-section difference $\Delta\sigma_T$ in neutron-proton scattering at 16 MeV

Brož¹,

Černý²,

Doležal³

et al. 1996

Zeitschrift f�r Physik A Hadrons and Nuclei

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A new measurement of ∆σ T for polarized neutrons transmitted through a polarized proton target at 16.2 MeV has been made. A polarized neutron beam was obtained from the 3 H(d, n) 4 He reaction; proton polarization over 90% was achieved in a frozen spin target of 20 cm 3 volume. The measurement yielded the value ∆σ T = (−126 ± 21 ± 14) mb. The result of a simple phase shift analysis for the 3 S 1 − 3 D 1 mixing parameter ǫ 1 is presented and compared with the theoretical potential model predictions.

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“…However, since few-body physics is tile paradigm of the intimate relationship between theoretical and experimental nuclear physics, theoretical considerations will be used to structure and limit the material discussed in the present overview. Presently, rigorous calculations of few- The experimental data are from [12] (dots), [13] (open square), [14] (full square), and [15] (triangle). The solid curve is the Nijmegen PWA prediction [6].…”

Section: Introductionmentioning

confidence: 99%

Overview on reactions involving few-body nuclei

Tornow

2002

Czech J Phys

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Measurement of the spin transfer parameter Ky'y in np scattering at 25.8 MeV

Cited by 25 publications

References 23 publications

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

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

Measurement of spin-dependent total cross-section difference $\Delta\sigma_T$ in neutron-proton scattering at 16 MeV

Overview on reactions involving few-body nuclei

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